Patent ID: 8749757

Claim:
A liquid immersion exposure apparatus which exposes a substrate via a projection optical system and liquid, the apparatus comprising: a movable member which has a substrate holder and a surface disposed adjacent to the substrate holder, the surface capable of positioning under the projection optical system; a liquid immersion system which has a supply path and a recovery path, the liquid immersion system supplying the liquid to a space between the projection optical system and the surface via the supply path and recovering the supplied liquid of a liquid immersion area formed under the projection optical system via the recovery path; and a controller that stops a supply of the liquid to the space under the projection optical system by the liquid immersion system on receipt of a signal indicating the occurrence of an abnormality, wherein the abnormality causes a possibility of leakage due to at least a part of the supplied liquid not being recovered via the recovery path and outflowing from the liquid immersion area.