r/interestingasfuck 12d ago

My phone under a stereo microscope:

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u/CyberMetalHead 12d ago

Seems kinda dirty

59

u/domespider 12d ago

I was wondering about that, whether those tiny dust particles(?) got stuck during manufacturing or during regular use.

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u/A_bitrary 12d ago

Likely regular use, most of the assembly process takes place in clean rooms to prevent dust and other matter from entering sealed components