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Technology Stocks : Advanced Micro Devices - Moderated (AMD)
AMD 214.90-0.1%3:59 PM EST
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To: jspeed who wrote (237237)7/26/2007 1:14:27 PM
From: wbmwRead Replies (5) of 275872
 
Jspeed - AMD Barcelona Yields

Nice catch. They claim <0.50 defect/cm2. Let's just call it 0.45 to be generous.

Use this calculator, which has been the standard for us:

icknowledge.com

Barcelona is 283mm^2, so 16.823 on a side. Use 300mm wafers, and 0.45 defect/cm2:

AMD's yields are 32%. Aweful, and yet this is above their usual past yields, according to slide 159. Elmer has been right all along.

Thanks, AMD, for this valuable piece of data.
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