-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 TKOagUM1FElu8AUOhCSvlsNYUADr4Bkdjgmd2JoIxi2+wC0dNsuaAB57573+t/LJ
 O0HIBv4VwNWite9Z3sO2Uw==

<SEC-DOCUMENT>0000950134-09-002080.txt : 20090206
<SEC-HEADER>0000950134-09-002080.hdr.sgml : 20090206
<ACCEPTANCE-DATETIME>20090206165521
ACCESSION NUMBER:		0000950134-09-002080
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		7
CONFORMED PERIOD OF REPORT:	20081228
FILED AS OF DATE:		20090206
DATE AS OF CHANGE:		20090206

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LAM RESEARCH CORP
		CENTRAL INDEX KEY:			0000707549
		STANDARD INDUSTRIAL CLASSIFICATION:	SPECIAL INDUSTRY MACHINERY, NEC [3559]
		IRS NUMBER:				942634797
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-12933
		FILM NUMBER:		09577907

	BUSINESS ADDRESS:	
		STREET 1:		4650 CUSHING BLVD
		CITY:			FREMONT
		STATE:			CA
		ZIP:			94538
		BUSINESS PHONE:		5106590200

	MAIL ADDRESS:	
		STREET 1:		4650 CUSHING PARKWAY
		CITY:			FREMONT
		STATE:			CA
		ZIP:			94538
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-Q
<SEQUENCE>1
<FILENAME>f51386e10vq.htm
<DESCRIPTION>FORM 10-Q
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4.14
<SEQUENCE>2
<FILENAME>f51386exv4w14.htm
<DESCRIPTION>EX-4.14
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.148
<SEQUENCE>3
<FILENAME>f51386exv10w148.htm
<DESCRIPTION>EX-10.148
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>4
<FILENAME>f51386exv31w1.htm
<DESCRIPTION>EX-31.1
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>5
<FILENAME>f51386exv31w2.htm
<DESCRIPTION>EX-31.2
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.1
<SEQUENCE>6
<FILENAME>f51386exv32w1.htm
<DESCRIPTION>EX-32.1
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.2
<SEQUENCE>7
<FILENAME>f51386exv32w2.htm
<DESCRIPTION>EX-32.2
</DOCUMENT>
</SUBMISSION>