Patent ID: 7196768

Claim:
A lithographic apparatus comprising: an illumination system configured to condition a radiation beam; a patterning device support constructed to support a patterning device, the patterning device being capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam; a substrate support constructed to support a substrate; and a projection system configured to project the patterned radiation beam onto a target portion of the substrate, said substrate support being arranged to move the substrate along a predetermined trajectory of subsequently targeted target portions of the substrate, said trajectory defining an averaged progression direction of said subsequently targeted portions of said substrate, wherein said substrate support comprises a duct configuration for providing thermal stabilization to said substrate, said duct configuration being arranged to duct thermally stabilizing media in said substrate support, and to substantially duct the media away from a part of said substrate support that supports said target portion in an averaged direction opposite to said averaged progression direction via parts of said substrate support that support previously targeted portions of the substrate, so as to keep subsequently targeted target portions thermally stable during movement of the substrate along the entire trajectory.