Patent ID: 8363205
Filing Date: 2013-01-29
Classification: G03F

Abstract:
1. An exposure apparatus configured to expose a substrate via a liquid, said exposure apparatus comprising: a projection optical system configured to project an image of a pattern of a reticle onto the substrate; a stage configured to drive the substrate; a liquid supply part configured to supply the liquid to a space between the projection optical system and the substrate; a liquid collection part configured to collect the liquid from the space between the projection optical system and the substrate; a projection provided to an outer circumference of a liquid supply port of the liquid supply part or a liquid collection port of the liquid supply part, and configured to form a shield space around the liquid in cooperation with the substrate or a leveling plate arranged at an outer circumference of the substrate; and a collection unit configured to collect a vapor of the liquid from the shield space and to maintain the shield space to have a negative pressure relative to outside of the shield space.