Cymer Inc. is one of the world''s leading suppliers of excimer laser illumination sources, the essential light source for deep ultraviolet photolithography systems used in the manufacture of semiconductors. Deep ultraviolet lithography is a key enabling technology that has allowed the semiconductor industry to meet the exacting specifications and manufacturing requirements for volume production of today''s most advanced semiconductor devices. Cymer''s lasers are incorporated into step-and-repeat and step-and-scan photolithography systems.