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I’d just like to comment on how batshit insane the technology is. “We pulse lasers in sync with dispensing droplets of molten tin to produce light that doesn’t
by sgarland 2y ago
I’d just like to comment on how batshit insane the technology is.
“We pulse lasers in sync with dispensing droplets of molten tin to produce light that doesn’t exist outside of stars, then we use mirrors with a sub-angstrom surface roughness to precisely direct it onto wafers.”
Not to mention the fact that this is happening, IIRC, thousands of times per second, and the tool has to take the wafer’s topography into account to focus the beam. Honestly, EUV litho makes every other technology you could describe sound like child’s play.
- Fronzie 2y agoAnd the tin droplets are in vacuum, with contamination of the wafer being very critical to control.
- leoc 2y agoThis old article from 2013 was funny: https://web.archive.org/web/20240416175801/https://semiaccurate.com/2013/02/13/euv-moves-forward-two-steps-back-one/ https://web.archive.org/web/20240416175801/https://semiaccur...
- dylan604 2y agoThe first time I read about this process, I was convinced aliens were involved. Seriously, it's one of those crazy pitch meeting things that sounds ridiculous so of course it was green lit. "So we fire this laser, pew pew, into a field of molten tin droplets, and bingbangflam, you get this flash of light. So what do you think?" Hold my beer. It's clearly some people that are very smart that can only be explained by aliens
- pjdesno 2y agoRoughly similar craziness: Disk drives mechanically position heads less than 1nm above the platter, with horizontal accuracy of significantly less than the 50nm track width, at a retail price of a few hundred $$ or less. 30 years ago I think you could have gotten any number of experts to explain why both EUV lithography and modern disk drives are impossible.
- sgarland 2y agoTrue, and all while the platter is spinning at thousands of RPM, perfectly balanced. HDDs are wild.