UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             ----------------------
                                 SCHEDULE 13D/A
                                 Amendment No. 1
                                 (Rule 13d-101)

    INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a)
                     AND AMENDMENTS THERETO FILED PURSUANT
                                TO RULE 13d-2(a)


                           Southwall Technologies Inc.
                        ---------------------------------
                                (Name of Issuer)

                     Common Stock, par value $.001 per share
                     ---------------------------------------
                         (Title of Class of Securities)

                                    844909101
                     ----------------------------------------
                                 (CUSIP Number)

                                  Saul S. Cohen
                               Proskauer Rose LLP
                                  1585 Broadway
                            New York, New York 10036
                                  212-969-3000
------------------------------------------------------------------------------
 (Name, Address and Telephone Number of Person Authorized to Receive Notices and
                                 Communications)

                                December 18, 2003
                                -----------------
            (Date of Event which Requires Filing of this Statement)

     If the filing  person has  previously  filed a statement on Schedule 13G to
report the  acquisition  that is the subject of this Schedule 13D, and is filing
this schedule  because of Rule  13d-1(e),  13(d)-1(f) or  13(d)-1(g),  check the
following box |_|.

     The  Information  required on the remainder of this cover page shall not be
deemed to be "filed"  for the purpose of Section 18 of the  Securities  Exchange
Act of 1934 ("Act") or otherwise  subject to the  liabilities  of the section of
the Act but shall be subject to all other  provisions of the Act (however, see
the Notes).






                                                   SCHEDULE 13D
----------------------------------                                                                         -------------------------
CUSIP No. 844909101                                                                                        Page 1 of 13
----------------------------------                                                                         -------------------------
       

--------- --------------------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSONS
          Needham & Company, Inc.
          S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
          (Intentionally Omitted)
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                                                                 (a)  |_|
                                                                                                                            (b)  |X|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   4      SOURCE OF FUNDS
          WC
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                                |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   6      CITIZENSHIP OR PLACE OF ORGANIZATION
          U.S.
--------- --------------------------------------------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
           NUMBER OF                 7     SOLE VOTING POWER
             SHARES
          BENEFICIALLY
            OWNED BY
              EACH
           REPORTING                       2,023,566
          PERSON WITH
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     8     SHARED VOTING POWER
                                           0
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     9     SOLE DISPOSITIVE POWER
                                           2,023,566
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                    10     SHARED DISPOSITIVE POWER
                                           0
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          2,023,566
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*                                                |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
          16.13%
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   14     TYPE OF REPORTING PERSON*
          BD
--------- --------------------------------------------------------------------------------------------------------------------------






                                                   SCHEDULE 13D


----------------------------------                                                                         -------------------------
CUSIP No. 844909101                                                                                        Page 2 of 13
----------------------------------                                                                         -------------------------

        



--------- --------------------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSONS
          Needham Management Partners, L.P.
          S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
          (Intentionally Omitted)
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                                                                 (a)  |_|
                                                                                                                            (b)  |X|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   4      SOURCE OF FUNDS
          WC
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                                |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   6      CITIZENSHIP OR PLACE OF ORGANIZATION
          U.S.
--------- --------------------------------------------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
           NUMBER OF                 7     SOLE VOTING POWER
             SHARES
          BENEFICIALLY
            OWNED BY
              EACH
           REPORTING                       0
          PERSON WITH
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     8     SHARED VOTING POWER
                                           700,000
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     9     SOLE DISPOSITIVE POWER
                                           0
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                    10     SHARED DISPOSITIVE POWER
                                           700,000
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          700,000
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*                                                 |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
          5.58%
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   14     TYPE OF REPORTING PERSON*
          PN
--------- --------------------------------------------------------------------------------------------------------------------------








                                                   SCHEDULE 13D



----------------------------------                                                                         -------------------------
CUSIP No. 844909101                                                                                        Page 3 of 13
----------------------------------                                                                         -------------------------

       


--------- --------------------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSONS
          Needham Emerging Growth Partners, L.P.
          S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
          (Intentionally Omitted)
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                                                                 (a)  |_|
                                                                                                                            (b)  |X|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   4      SOURCE OF FUNDS
          WC
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                                |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   6      CITIZENSHIP OR PLACE OF ORGANIZATION
          U.S.
--------- --------------------------------------------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
           NUMBER OF                 7     SOLE VOTING POWER
             SHARES
          BENEFICIALLY
            OWNED BY
              EACH
           REPORTING                       0
          PERSON WITH
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     8     SHARED VOTING POWER
                                           300,000
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     9     SOLE DISPOSITIVE POWER
                                           0
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                    10     SHARED DISPOSITIVE POWER
                                           300,000
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          300,000
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*                                                 |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
          2.39%
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   14     TYPE OF REPORTING PERSON*
          PN
--------- --------------------------------------------------------------------------------------------------------------------------







                                                   SCHEDULE 13D




----------------------------------                                                                         -------------------------
CUSIP No. 844909101                                                                                        Page 4 of 13
----------------------------------                                                                         -------------------------


       


--------- --------------------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSONS
          Needham Contrarian Fund, L.P.
          S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
          (Intentionally Omitted)
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                                                                 (a)  |_|
                                                                                                                            (b)  |X|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   4      SOURCE OF FUNDS
          WC
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                                |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   6      CITIZENSHIP OR PLACE OF ORGANIZATION
          U.S.
--------- --------------------------------------------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
           NUMBER OF                 7     SOLE VOTING POWER
             SHARES
          BENEFICIALLY
            OWNED BY
              EACH
           REPORTING                       0
          PERSON WITH
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     8     SHARED VOTING POWER
                                           300,000
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     9     SOLE DISPOSITIVE POWER
                                           0
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                    10     SHARED DISPOSITIVE POWER
                                           300,000
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          300,000
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*                                                 |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
          2.39%
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   14     TYPE OF REPORTING PERSON*
          PN
--------- --------------------------------------------------------------------------------------------------------------------------







                                                   SCHEDULE 13D



----------------------------------                                                                         -------------------------
CUSIP No. 844909101                                                                                        Page 5 of 13
----------------------------------                                                                         -------------------------
       


