Hi Shelia,
You may also find fractured PTH/PTV copper barrels or innerlayer separation
(post sparation).
Merry Christmas,
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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