Dear IPC,

My company recently was audited by a customer, who insisted that repaired lifted pads and traces constituted immediate MRB action.   The customer insisted that no more than three repaired pads or traces should be allowed on a PCB.  I am unable to locate a specific reference in any of the IPC standards regarding such a requirement.  The test data in IPC-R-700, seems to indicate the relability of the types of repairs tested, but does not infer any standard general or otherwise.  Is there any general test data that shows the effectiveness of a repair with respect to the expected lifespan or Mean Time Between Failures of an electronic assembly?   I suspect that this should be  a customer specific requirement.  

Thanks

Todd Jaco
Quality Manager
Vertex Control Systems Division

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