Patent ID: 9097986
Filing Date: 2015-08-04
Classification: G03B,G03D,G03F

Abstract:
1. An exposure apparatus which exposes a substrate via a projection optical system and an immersion liquid, comprising: a substrate table which moves under the projection optical system while holding the substrate; an immersion system which has a liquid supply port and a liquid recovery port, the immersion liquid being supplied onto a part of the substrate via the liquid supply port and being recovered via the liquid recovery port to form a liquid immersion region onto the part of the substrate; and a liquid detecting device; and a controller that instructs the liquid detection device to detect a remaining immersion liquid on the substrate (i) after the substrate has been exposed via the immersion region and (ii) while the exposed substrate moves via a path away from the projection optical system, the remaining immersion liquid being a liquid which is not recovered via the liquid recovery port.