Patent ID: 9182685
Filing Date: 2015-11-10
Classification: G03F

Abstract:
1. An exposure apparatus that exposes a substrate with exposure light from a projection optical system via an immersion region formed with liquid below the projection optical system, the exposure apparatus comprising: a stage which includes a substrate holder to hold the substrate, and which is movable relative to the projection optical system; a detachable member which is detachably disposed on the stage so that an upper surface of the detachable member comes into contact with the immersion region; and a sensor which includes a light transmissive member disposed on the stage so as to transmit the exposure light from the immersion region, and which detects the exposure light from the light transmissive member, wherein the detachable member, on which an opening is formed in the upper surface, is disposed on the stage so that the light transmissive member is arranged within the opening.