Barrel cracks in an accelerated failure mode: reliability is a balance between force and strength, and when the force is greater than the strength of the copper and dielectric material, the PCB fails.

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Barrel cracks in an accelerated failure mode: reliability is a balance between force and strength, and when the force is greater than the strength of the copper and dielectric material, the PCB fails.

WHEN EXPOSED TO thermal cycle testing, copper cracks that develop at an ever-increasing rate in the barrel of plated through holes (PTHs) represent an accelerated failure mode. This is a failure mode ...

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