Weeks 11-12 Report

Inspection Accept

67%

Electrical Testing Pass

63% 

Weeks 11-12 Summary                                                                                                          

Electrical Testing yields reached four straight weeks of declines, landing at 58% in Week 12 after reaching a peak of 94% in Week 9.

With volumes returning to normal following the Lunar New Year holiday, the list of high failure rate devices is extensive, with 8 different devices having a 100% failure rate.

Inspection yields dipped in Week 11 to 61% and then regrouped to land at 71% in Week 12 after reaching 75% in Week 10.

Weeks 11-12 Quality Report

VN920DSPTR-E - parts have been remarked.

Substandard Part Listing

Philips BSN304 (Date Code Not marked or labeled) - 100% Failure Rate - BCVdss was about 270V with 10uA drain current.

Torex XC62KN3302M (Date Code not marked or labeled) - 100% Failure Rate - No output.

ST Microelectronics STW18NK80Z (Date Code 235) - 100% Failure Rate -  High Rds(on).

Xilinx XC95288XV-7TQ144C (Date Code 0641) - 100% Failure Rate

Cirrus Logic CS5317-KS (Date Code 0627) - 100% Failure Rate - Failed testing with CLKIN (Pin10) pull-down to VD-, and no output data (Pin7) and clock (Pin6).

ST Microelectronics ST72T141K2MCE (Date Code not marked or labeled) - 100% Failure Rate - Blank-check error.

On Semiconductor CAT24C44LI (Date Code 1026) - 100% failure Rate - Program and verify error.

Catalyst CAT24C44VI (Date Code not marked or labeled) - 96% Failure Rate - Program and verify error.

Texas Instruments LM2671M-3.3/NOPB  (Date Code not marked or labeled ) - 31% Failure Rate - No output or high output.

Xilinx XC9572-15 (Date Code 1005) - 16% Failure Rate - Program error and wrong ID.

Xilinx XC95108-10PQ100C (Date Code 829) - 16% Failure Rate - Program error, wrong ID, and not output signal.

Intersil HA7-2645-5 (Date Codes 9617, 9743, 9745, and 0918) - 14% Failure Rate - Varied output distortions.

Texas Instruments 4127KG (Date Code not marked or labeled) - 13% Failure Rate - Distorted and static outputs.

Xilinx XC9572-15PC-84C (Date Codes 0609 and 0613) - 11% Failure Rate - Program error and wrong ID.

Infineon SAF-C517A-LN (Date Code 0417) - 8% Failure Rate - Open/short pins and bad protection diodes (used).