Patent ID: 9335639
Filing Date: 2016-05-10
CPC Classification: G03F

Claim Text:
1. An exposure apparatus that exposes an object via a projection optical system and a liquid, the apparatus comprising: a stage on which the object can be mounted and which moves in a light emitting side of the projection optical system; a liquid immersion member having a supply port from which the liquid is supplied to the light emitting side of the projection optical system; and a first member which has a transmissive member and which is placed on the stage, the stage being movable to a position at which the first member comes into contact with the liquid and at which the first member is irradiated with a measurement light from the projection optical system through the liquid, wherein the measurement light enters the transmissive member via a first surface of the transmissive member and exits from the transmissive member via a second surface of the transmissive member, and the first member has a light-limiting material arranged on a portion of the second surface of the transmissive member.