Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Sn Plating Looks Like Zn After Autoclave Test
September 20, 2008
We submitted some Microelectronic samples to AutoClave testing (96 Hs.) and when we removed the samples an oxidation formed on the surface of the leads and the body of the parts that looks like Zn plating! Has anyone observed this condition before, and can you tell me what was responsible?
Failure Analysis - Simi Valley, California, USA
Let's dip out a 4 liter beaker [beakers on eBay or Amazon [affil links] , dummy out the copper, carbon treat with powdered activated sulfur free carbon, then plate a part in the beaker and see if it corrodes in the autoclave. Let us know.
Robert H Probert
Robert H Probert Technical Services
Garner, North Carolina
September 22, 2008
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