Trial Court Denies Infineon Request for Stay of Rambus Patent Claim Trial

Number of Claims to be Tried Also Limited by Trial Court

- Rambus Inc. (Nasdaq: RMBS), a leading developer of chip-to-chip interface products and services, today announced that in its lawsuit against Infineon Technologies AG (NYSE: IFX) the United States District Court for the Eastern District of Virginia issued several rulings today. Included among them was the denial of a request by Infineon to stay the trial pending rulings by the Federal Trade Commission (FTC) in its own complaint against Rambus.

Rambus' patent infringement trial against Infineon is now set to begin on May 10, 2004.

In other rulings from the bench, the District Court limited to four the number of patent claims to be tried against Infineon, ruling that other claims were not the subject of Rambus' successful appeal decided by the Court of Appeals for the Federal Circuit on January 29, 2003.

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.