IPC 7912A


End-Item DPMO for Printed

Revision A

Published by Publication Date Number of Pages
IPC 01/01/2004 24
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IPC 7912, Revision A – End-Item DPMO for Printed

This document is intended to define standardmethods for the categorization of defects related to electronicprinted board assemblies (PBAs). This documentwill provide consistent methodologies for calculating thefollowing benchmark indices: Defects Per Million Opportunities Index (DPMO Index) Component DPMO Placement DPMO Termination DPMOAssembly DPMO

DPMO as applied in IPC 7912 is a measurement takenon completed product. Only those defects detected or discoveredat an assemblys completed product evaluation areto be included in the calculations. A companion standard,IPC 9261 In-Process DPMO and Estimated Yield for PWAsis used to develop DPMO indices for measuring in-processassembly steps.

It is recognized that a manufacturing index can be obtainedthrough a variety of methods. Overall Manufacturing Index(OMI) is explained in detail in Appendix B.

IPC 7912 is intended to be used in conjunction withassembly acceptance standards such as IPC J STD 001 or IPC A 610. This document is for benchmarking andis NOT intended to describe how to track or otherwise logdefect types or drive corrective action. In-process DPMO isoutside the scope of this document.

Product Details

ANSI Approved
Number of Pages:
File Size:
1 file , 250 KB
Product Code(s):
7912A(D)1, 7912A(D)1
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