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                                                                    EXHIBIT 99.7
 
                  CONSENT OF PERSON ABOUT TO BECOME A DIRECTOR
 
  I, Richard J. Elkus, Jr., hereby consent to the use, in the Registration
Statement on Form S-4 of Lam Research Corporation (the "Company") to which this
consent is filed as an exhibit and the Joint Proxy Statement/Prospectus
included therein, of my name as a person about to become a director of the
Company.
 
                                                 /s/ Richard J. Elkus, Jr.
                                          _____________________________________
                                                  RICHARD J. ELKUS, JR.
 
July 1, 1997
