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To: Jeff Fox who wrote (51939)4/2/1998 3:12:00 PM
From: VinWood  Read Replies (1) | Respond to of 186894
 
But low quality does not automatically mean low reliability. AMD can ship reliable parts with proper screening. How? - it's called burn in.

Burn-in is not meant to be a screening process. While it does eliminate the infant mortalities it is meant as a reliability predictor for the entire lot. Using correct LTPD numbers a lot should be rejected in its entirety for a certain percentage of failures.
The other problem is, burn-in is the most abused process in the industry. In fact Nat Semi has been fined several times in the past,once that I am intimately familiar with for $6 mil., for falsifying burn-in data.