FilterHN

80 per minute is less than a second for what sounds like several movements - move the die over, align, push down, move it out. While your eye is stuck to the microscope.

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throwup238

3 hours ago

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For context this is a 12 year old article about an outdated factory before LED die bonders got cheaper. The humans are working as glorified pick and place machines doing very repetitive motions, not manually aligning each die through a microscope. This only works because the tolerances on the placement between the die and anode/cathode are huge and the surface tension of the adhesive does most of the work.

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bhagyeshsp

2 hours ago

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I guess I had read this article 12-13 years back. I think it was this same article.

One of the things I vaguely remember was reading somewhere that working on this LED manufacturing severely damages the workers' eyes. I don't know how much of it is true and if it is, whether that is still the case.

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s0rce

59 minutes ago

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Neat, I was expecting more about how the semiconductor part is made. I toured the Lumileds/Phillips fab that closed in San Jose but you can't really see much.

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QuinnyPig

52 minutes ago

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You could probably see more if they used their own product.

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londons_explore

4 hours ago

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So every LED die is manually aligned?

Surely 10 years on that isn't true anymore??

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