--------- --------------------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSONS
          Needham Emerging Growth Partners (Caymans), L.P.
          S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
          (Intentionally Omitted)
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                                                                 (a)  |_|
                                                                                                                            (b)  |X|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   4      SOURCE OF FUNDS
          WC
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                                |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   6      CITIZENSHIP OR PLACE OF ORGANIZATION
          U.S.
--------- --------------------------------------------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
           NUMBER OF                 7     SOLE VOTING POWER
             SHARES
          BENEFICIALLY
            OWNED BY
              EACH
           REPORTING                       0
          PERSON WITH
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     8     SHARED VOTING POWER
                                           100,000
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     9     SOLE DISPOSITIVE POWER
                                           0
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                    10     SHARED DISPOSITIVE POWER
                                           100,000
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          100,000
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*                                                 |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
          0.80%
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   14     TYPE OF REPORTING PERSON*
          PN
--------- --------------------------------------------------------------------------------------------------------------------------






                                                   SCHEDULE 13D



----------------------------------                                                                         -------------------------
CUSIP No. 844909101                                                                                        Page 6 of 13
----------------------------------                                                                         -------------------------

       


--------- --------------------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSONS
          George A. Needham
          S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
          (Intentionally Omitted)
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                                                                 (a)  |_|
                                                                                                                            (b)  |X|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   4      SOURCE OF FUNDS
          PF
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                                |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   6      CITIZENSHIP OR PLACE OF ORGANIZATION
          U.S.
--------- --------------------------------------------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
           NUMBER OF                 7     SOLE VOTING POWER
             SHARES
          BENEFICIALLY
            OWNED BY
              EACH
           REPORTING                       30,000
          PERSON WITH
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     8     SHARED VOTING POWER
                                           5,000
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     9     SOLE DISPOSITIVE POWER
                                           30,000
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                    10     SHARED DISPOSITIVE POWER
                                           5,000
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          35,000
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*                                                 |X|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
          0.28%
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   14     TYPE OF REPORTING PERSON*
          IN
--------- --------------------------------------------------------------------------------------------------------------------------





                                                   SCHEDULE 13D



----------------------------------                                                                         -------------------------
CUSIP No. 844909101                                                                                        Page 7 of 13
----------------------------------                                                                         -------------------------
       

--------- --------------------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSONS
          Needham Capital Partners II, L.P.
          S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
          (Intentionally Omitted)
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                                                                 (a)  |_|
                                                                                                                            (b)  |X|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   4      SOURCE OF FUNDS
          WC
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                                |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   6      CITIZENSHIP OR PLACE OF ORGANIZATION
          U.S.
--------- --------------------------------------------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
           NUMBER OF                 7     SOLE VOTING POWER
             SHARES
          BENEFICIALLY
            OWNED BY
              EACH
           REPORTING                       0
          PERSON WITH
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     8     SHARED VOTING POWER
                                           3,312,406
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     9     SOLE DISPOSITIVE POWER
                                           0
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                    10     SHARED DISPOSITIVE POWER
                                           3,312,406
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          3,312,406
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*                                                 |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
          20.91%
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   14     TYPE OF REPORTING PERSON*
          PN
--------- --------------------------------------------------------------------------------------------------------------------------







                                                   SCHEDULE 13D



----------------------------------                                                                         -------------------------
CUSIP No. 844909101                                                                                        Page 8 of 13
----------------------------------                                                                         -------------------------
       

--------- --------------------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSONS
          Needham Capital Partners II (Bermuda), L.P.
          S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
          (Intentionally Omitted)
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                                                                 (a)  |_|
                                                                                                                            (b)  |X|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   4      SOURCE OF FUNDS
          WC
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                                |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   6      CITIZENSHIP OR PLACE OF ORGANIZATION
          U.S.
--------- --------------------------------------------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
           NUMBER OF                 7     SOLE VOTING POWER
             SHARES
          BENEFICIALLY
            OWNED BY
              EACH
           REPORTING                       0
          PERSON WITH
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     8     SHARED VOTING POWER
                                           464,317
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     9     SOLE DISPOSITIVE POWER
                                           0
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                    10     SHARED DISPOSITIVE POWER
                                           464,317
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          464,317
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*                                                 |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
          3.57%
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   14     TYPE OF REPORTING PERSON*
          PN
--------- --------------------------------------------------------------------------------------------------------------------------






                                                   SCHEDULE 13D



----------------------------------                                                                         -------------------------
CUSIP No. 844909101                                                                                        Page 9 of 13
----------------------------------                                                                         -------------------------

       

--------- --------------------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSONS
          Needham Capital Partners III, L.P.
          S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
          (Intentionally Omitted)
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                                                                 (a)  |_|
                                                                                                                            (b)  |X|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   4      SOURCE OF FUNDS
          WC
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                                |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   6      CITIZENSHIP OR PLACE OF ORGANIZATION
          U.S.
--------- --------------------------------------------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
           NUMBER OF                 7     SOLE VOTING POWER
             SHARES
          BENEFICIALLY
            OWNED BY
              EACH
           REPORTING                       0
          PERSON WITH
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     8     SHARED VOTING POWER
                                           5,798,843
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     9     SOLE DISPOSITIVE POWER
                                           0
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                    10     SHARED DISPOSITIVE POWER
                                           5,798,843
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          5,798,843
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*                                                 |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
          31.64%
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   14     TYPE OF REPORTING PERSON*
          PN
--------- --------------------------------------------------------------------------------------------------------------------------





                                                   SCHEDULE 13D



----------------------------------                                                                         -------------------------
CUSIP No. 844909101                                                                                        Page 10 of 13
----------------------------------                                                                         -------------------------
       

--------- --------------------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSONS
          Needham Capital Partners IIIA L.P.
          S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
          (Intentionally Omitted)
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                                                                 (a)  |_|
                                                                                                                            (b)  |X|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   4      SOURCE OF FUNDS
          WC
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                                |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   6      CITIZENSHIP OR PLACE OF ORGANIZATION
          U.S.
--------- --------------------------------------------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
           NUMBER OF                 7     SOLE VOTING POWER
             SHARES
          BENEFICIALLY
            OWNED BY
              EACH
           REPORTING                       0
          PERSON WITH
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     8     SHARED VOTING POWER
                                           598,878
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     9     SOLE DISPOSITIVE POWER
                                           0
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                    10     SHARED DISPOSITIVE POWER
                                           598,878
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          598,878
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*                                                 |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
          4.56%
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   14     TYPE OF REPORTING PERSON*
          PN
--------- --------------------------------------------------------------------------------------------------------------------------





