Patent ID: 9274437
Filing Date: 2016-03-01
CPC Classification: B82Y,G03F,Y10T

Claim Text:
1. An exposure apparatus that exposes a substrate with illumination light via liquid, the apparatus comprising: a catadioptric projection system having (a) a plane-convex lens arranged such that a plane surface is in contact with the liquid and (b) a plurality of lenses at least a part of which is used for adjustment of magnification and distortion; a detection system arranged apart from the projection system and configured to detect a mark on the substrate; a liquid immersion member having an opening through which the illumination light passes and arranged to surround the plane-convex lens and such that a liquid immersion region is formed with the liquid beneath the projection system; a first movable member having an upper surface and arranged below the projection system and below the detection system, the upper surface having a hole in which the substrate can be placed, the first movable member being arranged such that at least part of the liquid immersion region is maintained by the upper surface when the at least part of the liquid immersion region is located outside the substrate, which is placed in the hole; a second movable member having an upper surface and arranged below the projection system and below the detection system, the second movable member being arranged to be movable relative to the first movable member; a drive system having a motor, parts of which are provided at the first and second movable members respectively, the drive system being configured to move the first and second movable members by use of the motor; and a controller coupled to the drive system and configured to control a drive for the first and second movable members, wherein the controller is configured to control the drive system such that, while one of the first and second movable members is arranged opposite to the projection system, another one of the first and second movable members approaches the one of the first and second movable members, and such that the first and second movable members in an approached state move relative to the liquid immersion member in a predetermined direction, which is orthogonal to an optical axis of the projection system, so that the another one of the first and second movable members is arranged opposite to the projection system in place of the one of the first and second movable members while the liquid immersion region is substantially maintained beneath the projection system, when the liquid immersion region is maintained beneath the projection system by the one of the first and second movable members, which is arranged opposite to the projection system, the another one of the first and second movable members is away from beneath the projection system, the exposure apparatus is configured such that the liquid immersion region is formed with the liquid which is supplied via the liquid immersion member, and such that the liquid of the liquid immersion region is collected via the liquid immersion member, and the exposure apparatus is configured such that the substrate is exposed with the illumination light via the projection system and via the liquid of the liquid immersion region, and such that the mark is detected by the detection system not via the liquid.