5 ms·
If it replaced a DNP part, it could have been found at a flying probe test. Half the expected impedance on a few of those pins? Also AOI might have picked up a
by scld 8y ago
If it replaced a DNP part, it could have been found at a flying probe test. Half the expected impedance on a few of those pins?
Also AOI might have picked up a difference.
- dboreham 8y agoFlying probe testing is unlikely to be used for this type of product.
- pixl97 8y agoSounds like a randomized sample of boards needs tested against a reference then.
- nvusuvu 8y agoAOI would miss the chip if it were buried between layers or look exactly like a part it was replaced for.
- lovelearning 8y agoI wonder how the auditing team detected it. X-rays?
- bri3d 8y agoThey might have noted an anomaly in the SMC given the acknowledged SMC firmware exploits (maybe a beta test run?) and investigated the SPI lines to the SMC as a response.