Patent ID: 7394521

Claim:
A lithographic apparatus comprising: an illumination system configured to provide a beam of radiation; a support structure configured to hold a patterning device, the patterning device configured to impart the beam with a pattern in its cross-section; a substrate table configured to hold a substrate; a projection system configured to project the patterned beam onto a target portion of the substrate; a liquid supply system configured to provide an immersion liquid to a space between the substrate and the projection system, the liquid supply system comprising a barrier member extending along at least a part of the boundary of the space and being in a position relative to an object on the substrate table so that any capillary pressure generated by the immersion liquid between the barrier member and the object is not large enough to constrain the immersion liquid in the space; at least one inlet to supply immersion liquid, the at least one inlet not provided on the substrate table; and at least one outlet to remove immersion liquid, the at least one outlet being radially outwardly of the barrier member, wherein no seal is provided and coupled between the barrier member and the object.