Exhibit 99.1

      CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER
                                   PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


      I, Kevin Fairbairn, certify, pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the
Annual Report of Intevac, Inc. on Form 10-K for the fiscal year ended December
31, 2002 fully complies with the requirements of Section 13(a) or 15(d) of the
Securities Exchange Act of 1934 and that information contained in such Form 10-K
fairly presents in all material respects the financial condition and results of
operations of Intevac, Inc.

                        By:      /s/   KEVIN FAIRBAIRN
                              ------------------------------------
                        Name: Kevin Fairbairn
                        Title: President, Chief Executive Officer and Director


      I, Charles B. Eddy III, certify, pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the
Annual Report of Intevac, Inc. on Form 10-K for the fiscal year period ended
December 31, 2002 fully complies with the requirements of Section 13(a) or 15(d)
of the Securities Exchange Act of 1934 and that information contained in such
Form 10-K fairly presents in all material respects the financial condition and
results of operations of Intevac, Inc.

                        By:      /s/   CHARLES B. EDDY III
                              ------------------------------------
                        Name:  Charles B. Eddy III
                        Title: Vice President, Finance and Administration,
                               Chief Financial Officer, Treasurer and Secretary