Repairing IC pins
Dwight K. Elvey
dwight.elvey at amd.com
Fri Jul 22 13:01:30 CDT 2005
What kind of package are we talking about?
Plastic can be cut back by about 1/32" to allow connecting
a pin from a scrap IC. ceramic is a little tougher. If the
pin is one of those iron cored pins, you may not be able to
get deep enough to get a non-corroded surface to solder to.
Even ceramics can be carefully solders to and a small amount
of hard epoxy applied to keep the strain off the solder joint
that will be quite small ( epoxy like JB Weld is hard most
clear epoxies are too flexible ).
I have a number of RAM IC that are gradually failing because
they have the iron cored pins. I guess these were cheaper
but electrolysis between the plating and the iron rots them
out from the inside making the pin very fragile.
>From: "Philip Pemberton" <philpem at dsl.pipex.com>
> 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...
>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
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