Rambus plans to appeal the ruling, which follows the same judge throwing out the final three of 57 infringement charges by the company on Friday. US District Judge Robert E. Payne ruled that Rambus improperly obtained patents on chip designs that were being developed by JEDEC (Joint Electron Device Engineering Council), the semiconductor standardisation group, Rambus said in a statement.
Rambus' Chief Executive Officer, Geoff Tate said in the statement that although he believes Infineon's charges are "completely baseless," rules pertaining to JEDEC "have been shown to be confusing, conflicting, poorly communicated and generally not complied with by other JEDEC members."
Rambus had taken Infineon to court, claiming that Infineon had infringed upon its design patents in manufacturing SDRAM (synchronous dynamic random access memory) and DDR SDRAM (double data-rate SDRAM). Rambus had made deals with other chipmakers, while Infineon, Micron Technology, and South Korea's Hynix Semiconductor have held out on paying royalties to the company.