home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!ukma!gatech!usenet.ins.cwru.edu!agate!canuck.Berkeley.EDU!paul
- From: paul@canuck.Berkeley.EDU (Paul Cohen)
- Newsgroups: comp.lsi
- Subject: Re: Impact of minimal transistor width 3 or 4 instead of 2?
- Date: 28 Jan 1993 02:23:37 GMT
- Organization: University of California at Berkeley
- Lines: 23
- Message-ID: <1k7g39$hag@agate.berkeley.edu>
- References: <1k1gi3INNbgs@news.cs.tu-berlin.de>
- NNTP-Posting-Host: canuck.berkeley.edu
- Keywords: CMOS VLSI
-
- In article <1k1gi3INNbgs@news.cs.tu-berlin.de> ronald@cs.tu-berlin.de (Ronald Hindmarsh) writes:
- >
- >I am working on a CMOS-VLSI layout generator for digital circuits.
- >
- >For topological reasons I would like to limit the MINIMUM w/l
- >of a MOS transistor to 3 or 4 (in some physical design rules
- >of a process I have seen a minimal transistor width of 2).
- >
- >Do you think, from your experience, this would have a strong
- >impact on the performance or the power consumption of a circuit?
- >
-
- Depends mostly on the Delta W for the target process or processes.
- I've seen 2 micron processes with Delta W > 2, so if the transistor
- was drawn 2 microns wide, you'd have nothing left! Also, as W
- approaches Delta W, the characteristics really degrade.
-
-
- --
- Paul B. Cohen | paul@aha.com
- Advanced Hardware Architectures, Inc. | paul@ic.berkeley.edu
- P.O Box 9669 | (208) 883-8000 (v)
- Moscow, ID 83843 | (208) 883-8001 (f)
-