                                                   SCHEDULE 13D



----------------------------------                                                                         -------------------------
CUSIP No. 844909101                                                                                        Page 11 of 13
----------------------------------                                                                         -------------------------

       


--------- --------------------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSONS
          Needham Capital Partners III (Bermuda), L.P.
          S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
          (Intentionally Omitted)
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                                                                 (a)  |_|
                                                                                                                            (b)  |X|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   4      SOURCE OF FUNDS
          WC
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                                |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   6      CITIZENSHIP OR PLACE OF ORGANIZATION
          U.S.
--------- --------------------------------------------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
           NUMBER OF                 7     SOLE VOTING POWER
             SHARES
          BENEFICIALLY
            OWNED BY
              EACH
           REPORTING                       0
          PERSON WITH
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     8     SHARED VOTING POWER
                                           1,155,727
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     9     SOLE DISPOSITIVE POWER
                                           0
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                    10     SHARED DISPOSITIVE POWER
                                           1,155,727
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          1,155,727
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*                                                 |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
          8.45%
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   14     TYPE OF REPORTING PERSON*
          PN
--------- --------------------------------------------------------------------------------------------------------------------------






                                                   SCHEDULE 13D



----------------------------------                                                                         -------------------------
CUSIP No. 844909101                                                                                        Page 12 of 13
----------------------------------                                                                         -------------------------
       

--------- --------------------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSONS
          Needham Capital Management L.L.C.
          S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
          (Intentionally Omitted)
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                                                                 (a)  |_|
                                                                                                                            (b)  |X|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   4      SOURCE OF FUNDS
          WC
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                                |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   6      CITIZENSHIP OR PLACE OF ORGANIZATION
          U.S.
--------- --------------------------------------------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
           NUMBER OF                 7     SOLE VOTING POWER
             SHARES
          BENEFICIALLY
            OWNED BY
              EACH
           REPORTING                       0
          PERSON WITH
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     8     SHARED VOTING POWER
                                           9,710,127
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     9     SOLE DISPOSITIVE POWER
                                           0
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                    10     SHARED DISPOSITIVE POWER
                                           9,710,127
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          9,710,127
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*                                                 |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
          43.67%
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   14     TYPE OF REPORTING PERSON*
          PN
--------- --------------------------------------------------------------------------------------------------------------------------






                                                   SCHEDULE 13D



----------------------------------                                                                         -------------------------
CUSIP No. 844909101                                                                                        Page 13 of 13
----------------------------------                                                                         -------------------------

       


--------- --------------------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSONS
          Needham Capital Management (Bermuda) L.L.C.
          S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
          (Intentionally Omitted)
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                                                                 (a)  |_|
                                                                                                                            (b)  |X|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   4      SOURCE OF FUNDS
          WC
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                                |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   6      CITIZENSHIP OR PLACE OF ORGANIZATION
          U.S.
--------- --------------------------------------------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
           NUMBER OF                 7     SOLE VOTING POWER
             SHARES
          BENEFICIALLY
            OWNED BY
              EACH
           REPORTING                       0
          PERSON WITH
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     8     SHARED VOTING POWER
                                           1,620,044
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                     9     SOLE DISPOSITIVE POWER
                                           0
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------------------------------- -------- -----------------------------------------------------------------------------------------
                                    10     SHARED DISPOSITIVE POWER
                                           1,620,044
--------------------------------- -------- -----------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          1,620,044
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*                                                 |_|
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
          11.45%
--------- --------------------------------------------------------------------------------------------------------------------------
--------- --------------------------------------------------------------------------------------------------------------------------
   14     TYPE OF REPORTING PERSON*
          PN
--------- --------------------------------------------------------------------------------------------------------------------------






                           Statement on Schedule 13D/A
                        Pursuant to Rule 13d-1 under the
                   Securities Exchange Act of 1934, as amended


Item 1.    Security and Issuer.

     This Statement on Schedule 13D/A (this  "Statement")  relates to the common
stock,  par  value  $0.001  per  share  (the  "Common   Stock"),   of  Southwall
Technologies Inc., a Delaware corporation (the "Company"). This statement amends
the  Schedule 13D filed by the  Reporting  Persons (as  hereinafter  defined) on
March 8, 2004.  The  principal  executive  offices of the Company are located at
1029 Corporation Way, Palo Alto, California 94303.

Item 2.    Identity and Background.

     (a)-(c)  and (f) This  Statement  is filed by  Needham & Company,  Inc.,  a
Delaware corporation  ("Needham & Co."),  Needham Management  Partners,  L.P., a
Delaware limited partnership ("NMP"),  Needham Emerging Growth Partners, L.P., a
Delaware limited partnership ("NEGP"), Needham Contrarian Fund, L.P., a Delaware
limited partnership ("NCF"), Needham Emerging Growth Partners (Caymans), L.P., a
Cayman  Islands  limited  partnership  ("NEGPC"),  George A. Needham,  a natural
person who is a U.S.  citizen,  Needham  Capital  Partners  II, L.P., a Delaware
limited partnership  ("NCPII"),  Needham Capital Partners II (Bermuda),  L.P., a
Bermuda limited  partnership  ("NCPIIB"),  Needham Capital  Partners III, L.P, a
Delaware limited partnership  ("NCPIII"),  Needham Capital Partners IIIA, L.P, a
Delaware  limited   partnership   ("NCPIIIA"),   Needham  Capital  Partners  III
(Bermuda),  L.P., a Bermuda  limited  partnership  ("NCPIIIB"),  Needham Capital
Management  L.L.C., a Delaware limited  liability  company ("NCM"),  and Needham
Capital  Management  (Bermuda)  L.L.C.,  a  Bermuda  limited  liability  company
("NCMB").  Needham & Co., NMP,  NEGP,  NCF,  NEGPC,  George A.  Needham,  NCPII,
NCPIIB, NCPIII,  NCPIIIA,  NCPIIIB, NCM and NCMB are collectively referred to in
this Statement as the "Reporting Persons."

