Patent ID: 9360764
Filing Date: 2016-06-07
CPC Classification: G03F

Claim Text:
1. An exposure apparatus that exposes a substrate while liquid is filled between a projection optical system and the substrate, the exposure apparatus comprising: a measuring member disposed in a substrate stage for holding the substrate, at a side of a surface holding the substrate of the substrate stage; an auxiliary member disposed at a side of the surface of the substrate stage, with a gap between the auxiliary member and the measuring member; and a sealing member contacting a surface of the auxiliary member, disposed to cover the gap, and for suppressing penetration of the liquid located on a surface of the measuring member or the surface of the auxiliary member into the gap, wherein the sealing member includes a fixing member adhered to the surface of the auxiliary member, and a shape at an edge of the sealing member in a measuring member side forms a space that contacts a part of the fixing member and the liquid with gas, while the liquid is on the surface of the measuring member and the liquid contacts the edge.