Patent ID: 8158959
Filing Date: 2012-04-17
Classification: H05G

Abstract:
1. An extreme ultraviolet light source apparatus generating an extreme ultraviolet light from plasma generated by irradiating a target material with a laser light within a chamber, and controlling a flow of ions generated together with the extreme ultraviolet light using a magnetic field or an electric field, the extreme ultraviolet light source apparatus comprising: an ion collector device collecting the ion via an aperture arranged at a side of the chamber; and an interrupting mechanism interrupting movement of a sputtered particle in a direction toward the aperture, the sputtered particle generated at an ion collision surface collided with the ion in the ion collector device; and wherein the interrupting mechanism interrupts the movement of the sputtered particle toward the aperture by making the ion collision surface tilt with respect to a direction of the movement of the ions.