Re: de-soldering IC's

If the circuit board has solder pads on both sides then it is very difficult
to remove with the braid method. If the pads are on one side only then you
need to make sure that their is no solder between the pins and the holes.
Hope this helps.


"Dave" <dspear99ca@xxxxxxxxxxxxxxxx> wrote in message
news:czDPf.22828$Ui.9828@xxxxxxxxxxx
First off, I haven't done much work with IC's. Last night I wanted to
replace a 20-pin DIP IC. I read various news posts on the subject, bought
myself a desoldering vacuum pump (hand operated squeeze-bulb type),
replaced
my aging desoldering braid (good brand, got from digi-key on good advice).

So I heat up my iron, apply the braid, ZOOP, up comes the solder into the
braid. HEY, I says to myself, this ain't so hard. Repeat on the other 19
pins. Let things cool down for a minute or so, try to jiggle the IC
loose.
Uh-uh. No way. Ain't gonna' budge. There seemed to be enough residual
solder on the pins to keep them from loosening.

To make a long story short, I used brute force to remove the body of the
IC
and heated and removed the pins one by one with a pair of tweezers. The I
heated each hole and shoved a 22ga wire through to clean out the solder.
All the time I was doing this I kept thinking "I am pretty sure the guy at
my local electronics shop does not do this". So, the story has a happy
ending, the new IC is installed.

What is the proper method for removing an IC? Should the solder braid
have
taken up enough solder to remove the chip? Am I using it wrong?

Thanks

Dave




.

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