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Wow. Those machines are something else altogether. I watched a chip making clip a while back and I recall that they talked about having to make strange patterns
by aidos 7y ago
Wow. Those machines are something else altogether. I watched a chip making clip a while back and I recall that they talked about having to make strange patterns in the stencils (not sure what they’re called) to work around the way the light twists when it actually hits the die. I’ve probably got most of that wrong but is that still a thing with the addition of the water layer?
- spectramax 7y agoYeah, they calculate the transfer function of the pattern and then pattern the mask to achieve the end result printed on the silicon substrate. With EUV lithography, it substantially reduced this pattern complexity. Jim talks about it at this mark in this presentation: https://youtu.be/Qnl7--MvNAM?t=784 https://youtu.be/Qnl7--MvNAM?t=784
- saganus 7y agoSounds like this video: Indistinguishable from magic: Manufacturing modern computer chips https://youtu.be/NGFhc8R_uO4 https://youtu.be/NGFhc8R_uO4 Just amazing. I wish a newer video explaining more recent technologies was available.