Also Cymer is a US company acquired by ASML (https://www.asml.com/en/company/about-asml/cymer https://www.asml.com/en/company/about-asml/cymer). They provide th

Also Cymer is a US company acquired by ASML (https://www.asml.com/en/company/about-asml/cymer https://www.asml.com/en/company/about-asml/cymer). They provide the technology for EUV source.