Patent ID: 7525643
Filing Date: 2009-04-28
Classification: G03F

Abstract:
1. A lithographic apparatus arranged to transfer a pattern from a patterning device onto a substrate, the lithographic apparatus including a mechanism comprising: a movable element, at least partially made from a magnetizable material, the movable element being movable between a first position and a second position; a pretensioner exerting a pretension force on the movable element urging it to the first position; a magnet producing a magnetic field exerting a force on the movable element urging it to the second position; and a coil producing, when energized in a first direction, a magnetic field exerting a force on the movable element urging it to the second position, wherein the combined magnetic field of the magnet and the coil exerts a force on the movable element which is higher than the pretension force, and wherein the movable element is rotatable around an axis, said first position being first angular position, and said second position being a second angular position.