HackerThe Extreme Engineering of ASML’s EUV Light Source
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Further reading 2
How much does a successful demonstration establish? →A program gives the expected output. Between “it did” and “it will” lie the test distribution, formal assumptions and deployment context. Those boundaries are easy to miss under pressure to ship.This video helps answer · Does the process work through the whole layer?Why does moving the measurement change the verdict on a machine? →Open a dishwasher after its first drain, then remove the bread from a toaster. Two small experiments expose where a measurement begins, where it ends and what the instrument actually senses.This video helps answer · What goes on the mask if the wafer needs an L?
Caption notes
An EUV source strikes a small tin droplet twice. The prepulse reshapes the target and the main pulse creates the plasma that emits the desired wavelength. The engineering problem becomes one of size, shape and alignment at each repeated shot.
Archived captions (transcription method unspecified) ↗Original passages · 2
reshape the tin droplet from a sphere into a concave sheet.the concave sheet tilts in the wrong direction and messes up the second shot.