Article View: sci.electronics
Article #15438Re: Handling CMOS
From: jonathan skean
Date: Sun, 27 Dec 1992 09:10
Date: Sun, 27 Dec 1992 09:10
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kcarver@dante.nmsu.edu (Kenneth Carver) writes: >4000 series CMOS is well-protected and requires few if any special >handling precautions. If you are not drawing an arc when you touch >these chips, you should be okay. You might add: so long as you are handling modern 4xxxB ic's. If you get hold of some old pieces with no suffix you will find that they are the source of CMOS's delicate reputation. BTW, I worked briefly at a company best left unnamed where some of the techs routinely swapped CMOS chips in live circuits. They seemed to get by with this, at least in the short term. I've always thought that a junction could be damaged without failing immediately so this seemed foolish to me. -- Jonathan Skean usenet: JSKEAN@UNL.EDU 502 Hamilton Hall bitnet: JSKEAN%UNL.EDU@UNLVAX1 University of Nebraska voice: (402)472-2684 Lincoln, NE 68588-0304 USA fax: (402)472-9402
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Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!crcnis1.unl.edu!unlinfo!jskean From: jskean@unlinfo.unl.edu (jonathan skean) Newsgroups: sci.electronics Subject: Re: Handling CMOS Date: 27 Dec 1992 09:10:55 GMT Organization: University of Nebraska--Lincoln Lines: 18 Distribution: all Message-ID: <1hjruvINNoj1@crcnis1.unl.edu> References: <1992Dec14.120707.13760@eng.cam.ac.uk> <JON_SREE.92Dec19224851@world.std.com> <Dec20.180350.29543@yuma.ACNS.ColoState.EDU> <1992Dec23.043736.2684@nmsu.edu> NNTP-Posting-Host: unlinfo.unl.edu