ODP: [remove soldered chips] Cheap & Dirty

[Roman Sowa]

I did something like that. Unlike most of sane solder iron users
I like to use transformer soldering gun (is that how it's called?) even for
SMD stuff. This kind which heats up a 1-2mm copper wire when you
press a triger. For desoldering IC I used to make U shaped tip with
'U' bottom as wide as all IC pins. Put some wire under IC pins, and
pull it while heating the pins with 'U' tip. One side of IC is free. IC legs
get a 'little' bended, but that's ok with me. Then the other side.
Well, it works. I unsoldered about 100 ICs this way, but it is good only
for 1-sided pcbs, or 2-sided with big holes. And the PCB looks awfull
afterwards. However, none of desoldered ICs was broken by this.
But now I'd rather desolder using solder sucker - PCB is much
cleaner then.

Roman

> -----Oryginalna wiadomość-----
> Od:	Merlin Zener [SMTP:merlin at ion.com.au]
> Wysłano:	26 maja 1999 06:13
> Do:	synth-diy at mailhost.bpa.nl
> Temat:	Re: [remove soldered chips] Cheap & Dirty
> 
> 
> I remember someone mentioned once an idea where you got a
> piece of wire the same length as the number of pins on one
> side of the IC and connected it to a scope transformer to heat
> it up - you can use a spring loaded IC puller and heat up one
> side, then the other - a few times each side and it's out.
> 
> Anyone done this?
> 
> -- 
> Merlin Zener                            mailto:merlin at ion.com.au
> Piano and Synthesizer              http://www.ion.com.au/~merlin
> 
> "No-one ever went blind from looking on the bright side of life"