Patent ID: 8823919

Claim:
A surface member covering at least a part of a surface of an immersion lithographic apparatus, the member having two major orthogonal dimensions and comprising: a covering portion having a first surface and a second surface; and an adhesive on the second surface attaching the member to the surface of the immersion lithographic apparatus, wherein the covering portion comprises: a layer of plastic material or polymer overlying at least part of the adhesive, and an opaque layer that is substantially opaque to DUV radiation, the opaque layer covering at least part of the layer of plastic material or polymer, wherein the first surface of the covering portion is lyophobic, the lyophobic surface overlying at least part of the opaque layer, and wherein at least the part of the layer of plastic material or polymer and/or the adhesive deteriorates on exposure to DUV radiation, which deterioration is substantially prevented by the opaque layer covering at least the part of the layer of plastic material or polymer and/or the adhesive.