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by sevensor
640 days ago
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Depends on how big they are, what layer they land on, what they’re composed of. I was a semiconductor process engineer for a few years, and honestly the worst damage came from people, and not in the “people shed dust everywhere” sense, but in the “people do dumb things” sense. Like when the robot goes bonkers and you have to manually recover a wafer, so you just grab it with your fingers, slot it back in the carrier, and send the lot off to cleans after processing the rest through on a different machine. We would have whole lots with elevated defects because people did stuff like this. |
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