Week 19 Report

Inspection Accept

48%

Electrical Testing Pass

73%

Week 19 Summary                                                                        

After both Electrical Testing and Inspection yields posted gains in Week 18, they both suffered lapses in Week 19.

Testing yields dipped back to 73% in Week 19 after climbing to 74% in Week 18 and have been relatively stable at 70-75% for the past six weeks.

After three straight weeks of improvement, Inspection results collapsed to just 48% in Week 19 after working hard for three weeks to climb their way up to 76% in Week 18.

There are five part numbers with electrical failure rates of over 5% on the list this week, one of which had a 100% failure rate.

National Semiconductor LM4140CCM-1.0  (Date Code not marked or labeled) - 6% Failure Rate - Readings beyond the specified limits.

ST Microelectronics VN5770AKPTR-E (Date Codes 348&349) - 78% Failure Rate - Low output and high supply current.

Infineon IPP70N10SL-16 (Date Code not marked or labeled) - 100% Failure Rate - High Vgs(th).

STMicroelectronics ST72T141K2M6  (Date Code not marked or labeled) - 8% Failure Rate - Failed loading program.

Altera EPM7160STC100-10N (Date Code not marked or labeled) - 75% Failure Rate - Program error. 

Infineon IPP70N10SL-16 - 100% failure for High Vgs(th)