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Hi Paul - I forgot one issue with the palladium that you need to be
aware of with the palladium - plating finish thickness. Texas
Instruments currently has been supplying Pd finished parts to the
industry with a 3 microinch thick finish of Pd. This thickness does
not seem to be a problem but if your vendor is going to furnish a
thicker Pd finish I would conduct some Scanning Electron Microscopy to
insure that the solder joint microstructure is acceptable and conduct
some thermal cycle testing to insure that the mechanical response of
the solder joint is acceptable.
Dave Hillman
Rockwell Collins
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Subject: Palladium finish
Author: [log in to unmask] at ccmgw1
Date: 5/27/96 3:15 PM
We have a vendor who is changing the metallizations of its components
to palladium from tin/lead.
Has anyone had problems with this?
Are there problems with no-clean fluxes?
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