ASML is making more than "just light sources". (indeed the "light source" part of their photolitography machines is something they bought a company from the US for - the entire industry has supply chains spanning the world, so attributing it to countries makes not that much sense IMHO)

Interesting, I stand corrected.

That's like calling boeing a propeller company. ASML builds chip making machines. EUV isn't about light sources. It's about the entire process.

https://www.deingenieur.nl/artikel/first-commercial-asml-euv...

This article references Cymer as the manufacturer of the actual light source. https://en.wikipedia.org/wiki/Cymer

I think of them as Si printers with incredibly precise optics. There is certainly something missing in your analogy.

Yeah, it's like inkjet printer vs a little hose that squirts ink, only more so.