Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!caip!clyde!watmath!watnot!water!hmtriese From: hmtriese@water.UUCP (Marc Riese) Newsgroups: net.arch Subject: GaAs Message-ID: <507@water.UUCP> Date: Sat, 13-Sep-86 12:45:00 EDT Article-I.D.: water.507 Posted: Sat Sep 13 12:45:00 1986 Date-Received: Sun, 14-Sep-86 03:47:26 EDT Distribution: net Organization: U of Waterloo, Ontario Lines: 29 >> From: jeff@gatech.CSNET (Jeff Lee) >> Subject: Re: VERY LARGE main memories >> Message-ID: <4496@gatech.CSNET> >> >> >Then there's GaAs... So fast you can spend a lot of time converting >> >to a different logic family. I like GaAs. Expensive, though. >> >> I know absolutely nothing about GaAs except that Seymour is planning >> to do his cray-3 in it. What are the speeds and costs of some "typical" >> GaAs chips? What sort of power do they dissipate? What is the >> difficulty in processing GaAs as opposed to silicon? Also, is anybody >> doing anything with InP (Indium Phosphide) yet? > > From: williams@kirk.dec.com (John Williams DTN 223-2163) > Subject: GaAs > Message-ID: <5300@decwrl.DEC.COM> > > GaAs is 10-100 times faster than Silicon. Part of the problem with > manufacturing it is that the covalent bonds between atoms is much > weaker.( part of the reason it's so much faster ) As you put it through > implantation, the crystal structure is broken. When you go to anneal it, > there is a greater amount of diffusion. There was an article about GaAs in IEEE Spectrum. I believe it was the December, '84 issue, or some issue close to then. -- USENET: {ihnp4,allegra,decvax,utzoo,utcsri}!watmath!water!hmtriese CSNET : hmtriese%water@waterloo.csnet ARPA : hmtriese%water%waterloo.csnet@csnet-relay.arpa