Good day Technetters,

We have a quantity of bespoke PGA packaged components that originally had
nickel/gold plated leads. The product into which this part is incorporated
has a number of other components that are de-golded and re-tinned prior to
soldering into the PCB. In their infinite wisdom an operator took it upon
themselves to include the bespoke packaged PGA's in the batch of de-golding
for this manufacturing lot.

Unfortunately the PGA part is a socketed item and must NOT be de-golded and
tin/lead dipped. I can deal with the operator - but the parts are more
problematic.

These parts, being bespoke are both rare and have a high value and long lead
time so we have a problem. Is there anyone out there who can advise if the
leads can be reclaimed i.e. stripped back to the base material and replated?
And, if it is possible does anyone have any recommendations as to who would
be able to do this on a sub-contract basis, preferably here in the UK?

FYI the original plating specification for the pins on this part is
Electroless Ni to MIL-QQ-N-290A 100-350 microinches followed by Au to
MIL-G-45204C Type 3, Grade A,
Class 1 50-225 microinches thick. The pins are Kovar and are secured into
the package through glass hermetic seals. The package itself is nickel
plated Kovar.

Any information gratefully received,

Regards,

Peter Barton

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