Patent ID: 8508718
Filing Date: 2013-08-13
Classification: G03F,Y10T

Abstract:
1. A liquid immersion exposure apparatus which exposes a substrate with light via a projection optical system and a liquid, the apparatus comprising: a liquid containment member arranged around an optical path of the light emitted from the projection optical system, and which forms an immersion area with the liquid under the projection optical system; a table assembly having a holder which holds the substrate, and a top surface in which an opening is formed, the holder is arranged in the opening, a surface of the substrate held by the holder is positionable opposite to the projection optical system by the table assembly and is contactable with the liquid of the immersion area; a detecting system having a transparent member which is detachably provided on the table assembly, and a detector which detects the light via the transparent member; wherein a top surface of the transparent member and the top surface of the table assembly are substantially co-planar, the transparent member is positionable under the projection optical system by the table assembly, and the detector detects the light via the projection optical system, the liquid of the immersion area, and the transparent member, the top surface of which contacts the liquid of the immersion area, positioned under the projection optical system.