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- Newsgroups: sci.electronics
- Path: sparky!uunet!panther!mothost!white!rtsg.mot.com!lido16!wiegand
- From: wiegand@rtsg.mot.com (Robert Wiegand)
- Subject: Re: Heat gun pcb cannabalization
- Message-ID: <wiegand.728060445@lido16>
- Keywords: Heat gun, charring, lack_of_skill, try_again_maybe
- Sender: news@rtsg.mot.com
- Nntp-Posting-Host: lido16
- Reply-To: motcid!wiegand@uunet.uu.net
- Organization: Motorola Inc., Cellular Infrastructure Group
- References: <15JAN199321554385@utarlg.uta.edu> <1jebh6INNie7@clover.csv.warwick.ac.uk> <651@rins.ryukoku.ac.jp> <C1EuMK.49w@sci.kun.nl>
- Date: Tue, 26 Jan 1993 15:00:45 GMT
- Lines: 31
-
- pieterh@sci.kun.nl (Peter Herweijer) writes:
-
- >In <651@rins.ryukoku.ac.jp> will@rins.ryukoku.ac.jp (William Reiken) writes:
-
- >>In article <1jebh6INNie7@clover.csv.warwick.ac.uk>, cstadbg@csv.warwick.ac.uk (Mr M J Brown) writes:
- >>>only if you heat ALL the legs. I have also managed to strip boards previously
- >>>to getting the Black and Decker with a butane blowtorch. It is a) a question
- >>>of practice, and b) remembering it is the PARTS you want to save and not the
- >>>board they are on. This will be pretty much damaged by large scale desoldering
- >>>
-
- >> I was told that microchips will be damaged if you use this approach.
- >>Does it really matter?
- >>
-
- >Using the very same method, I have successfully stripped a bunch of
- >computer boards of their components, including Z80 CPU's and 8255 PIO's.
- >Everything worked fine. I did it with a friend, he heated the PCB, I
- >pulled out the components and immediately threw them in a bucket of
- >water to cool them off, but I don't know if that's necessary. One tip
- >though: do it outside. The fumes stink and are probably not healthy.
-
- Actually, I would expect that throwing the parts into cold water
- could possibly damage them. The sudden temp. change could crack the
- die or break one of the lead bonds.
-
- --
- ------------------------------------------------------------------------------
- Robert Wiegand - Motorola Inc.
- motcid!wiegand@uunet.uu.net uunet!motcid!wiegand
- Disclamer: I didn't do it - I was somewhere else at the time.
-