Patent ID: 6992752

Claim:
A device manufacturing method, comprising: providing a substrate that is at least partially covered by a layer of radiation-sensitive material; providing a projection beam of radiation using a radiation system; using a patterning device to endow the projection beam with a pattern in its cross-section; projecting the patterned beam of radiation onto a target portion of the layer of radiation-sensitive material; and effecting desired linear accelerations in first and second orthogonal directions and an angular acceleration about an axis perpendicular to the first and second orthogonal directions on a point on a component, wherein effecting the desired linear and angular accelerations comprises: determining the positioning forces required to effect the desired accelerations on the center of mass of the component; determining a corrective force, the corrective force being in the second orthogonal direction and having a magnitude proportional to the velocity in the first orthogonal direction of the point on the component and the angular velocity of the component about the axis perpendicular to the first and second orthogonal directions; and applying the sum of the positioning forces and the corrective force to the center of mass of the component.