Patent ID: 7193681

Claim:
A lithographic projection apparatus comprising: an illumination system configured to condition a radiation beam; a support structure constructed to hold a patterning device, the patterning device being capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam; a substrate table constructed to hold a substrate; a projection system configured to project the patterned radiation beam onto a target portion of the substrate; and a liquid supply system configured to at least partly fill a space between a final optical element of the projection system and the substrate with a liquid, the liquid supply system comprising a movable liquid confinement member configured to at least partly confine the liquid to the space and to supply liquid to, remove liquid from, or both, the space, the liquid confinement member being separate from the substrate table; movable during projection of the patterned radiation beam, and restricted in a range of movement in a direction substantially parallel to an optical axis of the apparatus by a stopper.