8-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

Current Report Pursuant to Section 13 or 15(d) of
the Securities Exchange Act of 1934

Date of report (Date of earliest event reported): August 24, 2005

LAM RESEARCH CORPORATION

(Exact name of registrant as specified in its charter)

Delaware
(State or Other Jurisdiction of Incorporation)

0-12933
(Commission File Number) 94-2634797
(IRS Employer Identification Number)

4650 Cushing Parkway
Fremont, California 94538
(Address of principal executive offices including zip code)

(510) 572-0200
(Registrant’s telephone number, including area code)

Not Applicable
(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

TABLE OF CONTENTS

	Item 7.01. Regulation FD Disclosure
	Item 9.01. Financial Statements and Exhibits
SIGNATURES
EXHIBIT INDEX
EXHIBIT 99.1

Item 7.01. Regulation FD Disclosure

On August 24, 2005, Lam Research Corporation (the Company) issued a press release announcing that its Board of Directors has authorized the repurchase of up to an additional $500 million of the Company’s common stock from the public market or in private purchases. A copy of the press release issued by the Company on August 24, 2005 is attached hereto as Exhibit 99.1.

The information in this Current Report on Form 8-K, including the exhibit, is furnished pursuant to Item 7.01 and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities under that Section. Furthermore, the information in the Current Report on Form 8-K, including the exhibit, shall not be deemed to be incorporated by reference into the filings of the Company under the Securities Act of 1933, as amended.

Item 9.01. Financial Statements and Exhibits

     (c) Exhibits

99.1 Press Release dated August 24, 2005 announcing additional $500 million authorized to its share repurchase program

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: August 26, 2005

LAM RESEARCH CORPORATION
By:	/s/ Mark S. Frey
	Mark S. Frey
	Vice President, Finance and Corporate Controller

EXHIBIT INDEX

Exhibit
No.	Description
99.1	Press Release dated August 24, 2005 announcing additional $500 million authorized to its share repurchase program

EX-99.1

Exhibit 99.1

FOR IMMEDIATE RELEASE

Lam Research Corporation Contact:
Kathleen Bela, Investor Relations, phone: 510/572-4566, e-mail: kathleen.bela@lamrc.com

Lam Research Corporation Announces $500 Million Share Repurchase Program

FREMONT, Calif., August 24, 2005 — Lam Research Corporation (Nasdaq: LRCX) today announced that its Board of Directors has authorized the repurchase of $500 million of the Company’s common stock from the public market or in private purchases. The terms of the repurchase program will permit Lam to repurchase shares through September 30, 2008. As of June 26, 2005, Lam had approximately $894 million in total cash, short-term investments, and restricted cash and approximately 137 million shares outstanding. Under the Board’s previous $250 million share repurchase authorization, Lam had repurchased approximately seven million shares at an aggregate cost of approximately $214 million through August 23, 2005. Management is planning to repurchase both the amount remaining in the previous repurchase approval and the amount in the new repurchase approval according to the Board authorizations.

Statements made in this press release which are not statements of historical fact are forward-looking statements and are subject to the safe harbor provisions created by the Private Securities Litigation Reform Act of 1995. Such forward-looking statements relate, but are not limited, to management’s plans for repurchasing Company stock under the approvals granted by the Board. These plans are dependent on the Company’s future financial condition, and management’s determinations of the continued value of a repurchase program.

~more~

Lam Announces $500 Million Share Repurchase Program Page 2 of 2

Such statements are based on current expectations and are subject to uncertainties and changes in condition, significance, value and effect as well as other risks detailed in documents filed with the Securities and Exchange Commission, including specifically the report on Form 10-K for the year ended June 26, 2005, which could cause actual results to vary from expectations. The Company undertakes no obligation to update the information or statements made in this press release.

Lam Research Corporation is a major supplier of wafer fabrication equipment and services to the world’s semiconductor industry. Lam’s common stock trades on the NASDAQ National Market® under the symbol LRCX. Lam is a NASDAQ-100® company. The Company’s World Wide Web address is http://www.lamresearch.com.

###