AMENDMENT NO. 4 TO
SEMICONDUCTOR TECHNOLOGY AGREEMENT
This Amendment No. 4 (the "Amendment") to the parties' Semiconductor Technology Agreement is entered into
as of May 21, 1997 ("Effective Date") by and between Rambus Inc., a Delaware corporation with principal
offices at 2465 Latham Street, Mountain View, California 94040, U.S.A. ("Rambus") and LG Semicon Co., Ltd.
(formerly known as GoldStar Electron Co., Ltd.), a Korean corporation with principal offices at 1, Hyangjeong-
dong, Hungduk-gu, Cheongju-si, Chungcheongbuk-do, 361-480 Korea ("LGS").
A. In 1994 the parties entered into a Semiconductor Technology Agreement (as previously restated and
amended, the "License Agreement");
B. The parties entered into Amendment No. 2 dated March 20, 1996 to the License Agreement to provide for
the development by Rambus of a Rambus ASIC cell for LGS's 0.35 micron semiconductor manufacturing
C. The parties desire to further amend the License Agreement to include the development by Rambus of a
Rambus ASIC cell for LGS's 70 angstrom 0.35 micron semiconductor manufacturing process (the "Modified
RAC") as defined hereinbelow, on the terms and conditions set forth herein; and
WHEREAS, the parties desire to provide for characterization by Rambus of the Modified RAC.
NOW, THEREFORE, the parties agree that the License Agreement is further amended to include the following:
1. Definitions and Related Matters.
Capitalized terms used in this Amendment shall have the meaning specified therefor in the License Agreement or
Amendment No. 2, as applicable, and, in addition, the following terms shall have the meaning set forth below:
1.1 "LGS Process Technology" means the 70 angstrom 0.35 micron process technology adopted by LGS.
1.2 "Modified RAC" means the ASIC cell based on the design of the New RAC (as defined in Amendment No.
2) as modified for the LGS Process Technology by Rambus in accordance with this Amendment.
1.3 "Modified RAC Deliverables" means the items specified in Exhibit