Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus which prevents unevenness in supporting a substrate. SOLUTION: A lithographic projection apparatus includes: a beam production system to provide a beam of radiation, pattern the beam of radiation, and project the patterned beam onto a target portion of the substrate; a support table including protrusions to support an article; a detector to detect height deviations of the protrusions; a material removing device arranged to modify a height of protrusion material; a controller coupled between the detector and the material removing device. The material removing device includes a removal tool selected from a group consisting of a mechanical polishing device, a magneto rheological finishing tool, and a single or multipoint diamond tool. COPYRIGHT: (C)2010,JPO&INPIT