3 ms·
> Almost everything is crazier than you think. This is a very good rule of thumb about modern leading edge fab technology. Imagine the craziest, most impractic
by Tuna-Fish 6y ago
> Almost everything is crazier than you think.
This is a very good rule of thumb about modern leading edge fab technology. Imagine the craziest, most impractical, most expensive things you can come up with for methods to manufacture things. The actual processes used are crazier than that.
For a reference point, just look up how the light source for the EUV steppers work. [0] tl;dr: They are melting tin, dripping the molten tin in droplets of carefully controlled size, shooting those droplets into a vacuum chamber at 70m/s, and then hitting them simultaneously with so many lasers that they are instantly ionized and then emit radiation of the desired wavelength. And they are using this Rube Goldberg-esque contraption as a glorified light bulb. Everything is like that.
[0]: https://www.osa-opn.org/home/articles/volume_29/march_2018/features/euv_light_sources_for_next-gen_lithography/ https://www.osa-opn.org/home/articles/volume_29/march_2018/f...
- willis936 6y agoWow. That's a lot of extra steps compared to what they do with other discharge lamps. I'm not an authority in this area and I don't know proper terminology, so forgive me if I'm mistaken here. There must be some good reasons for all of this. Probably a long list of things to do with optics, power density, and contamination. Here is a video of a rubidium standard teardown that I like to share. There aren't many places to actually see a discharge lamp. https://www.youtube.com/watch?v=ymV9LwhD0W0 https://www.youtube.com/watch?v=ymV9LwhD0W0