LITHOGRAPHIC APPARATUS COMPRISING SUBSTRATE TABLE

摘要

PROBLEM TO BE SOLVED: To provide a lithographic apparatus that enables accurate focus positioning of a substrate.SOLUTION: A lithographic apparatus includes: an illumination system configured to adjust a radiation beam; and a support medium constructed to support a patterning device capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam. The lithographic apparatus further includes: a substrate table constructed to hold a substrate; a positioner constructed to position the substrate table; a projection system configured to project the patterned radiation beam onto a target portion of the substrate; a substrate surface actuator arranged to engage a part of a surface of the substrate facing the projection system; and a position controller configured to control a position of the substrate table and arranged to drive the positioner and the substrate surface actuator.