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Article #6975Re: Solder melting point (was Re: How hot can the 486-50 cpu run ?)
From: Duncan McL Barclay
Date: Sun, 23 Aug 1992 12:32
Date: Sun, 23 Aug 1992 12:32
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One point people have seemed to miss is that if the case and leads get very hot (ie hot enough to melt solder) then it is likely that the silicon has got hotter than this, say at a cae temp of 200C a junction temp of 250C. Now as every engineer who uses transisitors, regulators etc (I know these things may be alien to you digital boys :-) ) you reckon that your device will stop working at a junction temp of 150C or a little more. So if you are melting solder with your ics than they arent doing what they ought to... Raggy -- Raggy | God smiles upon the little children, the alcoholics, and u9dmlb@ohm.york.ac.uk | the permanantly stoned. S.King.
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Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!uknet!yorkohm!u9dmlb From: u9dmlb@ohm.york.ac.uk (Duncan McL Barclay) Newsgroups: sci.electronics Subject: Re: Solder melting point (was Re: How hot can the 486-50 cpu run ?) Message-ID: <1992Aug23.123256.2283@ohm.york.ac.uk> Date: 23 Aug 92 12:32:56 GMT References: <17AUG92.09220477@wl.aecl.ca> <THEN.92Aug19211705@vipunen.hut.fi> <1992Aug21.121702.1075@csqx.cs.rhbnc.ac.uk> <1992Aug21.102640.8917@doug.cae.wisc.edu> Organization: Electronics Department, University of York, UK Lines: 14