     The principal  business office and mailing address of the Reporting Persons
is c/o  Needham & Company,  Inc.,  445 Park  Avenue,  New York,  New York 10022.
Needham & Co. is an investment  banking,  securities and asset  management firm.
The  business of NMP is serving as the general  partner of NEGP,  NCF and NEGPC,
each of which  are  private  investment  partnerships.  The  business  of NCM is
serving as the general partner of NCPII,  NCPIII and NCPIIIA,  each of which are
private investment partnerships.  The business of NCMB is serving as the general
partner  of  NCPIIB  and   NCPIIIB,   each  of  which  are  private   investment
partnerships.  The present principal occupation of George A. Needham is Chairman
of the Board and Chief Executive Officer of Needham & Co. The name and principal
occupation  or  employment  of the  executive  officers,  directors  or  general
partners of the Reporting Persons who are corporations, limited partnerships and
limited liability companies are set forth on Schedule I to this Statement.

     (d) and (e) During the past five years,  none of the Reporting  Persons or,
to the best  knowledge of the Reporting  Persons,  any of the persons  listed on
Schedule I, (i) has been convicted in a criminal  proceeding  (excluding traffic
violations  or  similar  misdemeanors)  or




(ii) has been a party to a civil proceeding of a judicial or administrative body
of competent  jurisdiction  and as a result of such proceeding was or is subject
to a  judgment,  decree  or final  order  enjoining  future  violations  of,  or
prohibiting or mandating activities subject to, Federal or State securities laws
or finding any violation with respect to such laws.

Item 3.    Source and Amount of Funds or Other Consideration.

     The Schedule 13D filed by the  Reporting  Person on March 8, 2004  reported
the  issuance  by the Company to the  Reporting  Persons of warrants to purchase
shares of Common  Stock  and  Secured  Convertible  Promissory  Notes  ("Notes")
pursuant to an  Investment  Agreement by and among the  Company,  certain of the
Reporting Persons and Dolphin Direct Equity Partners, L.P.,  (collectively,  the
"Investor  Parties") which agreement was subsequently  amended and restated,  as
more fully described in the Schedule 13D (the "Investment Agreement").

     Pursuant to Section 4.14 of the  Investment  Agreement,  if, as part of its
restructuring  efforts,  the  Company  issues any equity or  warrants,  options,
rights or other  instruments  exercisable  or  convertible  into equity,  to any
creditor, landlord, employee, director, agent or consultant, then the Company is
required to issue additional warrants to any Investor Parties who at the time of
such issuance had pursuant to the Investment  Agreement provided loan guaranties
to the  Company  or  purchased  Secured  Convertible  Promissory  Notes from the
Company in such  amounts as would allow the Investor  Parties to maintain  their
aggregate  ownership  percentage (on a fully-diluted  basis) as if such issuance
had not occurred.  Section 4.14 of the  Investment  Agreement also provides that
if, as part of the Company's  restructuring efforts, the Company issues notes or
other debt  instruments  to any of its  creditors,  then it is required to issue
additional warrants to such Investor Parties  representing the right to purchase
that  number of shares of Common  Stock equal to the product of (x) 1.25 and (y)
the original principal amount of such note or debt instrument.

     The  Reporting  Persons  inadvertently  omitted to report the  transactions
described below in the Schedule 13D relating to warrants issued to Needham & Co.
pursuant to the Investment Agreement.

     On  December  18,  2003,  Needham  & Co.  entered  into an  agreement  (the
"Needham/Dolphin   Agreement")  with  Dolphin  Direct  Equity   Partners,   L.P.
("Dolphin") pursuant to which Dolphin agreed to provide funds in connection with
the loan  guaranty  provided  by Needham & Co. to the  Company and Needham & Co.
agreed to transfer to Dolphin  one-third of the warrants issued to Needham & Co.
by the Company in connection with such loan guaranty,  including warrants issued
pursuant to the anti-dilution rights set forth in Section 4.14 of the Investment
Agreement.  Pursuant to the Needham/Dolphin Agreement, Needham & Co. transferred
to Dolphin, at Needham's cost, warrants exercisable for 313,705 shares of Common
Stock at an exercise  price of $0.01 per share issued to Needham on December 18,
2003, which warrants  constituted a portion of the warrant for 941,155 shares of
Common Stock  issued to Needham & Co.  pursuant to the  Investment  Agreement on
December 18, 2003 (which warrant is described in a Schedule 13D filed by Needham
& Co. on December 29, 2003),  as well as the warrants  described below issued by
the  Company  to  Needham  & Co.  pursuant  to  Section  4.14 of the  Investment
Agreement.





     On December 18, 2003, the Company and Pacific Business Funding,  a division
Greater Bay Bank, N.A.  ("PBF"),  entered into a Forbearance  Agreement in which
PBF agreed to forbear until May 5, 2004 from  pursuing its remedies  pursuant to
certain  defaults by the Company  under a  factoring  line of credit  previously
entered  into  between the  parties.  In  connection  with the  execution of the
Forbearance  Agreement,  the Company issued PBF a warrant to purchase a total of
250,000  shares  of  Common  Stock at an  exercise  price of  $0.01  per  share.
Additionally,  on December 18, 2003, the Company's directors were issued options
exercisable  for  56,461  shares  of  Common  Stock  in lieu of  cash  fees  for
attendance  at Board  meetings.  As a result  of these  issuances,  pursuant  to
Section 4.14 of the  Investment  Agreement,  the Company issued to Needham & Co.
warrants  to  purchase a total of 26,551  shares of common  stock at an exercise
price of $0.01 per share. Pursuant to the Needham/Dolphin  Agreement,  Needham &
Co. then  transferred  warrants  exercisable for 5,772 shares of Common Stock to
Dolphin at Needham's cost.

     On  January  15,  2004,  the  Company  issued to Needham & Co. a warrant to
purchase  941,115 shares of Common Stock at an exercise price of $0.01 per share
(the "January 2004  Warrant").  The January 2004 Warrant was issued to Needham &
Co.  pursuant to the terms of the  Investment  Agreement  in  consideration  for
providing a loan guaranty. Pursuant to the Needham/Dolphin Agreement,  Needham &
Co. then transferred  warrants exercisable for 313,705 shares of Common Stock to
Dolphin at Needham's cost.

     On January 19, 2004, PBF consented to a guarantee by Southwall  Europe GmbH
of the obligation owed by the Company to Teijin Limited pursuant to a Guaranteed
Loan Agreement. In connection with the consent, the Company issued PBF a warrant
to purchase a total of 75,000  shares of common  stock at an  exercise  price of
$0.01 per share.  As a result of this issuance,  pursuant to Section 4.14 of the
Investment Agreement, the Company issued to Needham & Co. warrants to purchase a
total of 10,082 shares of common stock at an exercise  price of $0.01 per share.
Pursuant  to the  Needham/Dolphin  Agreement,  Needham  & Co.  then  transferred
warrants  exercisable  for 2,649  shares of Common Stock to Dolphin at Needham's
cost.

