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Technology Stocks : Advanced Micro Devices - Moderated (AMD)
AMD 252.09-0.3%Jan 29 3:59 PM EST
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To: combjelly who wrote (37559)4/27/2001 11:08:42 AM
From: milo_moraiRead Replies (3) of 275872
 
<font color=green>Process Geeks comment on No. of Palomino's per wafer.

aaamath.com for math reference only.

Pi*(.5D)^2=Area of Circle

Pi=22/7 approx

Pi*100mm*100mm= 31415.9265mm^2 for a 200mm Wafer

Pi*150mm*150mm=70685.8347mm^2 for a 300mm Wafer

That is 225% more surface area by going to 300mm

130nm is 28% smaller than 180nm.

Looking at Palomino on 130nm at 80mm^2 and just doing pure math give us

392 chips on a 200mm wafer

and

883 chips. on a 300mm wafer.

We of course are fitting squares on a circle and need to probable adjust those numbers by 10 to 15% due to edges.

Please comment.

Milo

P.S what is the W.P.W output of Fab 30 today? 2500?
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