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Comment by NortySpock | Hacker News Reader

Twice. They have to hit the molten droplet twice.

Once "gently" to deform it briefly into a concave shape, and the second, harder pulse to actually activate the droplet to emit extreme ultraviolet light

Asianometry on EUV. Skip to 10m50s. https://youtu.be/5Ge2RcvDlgw

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Anyone who reads these descriptions and doesn’t realize this is literally the magic of sorcerers predicted in our fantasy lore have lost the ability to dream. What an amazing time to be alive.

The process sure, but the end product? Sand awoken, talking, thinking, creating, dreaming. Merlin was not so powerful.

I'm quite sure that the people working on this see lots and lots of barely holding duct tape in what you describe as "magic".

And yet that duct-taped machine can consistently fire two laser beams at a single droplet of molten tin hundreds of times an hour. Pretty magic if you ask me.

I teach my daughter science is just magic we understand. Once we understand something it becomes ordinary, but the trick is to hold onto the wonder.

I'm quite sure they know the difference between real engineering and pretend engineering and I can guarantee you there is no duct tape in there, each and every last residual effect is part of the model, if it weren't it wouldn't work at all. The scales you're talking about imply that even the tiniest parasitic effect that you could safely ignore otherwise is going to utterly dominate your work if you don't account for it.

Asianometry is an amazing channel for topic like this. Also check the video on water for chip manufacturing. You’d never think there so many interesting challenges with something so mundane as water.

Modern chip manufacturing is basically black magic.

Basically the title of this presentation. https://youtu.be/NGFhc8R_uO4

Highly recommended if you haven't seen it yet.

>Modern chip manufacturing is basically black magic.

This, if you ever want to feel wonder at things the human race can accomplish, lithography has to be in the top 3 reasons imo.

Timestamped link: https://youtu.be/5Ge2RcvDlgw?t=10m48s

Thank you, I was on mobile and couldn't easily find the timestamped url option.

Not only do they hit it twice, but they're also depositing and hitting it twice _50,000_ times every second!

https://www.asml.com/en/technology/lithography-principles/li....

Just absolutely insane engineering going on there.

For everyone to understand: pew pew, not just pew

Just so long as Stormtroopers aren’t doing the aiming.

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