     On January 30, 2004 PBF agreed to amend the Forbearance  Agreement to allow
for changes to the Investment Agreement.  In connection with the amendment,  the
Company  issued to PBF a warrant to purchase a total of 35,000  shares of Common
Stock at an  exercise  price of $0.01 per share.  As a result of this  issuance,
pursuant to Section  4.14 of the  Investment  Agreement,  the Company  issued to
Needham & Co. warrants to purchase a total of 4,702 shares of Common Stock at an
exercise price of $0.01 per share.  Pursuant to the  Needham/Dolphin  Agreement,
Needham & Co. then transferred  warrants  exercisable for 1,235 shares of Common
Stock to Dolphin at Needham's cost.

Item 4.    Purpose of Transaction.

     The  Investment  Agreement  pursuant to which the  warrants  were issued to
Needham & Co. is described in the 13D filed by the Reporting Persons on March 8,
2003.





     Other than as specified in this Item 4, the Reporting Persons have no plans
or  proposals  which  relate to or which would result in or relate to any of the
actions specified in paragraphs (a) through (j) of Item 4 of Schedule 13D.

Item 5.    Interest in Securities of the Issuer.

     (a) (1) Needham & Co.  owns of record and  beneficially  737,067  shares of
Common Stock and the warrants  described in item 3 above,  which are immediately
exercisable for an aggregate of 1,286,499 shares of Common Stock.  Assuming the
full  exercise  of the  warrants,  Needham & Co.  would own of record  2,023,566
shares of  Common  Stock,  which  would  constitute  16.13%  of the  issued  and
outstanding Common Stock.

     (2) NEGP owns of record and  beneficially  300,000  shares of Common Stock,
which constitutes 2.39% of the issued and outstanding Common Stock.

     (3) NCF owns of record and  beneficially  300,000  shares of Common  Stock,
which constitutes 2.39% of
the issued and outstanding Common Stock.

     (4) NEGPC owns of record and  beneficially  100,000 shares of Common Stock,
which constitutes 0.80%
of the issued and outstanding Common Stock.

     (5) NMP may be deemed to own  beneficially  the aggregate amount of 700,000
shares of Common Stock owned by NEGP, NCF and NEGPC by virtue of its position as
general partner of those Reporting  Persons,  which amount  constitutes 5.58% of
the issued and outstanding Common Stock. NMP disclaims  beneficial  ownership of
all of the reported shares of Common Stock owned by NEGP, NCF and NEGPC, and the
inclusion  of these shares of Common Stock in this report shall not be deemed an
admission by it of beneficial ownership of such shares for any purpose.

     (6) George A.  Needham  owns of record and  beneficially  30,000  shares of
Common Stock. He also may be deemed to beneficially own (i) the shares of Common
Stock and the  warrants  owned by Needham & Co. by virtue of his position in and
share ownership of Needham & Co., (ii) the shares of Common Stock owned by NEGP,
NCF and NEGPC by virtue of his  position as general  partner of NMP, the general
partner of NEGP,  NCF and NEGPC,  (iii) the Notes and  warrants  owned by NCPII,
NCPIII and NCPIIIA by virtue of his  position  as a manager of NCM,  the general
partner  of NCPII,  NCPIII and  NCPIIIA,  (iv) the Notes and  warrants  owned by
NCPIIB and NCPIIIB by virtue of his position as a manager of NCMB, and (v) 5,000
shares of Common Stock owned by family  members of Mr.  Needham.  The  aggregate
amount of shares of Common Stock owned by Mr.  Needham and his family members is
35,000,  which constitutes 0.28% of the issued and outstanding  shares of Common
Stock. Mr. Needham disclaims  beneficial ownership of all of the reported shares
of Common Stock and the  warrants,  except the shares of Common Stock he owns of
record,  and the inclusion of these shares in this report shall not be deemed an
admission by him of beneficial ownership for any purpose.

     (7)  NCPII  owns of record  and  beneficially  (i) a Note in the  principal
amount of $877,058,  which is convertible to 877,058 shares of Preferred  Stock,
which in turn is






convertible to 877,058 shares of Common Stock, subject to adjustments applicable
to the Note and Preferred  Stock,  and (ii) a Warrant which is  exercisable  for
2,435,348 shares of Common Stock.

     (8) NCPIIB  owns of record  and  beneficially  (i) a Note in the  principal
amount of $122,942,  which is convertible to 122,942 shares of Preferred  Stock,
which in turn is  convertible  to  122,942  shares of Common  Stock,  subject to
adjustments applicable to the Note and Preferred Stock, and (ii) a Warrant which
is exercisable for 341,375 shares of Common Stock.

     (9) NCPIII  owns of record  and  beneficially  (i) a Note in the  principal
amount of  $1,535,416,  which is  convertible  to 1,535,416  shares of Preferred
Stock, which in turn is convertible to 1,535,416 shares of Common Stock, subject
to adjustments  applicable to the Note and Preferred  Stock,  and (ii) a Warrant
which is exercisable for 4,263,427 shares of Common Stock.

     (10) NCPIIIA owns of record and  beneficially  (i) a Note in the  principal
amount of $158,571,  which is convertible to 158,571 shares of Preferred  Stock,
which in turn is  convertible  to  158,571  shares of Common  Stock,  subject to
adjustments applicable to the Note and Preferred Stock, and (ii) a Warrant which
is exercisable  for 440,307 shares of Common Stock.

     (11) NCPIIIB owns of record and  beneficially  (i) a Note in the  principal
amount of $306,013,  which is convertible to 306,013 shares of Preferred  Stock,
which in turn is  convertible  to  306,013  shares of Common  Stock,  subject to
adjustments applicable to the Note and Preferred Stock, and (ii) a Warrant which
is exercisable for 849,714 shares of Common Stock.

