White Horse Laboratories Week 23 Counterfeit Detection Report
84% Accept 57% Pass
Physical Inspection acceptance climbed further in Week 23 to 84% from Week 22′s 74%. Eletrical testing yields, however, dropped to 54% on relatively low volumes.
I do not think that it is a coincidence that a majority of the devices that fail electrical testing require advanced testing capabilities, such as high voltage and current devices, and parametric rather than functional testing on less complex devices for which there are similar, but not identical devices available from Tier 2 manufacturers.
The other trend is for more complex digital-based devices to have failures consistent with long-term storage or even previous use, such as open and short pins, damaged protection diodes, and existing programming.
Atmel AT91FR40162SB-CU (Date Code 0914) – 57% failure – program & verify error.
Semikron SKM200GAL125D (Lot Code 06115) - 40% failure – high Ices.
Infineon SAB80C537-N (Date Code 0848) – 100% failure – open pins.
NXP PHD96NQ03LT (Date Code 1036) – 50% failure - low breakdown voltage (40%) and high gate leakage (10%).