Patent ID: 8848165
Filing Date: 2014-09-30
Classification: G03F

Abstract:
1. A lithographic apparatus arranged to project a pattern from a patterning device onto a substrate through a liquid confined in a space adjacent the substrate and along a beam path in the space, the apparatus comprising: a liquid confinement structure configured to at least partly confine the liquid within the space, the liquid confinement structure having a first outlet at the bottom side of the liquid confinement structure and a second outlet outwardly from the first outlet relative to the beam path, the first outlet into which liquid from the space can flow and the second outlet arranged to extract a fluid from the space, and a divider to divide the space into two parts and that is substantially parallel to a surface of a substrate table configured to hold the substrate, the divider having an inlet to provide liquid to the space and an aperture to allow transmission of the pattern and liquid from the part above the divider to the part below the divider, the divider configured to provide a liquid flow substantially parallel to a top surface of the substrate table, and the divider extending from the liquid confinement structure to a point closer to the beam path than the liquid confinement structure, wherein the second outlet surrounds.