Rambus and JEDEC have had a difficult past but now that all legal struggles between the firm and JEDEC members are resolved the company has been invited to rejoin the standards group after a nearly 20-year absence.
Rambus will join Jedec Committee 40, which works on server and cloud memory standards. In February 2013, the company demonstrated a 6.4 GHz DRAM interface -- twice the clock rate of today's DDR4 chips.
Sources say there's nothing in the pipeline after DDR4, which is shipping in the latest DRAMs. For years, engineers have worked on 3D stacks of logic and memory, many using Jedec's Wide I/O interface standards, an area where Rambus also has expertise.
"In my opinion, what we should be investing in is both Wide I/O and DDR-like signaling," Kevin Donnelly, general manager of Rambus's memory and interface division, told us.