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To: James Yegerlehner who wrote (4754)	3/5/1998 3:22:00 PM
From: Petz	Read Replies (4) \| Respond to of 6843

James, YES, YES, YES, YES, YES, AMD 0.25 yields are at 47%!!!!! This is based on Kumar's numbers, which say there are 160 good CPU's out of a potential 340. An 8" wafer has radius of 100mm, area of 31400 mm^2 Die size for K6 0.35 is 162 mm^2. Max dice are 194, but really quite a bit less because we're fitting square pegs in round holes. Die size for K6 0.25 is 68 mm^2. Max dice are 461, but could be as low as 340 if it was re-laid out to be a little bigger. Die size for K6-3D is 81 mm^2. Max dice are 387. With wasted space on outside and scribe width between dice, this is totally consistent with Kumar's number of 340. So we can't be sure WHICH 0.25 micron CPU is being churned out (or a mixture of the two), but the 47% number is definitely for 0.25 micron chips. The fact that this info comes from Kumar is astounding and must be based on brand new information because this blabbermouth's initial opinion on the IBM deal was that it was to bail out AMD's failed manufacturing. I wouldn't trust anything he says, but I received private email two days ago that confirms the 50% number. Petz