Suspect cause "
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Case1. Occurred from part misaligment from SMT process then, part move with tension of solder while solder melt will occurred lift component.
" Case2. Occurred from solder clogging in stencil aperture effect to no good of solder release.
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Case3. Occurred from solderability on copper surface may decrease when entek expire.
Escape cause " : Ass'y inspectors and final inspectors have low detection capability effect to defective escaped to customer.
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