<SEC-DOCUMENT>0001193125-19-049143-index.html : 20190225
<SEC-HEADER>0001193125-19-049143.hdr.sgml : 20190225
<ACCEPTANCE-DATETIME>20190225085302
ACCESSION NUMBER:		0001193125-19-049143
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20190225
DATE AS OF CHANGE:		20190225

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:			0625

	FILING VALUES:
		FORM TYPE:		424B3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-229762
		FILM NUMBER:		19628172

	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>424B3
<SEQUENCE>1
<FILENAME>d709360d424b3.htm
<DESCRIPTION>424B3
<TEXT>
Document 1 - file: d709360d424b3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g709338g16r82.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g709338g16r82.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g709360g16r82.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g709360g16r82.jpg

</DOCUMENT>
</SEC-DOCUMENT>