Author: Tom Kerrigan
Date: 19:08:55 02/10/00
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On February 10, 2000 at 18:11:25, Robert Hyatt wrote: >The basic clock frequency for a chip comes from adding up gate delays in a >path from X to Y inside the chip. If you go too fast, you latch data before >it settles. If you go too slow, you just go too slow. If you ramp up the >clock beyond spec, you _must_ do something to speed up the gate delays. One >way is to up Vcc. That ups the heat. Which kills the chip lifetime. You >can do various tricks to conduct the heat away (ie kryo approach). But no >matter what you do, you can't make the gates function much faster. In some This is not correct. Gates function faster at lower temperatures. As I said in a previous post, I wouldn't be surprised if a 1GHz Athlon @ -40C is more stable than a 750MHz Athlon @ 100C. -Tom
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