Patent ID: 7948609
Filing Date: 2011-05-24
Classification: G03F

Abstract:
1. 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 hold a substrate; a projection system configured to project the patterned radiation beam onto a target portion of the substrate; and a stage control system configured to control a position of one of the supports in response to a position setpoint signal, the stage control system comprising: wherein the stage control system is configured to modify the position setpoint signal into a modified position setpoint signal, the setpoint input of the feedback control loop to receive the modified position setpoint signal, the modified position setpoint signal to take into account a non rigid body behavior of the one of the supports.