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EXHIBIT 23.2

CONSENT OF
INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

        We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of our report dated February 1, 2006, relating to the consolidated financial statements of AXT, Inc., which appears in AXT, Inc.'s Annual Report on Form 10-K for the year ended December 31, 2005. We also consent to the reference to us under the heading "Experts" in such Registration Statement.

/s/ BURR, PILGER & MAYER LLP

San Jose, California
December 14, 2006

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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM