EXHIBIT 21

                        SUBSIDIARIES OF THE REGISTRANT


        SUBSIDIARY                                   STATE OR OTHER
        ----------                             JURISDICTION OF OPERATION
                                               -------------------------

LAM RESEARCH GMBH                       GERMANY
LAM RESEARCH CO., LTD.                  JAPAN (KANAGAWA)
LAM RESEARCH CO., LTD.                  JAPAN (SAITAMA)
LAM RESEARCH (SHANGHAI) CO., LTD        CHINA
LAM RESEARCH LTD.                       UNITED KINGDOM
LAM RESEARCH SARL                       FRANCE
LAM RESEARCH SINGAPORE PTE LTD          SINGAPORE
LRC INTERNATIONAL FSC CORPORATION       BARBADOS
LAM RESEARCH KOREA LIMITED              KOREA
LAM RESEARCH S.R.L.                     ITALY
LAM RESEARCH (ISRAEL) LTD.              ISRAEL
LAM RESEARCH CO., LTD.                  TAIWAN
LAM RESEARCH BV                         NETHERLANDS
MONKOWSKI-RHINE, INCORPORATED           CALIFORNIA


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