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Technology Stocks : CYRIX / NSM

NSM 18.27

0.0%

Jul 31 5:00 PM EST

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To: Steve Porter who wrote (32335)	5/16/1999 4:45:00 PM
From: kash johal	Read Replies (2) of 33344

Steve, Re:"Electrical misbehavior I'll buy, but not timing and power consumption. These can be very well estimated today. You know this, you design chips man ;).." You obviously don't know too much about the complexity of deep sub-micron chips. The design tools are largely useless except for logic/functional verification. It is pretty much impossible to model a single path ACCURATELY let alone hundreds of thousands on complex chips. Just the complexity of doing a 3d extraction of of all the RC's on a path are next to impossible. In addition these RC's are active so their valuse vary depending upon the signal voltage. In addition x- coupling between 5 or 6 layers of metal cause uncertainty. The good news for most chips (not CPU's) is that the silicon performance exceeds most requirements so one can focus on a limited number of critical paths and if synchronous design techniques are utilized one has a reasonable probability of first time success. Regards, Kash

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