Hi Fulton,
Solder joint reliability can NOT be determined from 'pull and cross-section
tests', they can however give an indication of poor quality, specifically
poor wetting. This poor quality of course would lead to early failures, but
indication of good quality is only a necessary, but not sufficient
requirement for solder joint reliability.

Werner Engelmaier
Engelmaier Associates, Inc.
Electronic Packaging, Interconnection and Reliability Consulting
23 Gunther Street
Mendham, NJ  07945  USA
Phone & Fax: 973-543-2747
E-mail: [log in to unmask]

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