Patent ID: 7593093
Filing Date: 2009-09-22
Classification: G03F

Abstract:
1. A lithographic projection apparatus comprising: a support structure configured to hold a patterning device, the patterning device configured to pattern a beam of radiation according to a desired pattern; a projection system configured to project the patterned beam onto a target portion of a substrate; a substrate table configured to hold the substrate, said substrate table comprising: an edge seal member configured to at least partly surround an edge of at least one of said substrate and an object positioned on said substrate table, and a further edge seal member configured to extend across the gap between said edge seal member and said at least one of said substrate and said object and to be in contact with said at least one of said substrate and said object; and a liquid supply system configured to provide a liquid, through which said beam is to be projected, in a space between said projection system and said at least one of said substrate and said object, wherein said further edge seal member is flexible.