Rambus Announces Supreme Court Denial of Infineon Petition

October 6, 2003 - Rambus Inc. (Nasdaq:RMBS), a leading provider of chip-to-chip interface products and services, today announced that the United States Supreme Court has issued a ruling denying Infineon Technologies's (NYSE:IFX) petition for a writ of certiorari in the litigation between Infineon and Rambus.

This ruling, announced by the Supreme Court today, means that Infineon has exhausted all possible avenues of appeal from the January 29, 2003 ruling of the Court of Appeals for the Federal Circuit. That Federal Circuit ruling favored Rambus. It confirmed the breadth of Rambus's patent claims as asserted against Infineon. It also rejected Infineon's fraud counterclaims, concluding that Rambus had not been shown to have violated the rules of an industry standard setting organization called JEDEC and that those rules showed a "staggering lack of defining details." The Federal Circuit also concluded that Rambus did not have applications or patents that read on any JEDEC standard during the relevant time.

"Today's Supreme Court ruling is another positive step forward for Rambus," said John Danforth, senior vice president and general counsel at Rambus. "The Court's ruling today clears the way for our infringement case against Infineon. That trial will focus on Rambus patents whose breadth has now been defined by the Federal Circuit. While we welcome any opportunity to resolve matters amicably rather than through the courts, we are pleased to have these JEDEC-related counterclaims behind us and we remain committed to taking the necessary steps to protect our intellectual property."

About Rambus Inc.
Rambus is one of the world'?s leading providers of chip-to-chip interface products and services. The company's breakthrough technology and engineering expertise have helped leading chip and system companies to solve their challenging I/O problems and bring industry-leading products to market. Rambus's interface solutions can be found in numerous computing, consumer electronic and networking products. Additional information about the company is available at www.rambus.com.