Week 36 Report

Inspection Accept

48%

Electrical Testing Pass

54%

Weeks 36 Summary                                                                                                          

Electrical Testing made a dramatic plunge from Week 35's 94% to land at 54% in Week 36. I hate to say it, but perhaps they are afraid of the dizzying heights they reached in Weeks 34 and 35.

Needless to say, the two high risk devices reported last week were supplanted by eleven devices in Week 36, including two with a 100% failure rate.

Not to be outdone, Inspection results made a similar plunge to 48% in Week 36 after having fought its way up to 80% in Week 36. With over 50% of lots being physically substandard, a similar free fall in Electrical Testing yields wasn't too surprising.

AD521SD/883B Low gain and high DC offset(Yellow: IN; Blue: OUT)

Week 36 Quality Report

Xilinx XC95108-15PCG84C (Date Codes 1137 and 1103) - 22% Failure Rate - Program error, wrong ID and no output.

Ixys Semiconductor IXFH88N30P (Date Code not marked or labeled) - 100% Failure Rate - Low breakdown voltage.

ST Microelectronics M48T59Y-70PC1U (Date Code not marked or labeled) - 95% Failure Rate - program and verify error.

Fairchild Semiconductor BC33740TA (Date Code not marked or labeled) -25% Failure Rate - Low BVces and open Vbe(on).

STMicroelectronics  ST72T141K2M61E (Date Code 0022) - 8% Failure Rate

Kemet T495D107K016ATE100 (Date Code 110712GV2) -70% Failure Rate - Hih ESR. 

Analog Devices AD581TH (Date Code 1235) - 54% failure rate - High output.

Analog Devices AD580SH (Date Code 1303) - 7% failure rate - No output.

Maxim DS2506 (Date Code not marked or labeled) - 18% failure rate - Blank-check error.

Analog Devices AD521SD/883B (Date Code 1232) - 100% failure rate - Low gain and high DC offset.

Ali M6117D (Date Codes 0613 and 0607) - 5.5% failure rate - Open and shorted pins with bad protective diodes.