<SEC-DOCUMENT>0001193125-14-222180-index.html : 20140623
<SEC-HEADER>0001193125-14-222180.hdr.sgml : 20140623
<ACCEPTANCE-DATETIME>20140602160300
ACCESSION NUMBER:		0001193125-14-222180
CONFORMED SUBMISSION TYPE:	SD
PUBLIC DOCUMENT COUNT:		2
<RULE>
<RULE-NAME>13p-1
<ITEM>
<ITEM-NUMBER>1.01
<ITEM-PERIOD>20131231
</ITEM>
<ITEM>
<ITEM-NUMBER>1.02
<ITEM-PERIOD>20131231
</ITEM>
</RULE>
FILED AS OF DATE:		20140602
DATE AS OF CHANGE:		20140602

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:		SD
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-12933
		FILM NUMBER:		14884044

	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>SD
<SEQUENCE>1
<FILENAME>d734413dsd.htm
<DESCRIPTION>SD
<TEXT>
Document 1 - file: d734413dsd.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1.02
<SEQUENCE>2
<FILENAME>d734413dex102.htm
<DESCRIPTION>EX-1.02
<TEXT>
Document 2 - file: d734413dex102.htm

</DOCUMENT>
</SEC-DOCUMENT>