Patent ID: 8035796
Filing Date: 2011-10-11
Classification: G03F

Abstract:
1. An immersion exposure apparatus for exposing a substrate through a liquid comprising: an illumination optical system configured to illuminate an original with exposure light from an exposure light source; a projection optical system configured to project a pattern of the original onto the substrate; a chuck configured to hold the substrate; a liquid support plate configured to support the liquid together with the substrate held by the chuck, a surface of the liquid support plate including a surface of a metal oxide; a movable stage including the chuck and the liquid support plate; and a liquid repellency recovery unit configured to recover a liquid repellency of the surface of the metal oxide with respect to the liquid, wherein a metal oxide film is formed on a surface of the liquid support plate and a surface of the metal oxide is a surface of the metal oxide film, wherein the liquid support plate includes a transparent base material that transmits an irradiating light and the metal oxide film is formed on a surface of the transparent base material; and wherein the liquid repellency recovery unit illuminates the metal oxide film with the irradiating light through the transparent base material.