If you have solder joint failures, which are "left with a bare lead with no
solder on it", that means you never had a solder joint in the first place.
You clearly had no wetting, for whatever reason. Corrosion (after soldering)
is not the problem.

Werner Engelmaier
Engelmaier Associates, L.C.
Electronic Packaging, Interconnection and Reliability Consulting
7 Jasmine Run
Ormond Beach, FL  32174  USA
Phone: 904-437-8747, Fax: 904-437-8737
E-mail: [log in to unmask]

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