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IPC - IPC Standard - IPC-9261

In-Process DPMO and Estimated Yield for PCAs



File Format PDF  
Price $35  
Rev A  
Language English    
Number of page 12  
Date of Publication 2006  

Now updated to align with IPC-7912A for end item DPMO, this document defines consistent methodologies for computation of in-process defects per million opportunities (DPMO) metrics for any evaluation 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-7912A. A guide to defect categorization is provided that can serve as a base for summarizing and reporting in-process defects when used with J-STD-001 and IPC-A-610. It can also be used to develop process step estimated yield - the expected percentage of assemblies with no defects for a particular process step or combined process steps, based on historical defect rates. 12 pages. Released October 2006.

IPC-9261A Download/View table of contents


IPC-A-610  IPC-A-600 IPC-A-620 IPC-7711/7721