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To: mishedlo who wrote (56794)	10/6/2000 10:48:14 PM
From: Dan3	Respond to of 93625

Re: how do you know what the yields are. Post a link please. I don't - Intel is secretive about its yields to a degree that puts DOE to shame. Literally. But AMD and some of the RAM FAB companies are less secretive. Intel strongly hints that its yields are superior to industry norms, but that's about as far as they'll go. We've seen from the availability of their chips that their production process certainly isn't perfect. Like every other company in this business, they sometimes run into rough spots with yields. Non leading edge RAM FABs get close to 100% yields. AMD has hinted that it gets near 60% in Austin and near 70% in Dresden on leading edge die circa 100mm2. Both Intel and AMD obviously (as seen by availability) have lower yields on initial runs of chips and lower yields on larger chips. So on a large, leading edge chip, Intel is probably going to be delighted with 50% yields. A post claiming a schedule breaking disaster due to such a chip yielding 70% makes no sense. If you follow EE Times and EBN and the CC's from the companies for a couple of years, these bits and pieces start to come together enough to give a general picture of what's a reasonable assumption. Dan