Hi Robert,
You provide precious little info on your problem.
When you say "lifted lands" what do you mean? Land rotation?
How thick the PCB?
On the basis of what have"Thermal, copper elongation and material factors
have been removed from the equation as non-influences"?
Is this a PTH or a PTV?
What is the history?
If it is a PTV, what kind of component lead is in the PTV?
What kind of soldering processes have been used?

Werner Engelmaier
Engelmaier Associates, L.C.
Electronic Packaging, Interconnection and Reliability Consulting
7 Jasmine Run
Ormond Beach, FL  32174  USA
Phone: 386-437-8747, Fax: 386-437-8737
E-mail: [log in to unmask], Website: www.engelmaier.com

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