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Week 40 Report

 

Inspection Accept

59%

 

Electrical Testing Pass

82%

This Week in The Lab...
Weeks 40 Summary
Substandard Part Listing
                                 
                                   
White Horse Laboratories' Quality Report
Week 40, 2013

Weeks 40 Summary                                                                                                          

  

Perhaps Electrical Testing yields were embarrassed by their previous plunge and are trying to make amends. Lot yields climbed again to 82% in Week 40 from 71% in Week 39.

 

There were five lots with higher than a 5% failure rate; however, three of those five had 100% failures, indicating outright counterfeit devices.

 

Inspection took a minor dip to 59% in Week 40, down from Week 39's 61%.

Week 40 Quality Report

 

Substandard Part Listing

Semikron SKKH57/22E - 100% failure for low Vgt and Igt.

 

Freescale MRF6S27050HR3 (Date Code 1043) - 100% Failure Rate -

High Vds(on).
 

Semikron SKKH57/22E (Date Code 1223) - 100% Failure Rate - High Low Vgt and Igt.

 

Cypress Semiconductor  CY7C263-35WMB (Date Code 0532) - 44% Failure Rate - blank-check error.

 

ST Microelectronics VN770KTR-E(Date Code not marked or labeled) -13% Failure Rate - low output and high supply current.

 

IMP IMP528ESA/T (Date Code 1321) - 100% Failure Rate - low output switching.

 

Notes:

1. Statistics are calculated as a percentage of all lots dis-positioned within the given time period.

2. "Accept" is defined as customer acceptance of report device condition.

3. "Pass" is defined as meeting electrical parameters defined by the agreed upon test plan.

We hope you find this report informative and usefull for your organization.

 

All the best,

Mark A. Rinehart
White Horse Laboratories