[sdiy] SMT?

[Terry Michaels]

Message text written by INTERNET:CHoaglin at aol.com
>coincidentally, that's exactly what I'd like to figure out how to 
rework..I've got an industrial PC with an IDE controller chip that's 100
pin 
SQFP, and I'd love to know how to get it off the board and put another one
on 
(without a SMT rework station...) The idea of a heat gun crossed my mind,
but 
I'm not sure it's hot enough.

Anybody got ideas?

Chris
<

Hi Chris:

If you don't need to re-use the chip you are removing, the quickest way to
remove it is as follows.  Take a razor blade or exacto knife and cut all of
the pins off the chip, right at the body.  Next, pluck the chip out,
leaving the pins behind.  Now it is a simple matter to put a blob of solder
down with your iron on the first few pins, and loosen and remove them.  You
can then go all the way around mopping up a few pins at a time, solder wick
is helpful.

Terry Michaels