Exhibit 99.1


         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 Annual Report of Aehr Test Systems (the "Company")
on Form 10-K for the period ending May 31, 2002 as filed with the Securities
and Exchange Commission on the date hereof (the "Report"), I, Rhea J.
Posedel, Chief Executive 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/ RHEA J. POSEDEL
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Rhea J. Posedel
Chief Executive Officer
August 28, 2002