and they are based on research done by the United States which they licensed, hence why the US is able to block them from exporting to China. All the UV lithogr

and they are based on research done by the United States which they licensed, hence why the US is able to block them from exporting to China. All the UV lithography research was done by the US decades ago https://www.eetimes.com/u-s-gives-ok-to-asml-on-euv-effort/ https://www.eetimes.com/u-s-gives-ok-to-asml-on-euv-effort/