🚀 go-pugleaf

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.

-- 
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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.