<SEC-DOCUMENT>0001193125-19-254751-index.html : 20190925
<SEC-HEADER>0001193125-19-254751.hdr.sgml : 20190925
<ACCEPTANCE-DATETIME>20190925161856
ACCESSION NUMBER:		0001193125-19-254751
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		8
FILED AS OF DATE:		20190925
DATE AS OF CHANGE:		20190925
EFFECTIVENESS DATE:		20190925

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:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-12933
		FILM NUMBER:		191114412

	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>
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<SEQUENCE>1
<FILENAME>d807887ddefa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: d807887ddefa14a.htm

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<SEQUENCE>2
<FILENAME>g8078872a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g8078872a.jpg

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<SEQUENCE>3
<FILENAME>g8078873b.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g8078873b.jpg

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<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g8078875b.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g8078875b.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g807887dsp03.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g807887dsp03.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g807887dsp04.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g807887dsp04.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g807887dsp05.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g807887dsp05.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g807887dsp06.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g807887dsp06.jpg

</DOCUMENT>
</SEC-DOCUMENT>