The Production & Quality Control Flow Chart are based on 4-Layer FR-4 Printed Circuits Board.
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Under the procedure of In-Process Quality Control, IPQC, if the material is rejected, it has to be return to former procedure for Re-Work. After rejecting by IPQC twice, the material is SCRAP.
Notes :
IPQC = In Process Quality Control; FQC = Final Quality Control;
FQA = Final Quality Assurance; MRB = Material Review Board