22 Jul
2005
22 Jul
'05
6:52 p.m.
Philip Pemberton 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...
Thanks.
I've done it on BIOS chips once or twice. I began by carefully scraping
the case material away at the seam of the IC until a small bit of chip
lead was exposed. After that I placed the chip into a scrap socket and
carefully soldered a donated pin from another chip to the exposed stub.
These were plastic encased chips. I never tried it with a ceramic
package. I suppose you could take a very small diamond burr and a dremel
to grind a bit of the package material away but it probably wouldn't be
an easy task. When soldering the pin, I actually had better luck with
a higher than normal heat on the iron and a very fine tip installed. I
used a Hakko 936 with a new 900M-T1 tip. Probably not proper technique
but it worked for me. That way I seemed to get in and out faster with
minimal heat transfer into the chip. YMMV of course.
James
--
www.blackcube.org The Texas State Home for Wayward and Orphaned Computers