Exhibit 99.2

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

         In connection with the Quarterly Report of Vicor Corporation (the
"Company") on Form 10-Q for the period ending March 31, 2003 as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), I, Mark A.
Glazer, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C.
Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of
2002, that:

         (1)  The Report fully complies with the requirements of Section 13(a)
              or 15(d) of the Securities Exchange Act of 1934; and

         (2)  The information contained in the Report fairly presents, in all
              material respects, the financial condition and results of
              operations of the Company.

/s/ Mark A. Glazer
- ------------------
Mark A. Glazer
Chief Financial Officer

May 12, 2003

                  A signed original of this written statement required by
Section 906 has been provided to the Company and will be retained by the Company
and furnished to the Securities and Exchange Commission or its staff upon
request.