EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statements on Form S-8 (No. 33-52072, No. 333-31289 and No. 333-124711) of Applied Materials, Inc. of our report dated June 8, 2006, with respect to the financial statements as of and for the years ended December 31, 2005 and 2004, and supplemental schedule of the Applied Materials, Inc. Employee Savings and Retirement Plan included in this Annual Report on Form 11-K.

/s/ ARMANINO McKENNA LLP ARMANINO McKENNA LLP

San Ramon, California

June 16, 2006

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