Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!usc!apple!oliveb!mipos3!omepd!toms From: toms@omews44.intel.com (Tom Shott) Newsgroups: comp.arch Subject: Re: What CMOS cannot do (Re: Surges) Message-ID: Date: 28 Nov 89 15:49:53 GMT References: <7000@pt.cs.cmu.edu> <31547@hal.mips.COM> <48393@bbn.COM> <7032@pt.cs.cmu.edu> <19882@weitek.WEITEK.COM> Sender: news@omepd.UUCP Organization: OME, INTeL Corp., Hillsboro, Oregon Lines: 20 In-reply-to: weaver@weitek.WEITEK.COM's message of 20 Nov 89 18:35:10 GMT Another advantage to BiCMOS over those listed is: 5. Schottky clamp diodes (reduced ringing). I have heard system designers say they would sell their soul for a process that would just allow Schottky clamp diodes. You can design a CMOS driver w/ a low voltage swing, controlled edge rates and fairly high drive (not as high as BiCMOS but..). No question it burns area, but then area is cheap (cheaper then a new process, any body know how many more steps a BiCMOS process has over a CMOS process ? Steps cost money and reduce yield). -- ----------------------------------------------------------------------------- Tom Shott INTeL, 2111 NE 25th Ave., Hillsboro, OR 97123, (503) 696-4520 toms@omews44.intel.com OR toms%omews44.intel.com@csnet.relay.com INTeL.. Designers of the 960 Superscalar uP and other uP's Brought to you by Super Global Mega Corp .com