Slide 138 of 161
Generic PFMEA Detection
- Assume the failure has occurred and then assess the capabilities of all current controls to prevent shipment of the part having this failure mode or defect.
- Random quality control checks would be unlikely to detect the existence of an isolated defect and therefore would result in low to remote detection ranking.
- Sampling done on a statistical basis is a valid detection control.
- A reduction in detection ranking can only be achieved by improving process control system(s).
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