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Arfa Daily

"PeterD" wrote in message
...
On Wed, 19 Nov 2008 10:31:57 GMT,
(jamma-plusser) wrote:

I have a board with a large QFP surface mount IC - something had been
smashed into a few pins of this IC, so bending them and causing them
to short against each other. Managed to straighten them all, except
for one which broke right against the main body of the chip.

Argh!

I can get just about get a connection to the infinitessimally small
pin stub using some very fine wire, but the connection is erratic to
say the least.

Have tried gently carving back some of the plastic around where the
pin stub enters the body of the chip to expose more to solder onto,
but no luck there really.

The pin spacing is pretty tight, so making things even more awkward.

Any tips please on how to salvage this?

Thanks

Have any friends who are *good* dentists? If so see if one of them can
use their fine tools to eat away a bit fo the plastic. They will need
to understand what they are doing, and how much you want to remove but
I'm sure it can be done.

Are you able to check what the damaged pin does ? If you are incredibly
lucky, it might just be common with another pin or just have an internal
resistor or diode to another pin. Sod's Law says that you won't be that
lucky, but you never know - the gods of electronic accidents might just be
smiling in your direction today. They certainly weren't looking my way when
I had a flash-bang encounter with a Pioneer amp that I had just finished
working on ... :-(

Arfa