Patent ID: 9392679
Filing Date: 2016-07-12
CPC Classification: G21K,H01S,H05G

Claim Text:
1. A method, comprising: generating a first laser portion from a first free electron laser (FEL) source, wherein generating said first laser portion comprises accelerating a first electron bunch in a first superconducting accelerator configured to direct the first electron bunch in a rotational path within said superconducting accelerator and into a first undulator configured in parallel to said accelerator; generating a second laser portion from a second FEL source, wherein generating said second laser portion comprises accelerating a second electron bunch in a second superconducting accelerator configured to direct the second electron bunch in a counter-rotational path with respect to the first laser portion within said second laser portion superconducting accelerator and into a second undulator configured in parallel to said accelerator; combining said first laser portion and said second laser portion to generate an extreme ultraviolet (EUV) beam; and providing said EUV beam to a plurality of processing tools.