A Delaware judge has lifted a stay in an ongoing lawsuit between Rambus and Micron Technologies, allowing Rambus to file new claims and to proceed in its patent infringement suit against the Boise, Idaho, memory chip maker.
The two companies have been engaged in the dispute since 2000, but the case was stayed by the court in 2002 pending a related appeals court decision. Now, with the case proceeding, Rambus has filed new claims that cover Micron's newer DDR2 (double data rate, second generation) and GDDR (graphics double data rate) products, the company said in a statement.
The case is being tried in the U.S. District Court for the District of Delaware.
Rambus designs technology that lets chips communicate with each other, but the company is best known for its legal maneuverings.
The Californian company maintains that it holds patents to technology found within the SDRAM (synchronous dynamic RAM) memory chips used by the majority of the world's PCs. Micron Technologies is one of several companies, including Hynix Semiconductor, Samsung Electronics and Infineon Technologies, that Rambus has sued in connection with these patent claims.
Last year the Infineon case was settled with Infineon agreeing to pay Rambus as much as US$150 million in licensing fees.