Patent ID: 8704999
Filing Date: 2014-04-22
Classification: G03F

Abstract:
1. A lithographic apparatus arranged to project a pattern from a patterning device onto a substrate through a liquid which covers only a portion of the substrate and which is confined in a space adjacent the substrate, the apparatus comprising: a projection system; and a nozzle member which has a structure substantially parallel to a surface of a substrate table configured to hold the substrate, to divide the space into an upper space and a lower space, the structure having an aperture to allow transmission of the pattern, the nozzle member having an outlet at a bottom side of tile nozzle member to extract a fluid from the space, wherein the outlet is radially outward of the aperture, the substrate table is configured to move relative to the nozzle member below the nozzle member, the aperture is configured to allow movement of the liquid between the upper space and the lower space, the nozzle member has an inlet to provide the liquid to the space, and both the inlet and the outlet form a substantially closed loop around the aperture.