     (12) NCM may be deemed to own  beneficially the Notes and warrants owned by
NCPII,  NCPIII and NCPIIIA by virtue of its position as general partner of those
Reporting  Persons,  and  accordingly  may be  deemed  to  beneficially  own the
9,710,127 shares of Common Stock underlying those convertible securities,  which
amount  constitute  43.67% of the  issued  and  outstanding  Common  Stock.  NCM
disclaims  beneficial  ownership of all of the  reported  shares of Common Stock
underlying  the Notes and warrants owned by NCPII,  NCPIII and NCPIIIA,  and the
inclusion  of these shares of Common Stock in this report shall not be deemed an
admission by it of beneficial ownership of such shares for any purpose.

     (13) NCMB may be deemed to own beneficially the Notes and warrants owned by
NCPIIB  and  NCPIIIB  by virtue of its  position  as  general  partner  of those
Reporting  Persons,  and  accordingly  may be  deemed  to  beneficially  own the
1,620,044 shares of Common Stock underlying those convertible securities,  which
amount  constitute  11.45% of the  issued and  outstanding  Common  Stock.  NCMB
disclaims  beneficial  ownership of all of the  reported  shares of Common Stock
underlying the Notes and warrants owned by NCPIIB and NCPIIIB, and the inclusion
of these  shares of Common Stock in this report shall not be deemed an admission
by it of beneficial ownership of such shares for any purpose.





     (b) Needham & Co. has the sole power to direct the vote and  disposition of
737,067 shares of Common Stock directly owned by it, and,  assuming the exercise
of the  Warrants  in full,  Needham & Co. will have the sole power to direct the
vote and  disposition  of  1,286,499  shares of Common Stock  issuable  upon the
exercise of the Warrants. NMP, the general partner of NEGP, and NEGP have shared
power to direct  the vote and  disposition  of  300,000  shares of Common  Stock
directly  owned by NEGP.  NMP,  the general  partner of NCF, and NCF have shared
power to direct  the vote and  disposition  of  300,000  shares of Common  Stock
directly owned by NCF. NMP, the general partner of NEGPC,  and NEGPC have shared
power to direct  the vote and  disposition  of  100,000  shares of Common  Stock
directly  owned by NEGPC.  NCM,  the  general  partner of NCPII,  and NCPII have
shared power to direct the vote and  disposition  of 3,312,406  shares of Common
Stock  issuable  upon the  conversion  of the Note  (assuming  the  simultaneous
conversion of the shares of Series A Preferred  Stock  underlying  the Note into
shares of Common  Stock) and the exercise of the Warrant  owned by NCPII.  NCMB,
the general  partner of NCPIIB,  and NCPIIB have shared power to direct the vote
and  disposition  of 464,317 shares of Common Stock issuable upon the conversion
of the Note  (assuming  the  simultaneous  conversion  of the shares of Series A
Preferred  Stock  underlying  the Note  into  shares of  Common  Stock)  and the
exercise of the Warrant owned by NCPIIB. NCM, the general partner of NCPIII, and
NCPIII have shared power to direct the vote and disposition of 5,798,843  shares
of  Common  Stock  issuable  upon  the  conversion  of the  Note  (assuming  the
simultaneous conversion of the shares of Series A Preferred Stock underlying the
Note into  shares of Common  Stock) and the  exercise  of the  Warrant  owned by
NCPIII.  NCM, the general  partner of NCPIIIA,  and NCPIIIA have shared power to
direct the vote and  disposition of 598,878 shares of Common Stock issuable upon
the conversion of the Note (assuming the  simultaneous  conversion of the shares
of Series A Preferred Stock underlying the Note into shares of Common Stock) and
the  exercise of the  Warrant  owned by NCPIIIA.  NCMB,  the general  partner of
NCPIIIB,  and NCPIIIB  have shared power to direct the vote and  disposition  of
1,155,727  shares of  Common  Stock  issuable  upon the  conversion  of the Note
(assuming the simultaneous  conversion of the shares of Series A Preferred Stock
underlying the Note into shares of Common Stock) and the exercise of the Warrant
owned by  NCPIIIB.  George A.  Needham has the sole power to direct the vote and
disposition  of 30,000 shares of Common Stock directly owned by him. Mr. Needham
has  shared  power to direct  the vote of 5,000  shares of  Common  Stock  owned
directly by members of his immediate family.  George A. Needham may be deemed to
have shared power to direct the vote and disposition of (i) the shares of Common
Stock  owned by Needham & Co.,  and the  shares of Common  Stock  issuable  upon
exercise of the  warrants  owned by Needham & Co., by virtue of his  position in
and share  ownership  of Needham & Co.,  (ii) the shares of Common  Stock  owned
directly by NEGP, NCF and NEGPC because he serves as managing general partner of
NMP,  the  general  partner of NEGP,  NCF and NEGPC,  (iii) the shares of Common
Stock  issuable  upon the  conversion of the Notes  (assuming  the  simultaneous
conversion of the shares of Series A Preferred  Stock  underlying the Notes into
shares of Common  Stock) and the  exercise  of the  warrants  owned  directly by
NCPII,  NCPIII and  NCPIIIA  because he serves as a manager of NCM,  the general
partner  of NCPII,  NCPIII  and  NCPIIIA,  and (iv) the  shares of Common  Stock
issuable upon the conversion of the Notes (assuming the simultaneous  conversion
of the shares of Series A Preferred  Stock  underlying  the Notes into shares of
Common  Stock) and the  exercise of the  warrants  owned  directly by NCPIIB and
NCPIIIB because he serves





as a manager of NCMB,  the general  partner of NCPIIB and NCPIIIB.  Mr.  Needham
disclaims  beneficial ownership of the shares of Common Stock owned by Needham &
Co., NEGP, NCF, NEGPC, NCPII, NCPIIB, NCPIII, NCPIIIA and NCPIIIB.

     (c)  Except as noted  above,  the  Reporting  Persons  did not  effect  any
transactions in the securities of the Company during the past 60 days.

     (d) and (e)       Not applicable.

Item 6.    Contracts, Arrangements, Understandings or Relationships with respect
           to Securities of the Issuer.

     Other than as described in Item 4 above,  to the knowledge of the Reporting
Persons, there are no contracts,  arrangements,  understandings or relationships
(legal or  otherwise)  among the  persons  named in Item 2 with  respect  to any
securities of the Company.



Item 7.    Material to be Filed as Exhibits.

1.       Joint Filing Agreement






                                    SIGNATURE


     After  reasonable  inquiry  and to the best  knowledge  and  belief  of the
undersigned,  the information set forth in this statement is true,  complete and
correct.


