Electronics > Projects, Designs, and Technical Stuff
Is "integrated circuit burn-in" a thing?
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SilverSolder:


If the part is available as an Arduino expansion board, maybe it is something to try? (just to see if a different process makes a difference)
amyk:

--- Quote from: IDEngineer on April 26, 2019, 12:48:44 am ---Which is why one of my theories (noted earlier in this thread) is that the part doesn't "sit still" very well. My long term tests have been unusual in the sense that most people don't just power up a MEMS motion sensor and then let it sit motionless for dozens of hours. Also, so far (fingers crossed) the prototypes we've send into the field haven't reported this error... and they don't sit motionless either. I'm thinking of building some sort of motion table and letting a long term test run on that, to test this theory, but not sure I have the time to spare anytime soon.
--- End quote ---
"doesn't sit still" is an interesting theory, but perhaps more interestingly, what orientation are they mounted in when they're sitting still?
IDEngineer:

--- Quote from: amyk on April 28, 2019, 02:04:49 am ---"doesn't sit still" is an interesting theory, but perhaps more interestingly, what orientation are they mounted in when they're sitting still?
--- End quote ---
Various. They're mounted on a 2x2in PCB. If it's one I'm actively working on I have a little PCB holding jig that allows me to rotate and freeze the board in convenient orientations. Otherwise the boards are plugged into test harnesses, left on the bench, and the PCB's just sit in whatever orientation the harness wiring twist happens to settle into. There's no "normal" orientation, I'd bet no two of them have been in the same orientation when they've locked up. The wiring harness twist and weight is more forceful than the weight of the PCB's so the boards can't force themselves into some sort of repeatable orientation.

EDIT: But once the wiring harness "settles" each PCB is basically motionless in that (random) orientation because I'm not touching it and nothing moves the bench.
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