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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Petz who wrote (43702)12/21/1998 2:28:00 AM
From: Paul Engel  Respond to of 1573433
 
Petz - Re: " 60% typical AMD yield = "

Dream on !

With 209 good K6-2 die/wafer, and 4000 wafer starts /week, AMD would be pumping out 11 MILLION CPUs in a 13 week quarter !

They are doing less than HALF that - with probably a LOT NORE than 4000 wafer starts per week.

Your yield calculations are off by a factor of TWO or more.

Paul



To: Petz who wrote (43702)12/21/1998 2:29:00 AM
From: Kevin K. Spurway  Respond to of 1573433
 
Re: "(31400 mm^2 per wafer / 117mm^2) * 90% useful area * 60% typical AMD yield = 145 K6-3 chips per wafer"

The K6-3 is a "squarer" chip than the K6-2, so AMD's number of dice/wafer might not fall as much as you might think--making no assumptions about the accuracy of your initial estimate.

Kevin


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