Dated:  April 23, 2004



                                   NEEDHAM & COMPANY, INC.




                                   By:/s/ Glen W. Albanese
                                      -----------------------------------------
                                        Name:  Glen W. Albanese
                                        Title:    Chief Financial Officer



                                      /s/ George A. Needham
                                      -----------------------------------------
                                                  George A. Needham




                            NEEDHAM EMERGING GROWTH PARTNERS, L.P.




                            By: Needham Management Partners, L.P.,
                                 its general partner




                            By:/s/ Glen W. Albanese
                               -----------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    General Partner




                            NEEDHAM CONTRARIAN FUND, L.P.




                            By: Needham Management Partners, L.P.,
                                its general partner




                            By:/s/ Glen W. Albanese
                               -----------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    General Partner




                            NEEDHAM EMERGING GROWTH PARTNERS (CAYMANS), L.P.




                            By: Needham Management Partners, L.P.,
                                 its general partner




                            By:/s/ Glen W. Albanese
                               ------------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    General Partner




                            NEEDHAM MANAGEMENT PARTNERS, L.P.




                            By: /s/ Glen W. Albanese
                               -------------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    General Partner




                            NEEDHAM CAPITAL PARTNERS II, L.P.




                            By: Needham Capital Management L.L.C.,
                                 its general partner




                            By:/s/ Glen W. Albanese
                               ------------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    General Partner




                            NEEDHAM CAPITAL PARTNERS II  (BERMUDA), L.P.




                            By: Needham Capital Management (Bermuda) L.L.C.,
                                 its general partner




                            By:/s/ Glen W. Albanese
                               -----------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    General Partner







                             NEEDHAM CAPITAL PARTNERS III, L.P.




                             By: Needham Capital Management L.L.C.,
                                  its general partner




                             By:/s/ Glen W. Albanese
                                ------------------------------------------
                                  Name:  Glen W. Albanese
                                  Title:    General Partner




                             NEEDHAM CAPITAL PARTNERS IIIA, L.P.




                             By: Needham Capital Management L.L.C.,
                                  its general partner




                             By:/s/ Glen W. Albanese
                                -----------------------------------------
                                  Name:  Glen W. Albanese
                                  Title:    General Partner




                             NEEDHAM CAPITAL PARTNERS III (BERMUDA), L.P.




                             By: Needham Capital Management (Bermuda) L.L.C.,
                                  its general partner




                             By:/s/ Glen W. Albanese
                                ------------------------------------------
                                  Name:  Glen W. Albanese
                                  Title:    General Partner




                             NEEDHAM CAPITAL MANAGEMENT, L.L.C.




                             By:/s/ Glen W. Albanese
                                ------------------------------------------
                                  Name:  Glen W. Albanese
                                  Title:    General Partner




                             NEEDHAM CAPITAL MANAGEMENT (BERMUDA), L.L.C.




                             By:/s/ Glen W. Albanese
                                -----------------------------------------
                                  Name:  Glen W. Albanese
                                  Title:    General Partner





                                   Schedule I

           Executive Officers and Directors of Needham & Company, Inc.







          Name Of Officer                                                           Principal Employment/Office With
            Or Director                      Business Address                           Needham & Company, Inc.
         ----------------           ----------------------------           --------------------------------------------------
                                                                   
                                     c/o Needham & Company, Inc.
George A. Needham                    445 Park Avenue                        Chairman of the Board & Chief Executive Officer
                                     New York, New York  10022

John C. Michaelson                   c/o Needham & Company, Inc.            President of Needham Funds
                                     445 Park Avenue
                                     New York, New York  10022

John J. Prior, Jr.                   c/o Needham & Company, Inc.            Managing Director, Corporate Finance
                                     445 Park Avenue
                                     New York, New York  10022

Chad W. Keck                         c/o Needham & Company, Inc.            Managing Director, Corporate Finance, West Coast
                                     445 Park Avenue
                                     New York, New York  10022

Warren M. Foss                       c/o Needham & Company, Inc.            Managing Director, Institutional Sales
                                     445 Park Avenue
                                     New York, New York  10022

Vincent J. Keney                     c/o Needham & Company, Inc.            Managing Director, OTC Trading
                                     445 Park Avenue
                                     New York, New York  10022

Theodor J. Kundtz                    c/o Needham & Company, Inc.            Managing Director, Equity Research
                                     445 Park Avenue
                                     New York, New York  10022

Glen W. Albanese                     c/o Needham & Company, Inc.            Managing Director, Chief Financial Officer
                                     445 Park Avenue
                                     New York, New York  10022

Andre R. Horn                        c/o Needham & Company, Inc.            Chairman Emeritus
                                     445 Park Avenue
                                     New York, New York  10022

Edgar F. Heizer, Jr.                 c/o Needham & Company, Inc.            Director
                                     445 Park Avenue                        Chairman of the Board of Heizer Corporation
                                     New York, New York  10022

Eugene R. White                      c/o Needham & Company, Inc.            Director
                                     445 Park Avenue
                                     New York, New York  10022

Joseph H. Reich                      c/o Needham & Company, Inc.            Director
                                     445 Park Avenue                        Managing General Partner of Centennial Associates
                                     New York, New York  10022






                                   Schedule I


     Needham  Management  Partners,  L.P.  is the sole  general  partner of: (a)
Needham Emerging Growth Partners,  L.P., (b) Needham  Contrarian Fund, L.P., and
(c) Needham Emerging Growth Partners (Caymans),  L.P. Needham Capital Management
L.L.C. is the sole general partner of (a) Needham Capital Partners II, L.P., (b)
Needham Capital  Partners III, L.P. and (c) Needham Capital  Partners IIIA, L.P.
Needham Capital  Management  (Bermuda) L.L.C. is the sole general partner of (a)
Needham Capital Partners II (Bermuda), L.P. and (b) Needham Capital Partners III
(Bermuda), L.P.

