Exhibit 32.2


                            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 September 30, 2004 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

November 3, 2004







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.