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To: semiconeng who wrote (150260)	11/29/2001 12:52:30 AM
From: Paul Engel	Read Replies (2) \| Respond to of 186894

Semi - Re: "By the way, each SRAM "cell", is 128k, so it is obvious that these are 512k Cache chips. My guess would be P4 Northwood." If it were Northwood (0.13 micron) the die is too big. On 0.18 micron, the Pentium 4 is 217 sq. mm - and the die in the 300 MM wafer photo appear to be about 223 sq. mm. The Northwood should be MUCH smaller. My guess - that die is a Madison ! Paul

To: semiconeng who wrote (150260)	11/29/2001 1:05:57 AM
From: Elmer	Respond to of 186894

By the way, it looks like each chip has a 4 cell section cache. each SRAM "cell", is 128k, so it is obvious that these are 512k Cache chips. My guess would be P4 Northwood. Paul made the point that they are bigger than one would expect so they seem too large to be Northwood but you're a lot closer to this than I am. EP