Author: William H Rogers
Date: 12:40:14 12/03/99
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On December 03, 1999 at 00:35:54, David Blackman wrote: >On December 02, 1999 at 04:54:52, Tom Kerrigan wrote: > >>I'm not an expert, but I think metals on chips are already almost ideal. The way >>to make a chip faster would be to use substrates that allow channels to form >>faster. Superconductors wouldn't help with this. >> >>Notice that IBM is using a copper interconnect process for G4s. Copper is almost >>twice as conductive as aluminum, but they're not getting very high clock speeds. >> >>Better conductors have lower resistance, which does mean less heat... >> >>-Tom > >These days on most CPUs the "wires" take up more chip space, more power, produce >more wast heat, and cause more of the delay time, than the transistors. >Superconductors would be a huge breakthrough if they could figure out how to >make them as cheap, reliable, and convenient as the metal layers used now. But >as far as i know no-one is close to doing that, and there are probably not even >any major development efforts trying any more. I read somewhere that some company has a complete PC on one chip. The mother board was used only to attach the perifials(?), IO ports, disk drives, key board, etc.. Who knows? Bill
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