0001193125-09-225916 10-Q 5 20090927 20091106 20091105 LAM RESEARCH CORP 0000707549 3559 942634797 DE 0629 10-Q 34 000-12933 091162397 4650 CUSHING BLVD FREMONT CA 94538 5106590200 4650 CUSHING PARKWAY FREMONT CA 94538 10-Q 1 d10q.htm FORM 10-Q EX-31.1 2 dex311.htm CERTIFICATION OF PEO PURSUANT TO RULE 13A-14(A)/15D-14(A) EX-31.2 3 dex312.htm CERTIFICATION OF PFO PURSUANT TO RULE 13A-14(A)/15D-14(A) EX-32.1 4 dex321.htm CERTIFICATION OF PEO PURSUANT TO SECTION 1350 EX-32.2 5 dex322.htm CERTIFICATION OF PFO PURSUANT TO SECTION 1350