Repairing IC pins

[Joe R.]

At 06:36 PM 7/22/05 +0100, you wrote:
>Hi folks,
>  Does anyone know of a way to repair IC pins that have been broken off at
>the point where they leave the IC casing? I've got a couple of chips with
>missing pins here and was just wondering if it was possible...

   Yes. it's possible but you need a GOOD termperature controlled soldering
iron and GOOD solder. I use the 2% silver solder from Kester. It has a low
melting point so you won't burn up the IC. I successfully resoldered the
legs to one of the unobtanium ICs on Mike H's VIP. Since it was a socketed
IC and Mike wanted to keep it that way I soldered it in a GOOD IC socket
that used the turned and gold plated sockets/wire wrap pins. I cut the WW
pins to the same length that the IC pins should be and I used the cut off
pins to replace the missing IC legs. The IC is permanently soldered into
the socket but the entire socket and IC can get unplugged from the orginal
socket.

   Joe


>
>Thanks.
>-- 
>Phil.                              | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB,
>philpem at philpem.me.uk              | ViewFinder, 10BaseT Ethernet, 2-slice,
>http://www.philpem.me.uk/          | 48xCD, ARCINv6c IDE, SCSI
>... Anything not nailed down is a cat's toy
>