Does anyone know if there are specs for solder joint strength on gull wing 
leaded parts like QFPs?  Are there standard test methods for how to measure 
joint strength on these types of leads (destructive or non-destructive)?  I am 
interested mainly in finding the strength on the leads of 20 mil and 25 mil 
parts.  I am currently doing some "pull tests" and would like to see if there 
is industry data out there to compare my results and methods with.  Any help 
would be appreciated.

Thanks,
Andrea Shurtz
Lexmark Contract Manufacturing

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