Patent ID: 9052615
Filing Date: 2015-06-09
Classification: G03F,H05G

Abstract:
1. An extreme ultraviolet (EUV) light source apparatus for generating plasma by irradiating a target material with a laser beam and outputting EUV light from the plasma to exposure equipment, the apparatus comprising: a chamber in which the plasma is generated; a droplet generator disposed in the chamber to provide the target material to be irradiated with the laser beam for generating the plasma; a collector mirror disposed in the chamber and configured to collect the EUV light from the plasma to the exposure equipment; a support configured to support the chamber to align the optical axis of the EUV light source apparatus with an optical axis of the exposure equipment, the support being further configured to: a positioning mechanism configured to position the chamber for aligning the optical axis of the EUV light source apparatus with the optical axis of the exposure equipment and restrict movement of the chamber in the second direction; a fixing member configured to restrict movement of the chamber in the first direction from the position where the optical axis of the EUV light source apparatus is aligned with the optical axis of the exposure equipment; a base fixed onto a floor; a rail fixed onto the base and extending in the first and second directions; a slide block fixed to an undersurface of the support and configured to engage with the rail; a bearing disposed between the rail and the slide block; and a gate valve disposed at an EUV outlet of the chamber.