Automotive Semiconductors and Functional Safety

Which correctly describes PPAP (Production Part Approval Process) used in the automotive industry?

  1. AA procedure for demonstrating to the customer, with documents and samples, that parts made with the same processes, equipment and conditions as mass production meet requirements, and obtaining approval
  2. BA procedure for filing new circuit ideas as patents at the prototype stage to secure the rights
  3. CA procedure for compiling the number of field failures and the failure rate every month after shipment and reporting them to the customer together with an improvement plan
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Answer: A. A procedure for demonstrating to the customer, with documents and samples, that parts made with the same processes, equipment and conditions as mass production meet requirements, and obtaining approval

PPAP (Production Part Approval Process) is a procedure in which a supplier, before starting mass production, demonstrates that parts made with the same processes, equipment and conditions as mass production meet customer requirements and can be produced consistently, and obtains approval. Submissions include design records, process FMEA, control plan, dimensional and characteristic measurement results, process capability studies and samples. The approved process becomes the baseline for mass production, so changing the process later requires notifying the customer. It is separate from patent filing or field failure reporting.

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