To: John Walliker who wrote (40029 ) 4/15/2000 6:37:00 PM From: Bilow Respond to
Hi John Walliker; Re tight process &c. The stuff you are referring to is stuff that had to be included in order to improve manufacturability. While it undoubtedly increases yield a lot, it doesn't get the yield up to as high a result as a design that doesn't need it. If SDRAM needed this sort of stuff they would have included it. They didn't need it, so there is no reason to put it in. But RDRAM has to have it. The question is it enough to get the yield to SDRAM levels? If it were, you would think that SDRAM would be designed with that sort of thing, as such a technique could then clearly be used to slightly increase the already high yields for SDRAM. But SDRAM doesn't need it.
