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To: muzosi who wrote (147393)11/11/2001 1:30:24 PM
From: Elmer  Read Replies (1) | Respond to of 186894
 
not more than doing the same thing for your own fab and certainly less because you have some idea that the process works to begin with :-)

Yes more than doing the same thing with your own fab. Foundrys don't give you the same feedback on their process or etest data, their device characterization data isn't freely available and their process engineers are busy servicing 10 other customers and can't drop everything to respond to your every request. AMD will not get the same service from a foundry. Additionally, if they don't have first silicon yet then there is a significant chance of a real problem functionally or performance wise. Solvable? Sure but it will take time and money. Even if it works it will certainly take several steppings to fix speed paths to achieve acceptable binsplits and identifying them isn't an exact science. It is slow and painful. This will consume additional design and test resources that are already committed to AMD's own inhouse products. A seperate qual will be required to guarantee quality and reliability. Skew runs, infant mortality experiments over thousands of hours. Time and resources spent to enable additional high cost, lower performance, capacity.

Why?

EP