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Date: | Sat, 20 Sep 2008 21:58:54 EDT |
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Nee hao Min Jun,
For electroplated nickel obviously you do not have 'back pad'. The
"brittle failure" may indicate
insufficient solder temperature.
Bring yur cross-sections to my workshop and we discuss the issues on Monday
at IPC Midwest Conference.
Regards,
Werner Engelmaier
可靠性先生
Engelmaier Associates, L.C.
Electronic Packaging, Interconnection and Reliability Consulting
7 Jasmine Run
Ormond Beach, FL 32174 USA
Phone: 386-437-8747, Cell: 386-316-5904
E-mail: [log in to unmask], Website: www.engelmaier.com
**************
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