This document defines consistent methodologies for computation of in-process defects per million opportunities (DPMO) metrics for anyevaluation stage in the assembly process. It is intended for use in measuring in-process assembly steps rather than end product determination.Calculation of completed item DPMO is addressed in IPC-7912. A guide to defect categorization is provided that can serve as a base forsummarizing and reporting in-process defects when used with J-STD-001 and IPC-A-610. It can also be used to develop process stepestimated yield – the expected percentage of assemblies with no defects for a particular process step or combined process steps, based onhistorical defect rates.
- Published:
- 03/01/2002
- ANSI:
- ANSI Approved
- Number of Pages:
- 24
- File Size:
- 1 file , 170 KB
- Product Code(s):
- 9261(D)1, 9261(D)1
- Note:
- This product is unavailable in Russia, Ukraine, Belarus
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