Patent ID: 9244362
Filing Date: 2016-01-26
CPC Classification: G03F

Claim Text:
1. A liquid immersion exposure apparatus comprising: an optical assembly having a final optical element, from which exposure light is projected through immersion liquid filling an optical path of the exposure light under the final optical element; a containment member having a first inlet and a gas supply outlet, the containment member surrounding a tip portion of the optical assembly; a stage configured to hold a substrate and that has an upper surface around the held substrate, the stage being movable below and relative to the optical assembly and the containment member; a frame by which the optical assembly and the containment member are supported; and an optical mount isolator which has an actuator and which isolates the optical assembly from vibrations of the frame, wherein the optical mount isolator does not isolate the containment member from the vibrations of the frame; wherein: