Applied Materials (AMAT) 10-Q/A 2011 Q1 Quarterly report (amended)

EXHIBIT 31.2

CERTIFICATION

I, George S. Davis, certify that:

1.	I have reviewed this Amendment No. 1 to Quarterly Report on Form 10-Q of Applied Materials, Inc.;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

Date: May 19, 2011

/s/ George S. Davis  

George S. Davis 

Executive Vice President, Chief Financial Officer