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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Kashish King who wrote (26729)	12/13/1997 4:00:00 PM
From: Kevin K. Spurway	Read Replies (1) \| Respond to of 1574757

Re: "One eight-inch wafer of Intel's tiny 233-Mhz Pentium MMX chips contains an estimated 211 chips worth $125,000. The same size wafer of larger 180-Mhz Cyrix MediaGXs is worth only $8,100, says Micro Design Resources." This is the AMD thread.

To: Kashish King who wrote (26729)	12/14/1997 10:31:00 AM
From: Bill Jackson	Read Replies (1) \| Respond to of 1574757

Rod; When a wafer is made will all the chips that work be of similar speed?, ie does an entire wafer end up as 233 or 200 or 266 etc. Or will there be a full spread of speeds with a 166 next to a 233 etc. Or will there be a fast edge and a slow edge with a gradation between them? I realize that a hefty % will fail outright, but are some of the failures just too slow?, they will only run at <50 MHZ, and are thus failures even as they work at the slower speed?, or are most failures air grit or what other mechanism?. Is there a list of how many chips work from each wafer(an average), and what speeds each one is, and what was the failure mechanism for each failure? I assume they must study these patterns as part of the speed up, has any of that confidential data made its way out for Intel, AMD, Cyrix? Bill

To: Kashish King who wrote (26729)	12/15/1997 6:14:00 PM
From: Petz	Respond to of 1574757

Rod, re:<One eight-inch wafer of Intel's tiny 233-Mhz Pentium MMX chips contains an estimated 211 chips worth $125,000> Please give the URL for Micro Design Resources because this is an inaccurate and ridiculous claim. 1. No wafer of Tillamook chips contains 100% 233 Mhz chips. A more likely mix on a new process technology is 50% 000MHz chips, 30% 200MHz chips and 20% 233MHz chips. There are about 360 potential chips on an 8" wafer (31400 mm X 92% / 80 mm). That would make 72 233 MHz chips and 108 200 MHz chips, NOT the 211 quantity asserted by your post. 2. The price of the 200 MHz chips is only $423, not the $592 claimed by the article. I've never seen the price for the 233 MHz Tillamook quoted. Petz