Patent ID: 8553201

Claim:
A lithographic apparatus comprising: a movable table; a projection system arranged to project a patterned radiation beam onto a target portion of a radiation-sensitive substrate; a liquid supply system member configured to contain a liquid in a space between the projection system and the substrate; a liquid supply system member compensator arranged to compensate for a disturbance caused, or to be caused, to the table by a non-contact interaction between the liquid supply system member and the table, wherein the liquid supply system member compensator comprises a liquid supply system member suspension device capable of applying a force to the liquid supply system member to at least partially compensate for the interaction between the liquid supply system member and the table; a liquid supply system member position determining device configured to determine a position of the liquid supply system member in a direction substantially perpendicular to the optical axis of the projection system; and a liquid supply system member suspension device controller configured to apply a force to the liquid supply system member, via the liquid supply system member suspension device, based on a position of the liquid supply system member as measured by the liquid supply system member position determining device.