<SEC-DOCUMENT>0000707549-20-000100-index.html : 20200617
<SEC-HEADER>0000707549-20-000100.hdr.sgml : 20200617
<ACCEPTANCE-DATETIME>20200617165732
ACCESSION NUMBER:		0000707549-20-000100
CONFORMED SUBMISSION TYPE:	11-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20191231
FILED AS OF DATE:		20200617
DATE AS OF CHANGE:		20200617

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:			0628

	FILING VALUES:
		FORM TYPE:		11-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-12933
		FILM NUMBER:		20970334

	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>11-K
<SEQUENCE>1
<FILENAME>lrcx_11-kxdocumentx2019.htm
<DESCRIPTION>11-K
<TEXT>
Document 1 - file: lrcx_11-kxdocumentx2019.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>2
<FILENAME>lrcx_11-kx2019xexhibit231.htm
<DESCRIPTION>EXHIBIT 23.1 - CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
<TEXT>
Document 2 - file: lrcx_11-kx2019xexhibit231.htm

</DOCUMENT>
</SEC-DOCUMENT>