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Technology Stocks : Intel Corporation (INTC)
INTC 36.34-0.1%Dec 23 3:59 PM EST
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To: Tenchusatsu who wrote (181303)5/21/2005 11:21:48 PM
From: Elmer Phud  Read Replies (1) of 186894
 
Ten

In the interests of fairness and accuracy, the points Ali raises about process variation are real, but that was never the point. This discussion started when I quoted Intel as saying their 90nm yields were well into the "world class" range. Ali took exception with that statement, claiming that Intel's yields do not reflect the effects of these intra-die parametric variations. Implied in this claim by Ali is that Intel's numbers include an unknown number of defective parts which he believes were not screened by Intel's tests and therefore Intel's yield claims are misleading. The potential defect modes he described are real however they are very much subject to Intel's test screens. The objections he raised and the examples he used were clear indication of a outdated understanding of modern test capability.

So to summarize, the yield challenges Ali raised regarding 90nm processing are real, however his understanding of Intel's (or anyone else's) ability to screen for these failure modes is sorely lacking. The claims Intel made of having "world class yields" are not flawed due to unscreened potential failure mechanisms inherent in 90nm processes as he claimed, because those defect modes are screened for and the yields reflect that.
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