Patent ID: 7675607
Filing Date: 2010-03-09
Classification: G03F

Abstract:
1. A lithographic apparatus comprising: an illumination system configured to condition a radiation beam; a 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, the support comprising a support clamp constructed to releasably clamp the patterning device to the support; a bending mechanism constructed to apply a bending torque to the clamped patterning device, the bending mechanism comprising a force/torque actuator configured to act on the clamped patterning device without substantially reducing the clamping force exerted on the patterning device by the support clamp; a substrate table constructed to hold a substrate; and a projection system configured to project the patterned radiation beam onto a target portion of the substrate.