Rambus To Go Into Fabless Chip Production, Announces RB26 DDR4 DIMM Chipset
 

Since its inception in 1990, DRAM technology company Rambus’s business model has been an unusual one, focused on the creation and licensing of technology as opposed to selling finished chips. It’s this emphasis on technology design and licensing that has led to Rambus holding a number of major DRAM patents, and also their resulting infamous legal fights with DRAM manufacturers over DDR technology. That said, with their legal battles settled earlier this decade we haven’t heard much from Rambus in the DRAM space as of late; after a run in the PC space with RDRAM and a design win in the Playstation 3 for XDR DRAM, the company has seen little success licensing further DRAM designs.

http://www.anandtech.com/show/9534/r...4-dimm-chipset