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Politics : Formerly About Advanced Micro Devices
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To: Yougang Xiao who wrote (46780)1/20/1999 11:40:00 PM
From: RDM  Read Replies (1) of 1572857
 
I am not aware any risks inherent in mixing microprocessor types on the same fab. Does anyone on this thread know of such a risk? It is a common practice to mix many different parts in the same fab. There are different fabrication processes (diffferent recipes).

Usually there are some restrictions on the different processes that may be used on one line. DRAM will not be normally produced on a microprocessor line for example.

However, I would guess that the K6-2, K6-3 and K7 would all use the same process (recipe). Different speed ranges, or voltages, or mobile version microprocessors might use slightly tweaked processes for some parameter, but these variations would be minor.

Short of hurricane, fire, explosion, or those kind of very rare events I know of know semiconductor unique risk of using the same fab for these parts.
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