     The general partners of Needham Management Partners, L.P. are:





          Name Of Officer                                                           Principal Employment/Office With
            Or Director                        Business Address                         Needham & Company, Inc.
          ---------------                      ----------------                     ---------------------------------

                                                                      

George A. Needham                    c/o Needham & Company, Inc.            Chairman of the Board & Chief Executive Officer
                                     445 Park Avenue
                                     New York, New York  10022

John C. Michaelson                   c/o Needham & Company, Inc.            President of Needham Funds
                                     445 Park Avenue
                                     New York, New York  10022

Jane K. Kloppenburg                  c/o Needham & Company, Inc.            Managing Director, Portfolio Manager
                                     445 Park Avenue
                                     New York, New York  10022

Glen W. Albanese                     c/o Needham & Company, Inc.            Managing Director, Chief Financial Officer
                                     445 Park Avenue
                                     New York, New York  10022




         The general partners of Needham Capital Management L.L.C. are:






          Name Of Officer                                                           Principal Employment/Office With
            Or Director                        Business Address                          Needham & Company, Inc.
          ---------------                      ----------------                     --------------------------------

                                                                       


George A. Needham                    c/o Needham & Company, Inc.            Chairman of the Board & Chief Executive Officer
                                     445 Park Avenue
                                     New York, New York  10022

John C. Michaelson                   c/o Needham & Company, Inc.            President of Needham Funds
                                     445 Park Avenue
                                     New York, New York  10022

John J. Prior, Jr.                   c/o Needham & Company, Inc.            Managing Director, Corporate Finance
                                     445 Park Avenue
                                     New York, New York  10022

Thomas P. Shanahan                   c/o Needham & Company, Inc.            Managing Director, Needham Asset Management
                                     445 Park Avenue
                                     New York, New York  10022











          Name Of Officer                                                           Principal Employment/Office With
            Or Director                        Business Address                          Needham & Company, Inc.
          ---------------                      ----------------                     --------------------------------

                                                                       

Glen W. Albanese                     c/o Needham & Company, Inc.            Managing Director, Chief Financial Officer
                                     445 Park Avenue
                                     New York, New York  10022




       The general partners of Needham Capital Management (Bermuda) L.L.C. are:






          Name Of Officer                                                           Principal Employment/Office With
            Or Director                        Business Address                         Needham & Company, Inc.
        -------------------                    ----------------                     --------------------------------
                                                                      


George A. Needham                    c/o Needham & Company, Inc.            Chairman of the Board & Chief Executive Officer
                                     445 Park Avenue
                                     New York, New York  10022

John C. Michaelson                   c/o Needham & Company, Inc.            President of Needham Funds
                                     445 Park Avenue
                                     New York, New York  10022

John J. Prior, Jr.                   c/o Needham & Company, Inc.            Managing Director, Corporate Finance
                                     445 Park Avenue
                                     New York, New York  10022

Thomas P. Shanahan                   c/o Needham & Company, Inc.            Managing Director, Needham Asset Management
                                     445 Park Avenue
                                     New York, New York  10022

Glen W. Albanese                     c/o Needham & Company, Inc.            Managing Director, Chief Financial Officer
                                     445 Park Avenue
                                     New York, New York  10022






                                    EXHIBIT 1

                             JOINT FILING AGREEMENT



     In accordance with Rule 13d-1(f)  promulgated under the Securities Exchange
Act of 1934, as amended,  the undersigned  hereby agree to the joint filing with
all  other  Reporting  Persons  (as such term is  defined  in the  Schedule  13D
referred  to below) on behalf of each of them of a  statement  on  Schedule  13D
(including  amendments  thereto) with respect to the common shares of beneficial
interest,  par value $.001 per share, of Southwall Technologies Inc., a Delaware
corporation, and that this Agreement may be included as an Exhibit to such joint
filing.  This  Agreement may be executed in any number of  counterparts,  all of
which taken together shall constitute one and the same instrument.

     IN WITNESS WHEREOF, the undersigned hereby execute this Agreement as of the
23rd day of April, 2004.




                            NEEDHAM & COMPANY, INC.




                            By:/s/ Glen W. Albanese
                               ---------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    Chief Financial Officer




                            /s/ George A. Needham
                            ------------------------------------------
                                          George A. Needham




                            NEEDHAM EMERGING GROWTH PARTNERS, L.P.




                            By: Needham Management Partners, L.P.,
                                 its general partner




                            By:/s/ Glen W. Albanese
                               ---------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    General Partner




                            NEEDHAM CONTRARIAN FUND, L.P.




                            By: Needham Management Partners, L.P.,
                                 its general partner




                            By:/s/ Glen W. Albanese
                               --------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    General Partner




                            NEEDHAM EMERGING GROWTH PARTNERS (CAYMANS), L.P.




                            By: Needham Management Partners, L.P.,
                                 its general partner




                            By:/s/ Glen W. Albanese
                               -------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    General Partner




                            NEEDHAM MANAGEMENT PARTNERS, L.P.




                            By:/s/ Glen W. Albanese
                               -------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    General Partner




                            NEEDHAM CAPITAL PARTNERS II, L.P.




                            By: Needham Capital Management L.L.C.,
                                 its general partner




                            By:/s/ Glen W. Albanese
                               -------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    General Partner







                            NEEDHAM CAPITAL PARTNERS II (BERMUDA), L.P.




                            By: Needham Capital Management (Bermuda) L.L.C.,
                                 its general partner




                            By: /s/ Glen W. Albanese
                                -----------------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    General Partner




                            NEEDHAM CAPITAL PARTNERS III, L.P.




                            By: Needham Capital Management L.L.C.,
                                 its general partner




                            By:/s/ Glen W. Albanese
                               ------------------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    General Partner




                            NEEDHAM CAPITAL PARTNERS IIIA, L.P.




                            By: Needham Capital Management L.L.C.,
                                 its general partner




                            By:/s/ Glen W. Albanese
                               ------------------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    General Partner




                            NEEDHAM CAPITAL PARTNERS III (BERMUDA), L.P.




                            By: Needham Capital Management (Bermuda) L.L.C.,
                                 its general partner




                            By:/s/ Glen W. Albanese
                               ------------------------------------------------
                                 Name:  Glen W. Albanese
                                 Title:    General Partner







                          NEEDHAM CAPITAL MANAGEMENT, L.L.C.




                          By:/s/ Glen W. Albanese
                             -------------------------------------
                               Name:  Glen W. Albanese
                               Title:    General Partner




                          NEEDHAM CAPITAL MANAGEMENT (BERMUDA), L.L.C.




                          By:/s/ Glen W. Albanese
                             --------------------------------------
                               Name:  Glen W. Albanese
                               Title:    General Partner