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Weeks 31-32

Report

 

Inspection Accept

31%

 

Electrical Testing Pass

57%

This Week in The Lab...
Weeks 29-30 Summary
Substandard Part Listing
Week 31&32                            
                                   
White Horse Laboratories' Quality Report
Weeks 31-32, 2013

Weeks 31-32 Summary                                                                                                          

  

Electrical Testing yields suffered two more declines after reaching 79% in Week 30, dipping to 73% in Week 31 and then plunging to 41% in Week 32. Period average remained little changed at 57% compared to the previous period's mark of 58%. What a rollercoaster!

 

Eleven different devices had a high failure rate in Electrical Testing; however, none of them had a 100% failure rate.

 

Inspection results also scraped the bottom of the chart after trying to recover the previous three weeks, posting a 27% acceptance rate in Week 31 and 36% in Week 32, averaging just 31% for the period.

MSS1P3-M3 Higher Reverse Current
Vishay MSS1P3-M3 High Reverse Current, Ir

Weeks 31-32 Quality Report

 

Substandard Part Listing

 

Xilinx XC6VLX130T-1FFG1156C (Date Code 1235) - 12% Failure Rate - Program error.

 

Infineon ADM6999X-A2-T-1-XP (Date Code not marked or labeled) - 31% Failure Rate - Shorted pins and bad protection diodes.

 

Ali M6117D (Date Codes 0703, 0711, 0716, 0725, 0730, and 0737) -7% Failure Rate - Open, shorted pins and bad protective diodes.

 

Vishay MSS1P3-M3/89A (Date Code not marked or labeled) -89% Failure Rate - High Ir.

 

Xilinx XC3042A-7PQ100I (Date Code 1105) - 25% Failure Rate - poor pin contact with the test socket from bent pins and heavy contamination.

 

Xilinx XC9572-10PC84I (Date Codes 0218 and 0236) -15% Failure Rate - Program error and wrong ID. 

 

Infineon CF739 (Date Code not marked or labeled) - 7% Failure Rate - Breakdown and gate 2 open.

   

STMicroelectronics ST72T141K2M6 (Date Code not marked or labeled) - 6% Failure Rate - Blank check error.

 

Analog Devices AD289J (Date Code not marked or labeled) - 10% Failure rate - Low gain.

 

Maxim DS2506+ (Date Code 1224) - 18% Failure rate - Blank check error.

 

Altera EP2S60F1020C5N (Date Code 0831) - 7% Failure rate - Program error.

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