EXHIBIT 99.1

               FOR IMMEDIATE RELEASE       CONTACT: David Ringler       
                                           Investor Relations/          
                                           Corporate Communications     
                                           Lam Research Corporation     
                                           4650 Cushing Parkway         
                                           Fremont, California 94538    
                                           Tel (510) 572-6848           
                                           Fax (510) 572-6454           
                                           email david.ringler@lamrc.com

                            LAM RESEARCH CORPORATION ADOPTS
                                SHAREHOLDER RIGHTS PLAN

                         Fremont, California, January 24, 1997 - Lam
               Research Corporation (Nasdaq: LRCX) today announced that
               its Board of Directors had adopted a Shareholder Rights
               Plan in which rights will be distributed as a dividend at
               the rate of one right for each share of common stock, par
               value $.001 per share, of the Company held by stockhold-
               ers of record as of the close of business on January 31,
               1997.  In connection with the adoption of the Shareholder
               Rights Plan, the Board of Directors also adopted a number
               of amendments to the Company's bylaws, including amend-
               ments requiring advance notice of stockholder nominations
               of directors, stockholder proposals, actions by written
               consent by stockholders and a stockholder's intention to
               cumulate votes.  The bylaw amendments also eliminate the
               right of stockholders to call special meetings of stock-
               holders.

                         The Rights Plan is intended to protect stock-
               holders by deterring coercive takeover tactics, including
               the accumulation of shares in the open market or through
               private transactions, and to prevent an acquiror from
               gaining control of the Company without offering a fair
               price to all of the Company's stockholders.  The Rights
               will expire on January 31, 2007.  The bylaw amendments
               are intended to provide advance notice of stockholder
               initiatives so that the Board of Directors, as well as
               all stockholders of the Company, can evaluate such ini-
               tiatives with the benefit of full disclosure of informa-
               tion and in an orderly manner.

                         Under the Rights Plan, each right initially
               will entitle stockholders to buy one unit of a share of
               preferred stock for $250.  The rights will be exercisable
               only if a person or group (other than stockholders cur-
               rently owning 15 percent of the Company's common stock)
               acquires beneficial ownership of 15 percent or more of
               the Company's common stock or commences a tender or
               exchange offer upon consummation of which such person or
               group would beneficially own 15 percent or more of the
               Company's common stock.

                         If any person becomes the beneficial owner of
               15 percent or more of the Company's common stock, other
               than pursuant to a tender or exchange offer for all
               outstanding shares of the Company approved by a majority
               of the independent directors not affiliated with such
               person, then each right not owned by such person or
               related parties will entitle its holder to purchase, at
               the right's then current exercise price, shares of the
               Company's common stock (or, in certain circumstances as
               determined by the Board, cash, other property or other
               securities) having a value of twice the right's then
               current exercise price.  In addition, if after any person
               has become a 15 percent stockholder, the Company is
               involved in a merger or other business combination trans-
               action with another person in which the Company does not
               survive or in which its common stock is changed or ex-
               changed, or if the Company sells 50 percent or more of
               its assets or earning power to another person, each right
               will entitle its holder to purchase, at the right's then
               current exercise price, shares of common stock of such
               other person having a value of twice the right's then
               current exercise price.

                         The Company will generally be entitled to
               redeem the Rights at $.001 per Right at any time until 10
               business days (subject to extension) following a public
               announcement that a 15 percent position has been ac-
               quired.

                         Details of the Shareholder Rights Plan are
               outlined in a letter to be mailed to all stockholders of
               the Company.

                         Safe Harbor Statement Under the Private Securi-
               ties Litigation Act of 1995:  This press release contains
               certain forward-looking statements, including those
               relating to distribution of dividends and operation of
               the Shareholder Rights Plan, that are subject to various
               risks and uncertainties that could cause results to
               differ materially.  These risks include the risk that
               future action or inaction by the Board with respect to
               the Shareholder Rights Plan, including any future deci-
               sion relating to redemption of the Rights or amendment of
               the terms of the Rights, could become the subject of
               litigation and other risks detailed from time to time in
               the Company's SEC reports, including the report on Form
               10-Q for the quarter ended September 30, 1996.  The
               Company assumes no obligation to update the information
               in this release.

                         Lam Research Corporation is a leading supplier
               of wafer processing equipment to the worldwide semicon-
               ductor industry.  The Company's broad product offerings
               are focused on etch and deposition, two of the most vital
               steps in the fabrication of current and future integrated
               circuits.  Founded in 1980, Lam is headquartered in
               Fremont and maintains customer support centers throughout
               the United States, Europe, Japan and the Asia/Pacific
               region to support its global customer base.  The
               Company's common stock trades on the Nasdaq National
               Market under the symbol LRCX.  Lam's World Wide Web
               address is http://www.lamrc.com.