Patent ID: 7333179

Claim:
A method for positioning a stage, the stage being arranged on a body of a stage apparatus, the stage further being arranged to carry an object, the method comprising: determining a first magnitude using a position reading associated with the stage; determining a second magnitude using the position reading; providing a first force of the first magnitude to the stage using a primary actuator arranged to drive the stage, the first force being arranged to cause the stage to translate along a first axis, the primary actuator having a first positioning bandwidth; and providing a second force of the second magnitude to the stage using a secondary actuator arranged to drive the stage, the secondary actuator being arranged to cause the stage to translate along the first axis, the secondary actuator having a second positioning bandwidth that is higher than the first positioning bandwidth, wherein the first force is arranged to enable the stage to be relatively coarsely positioned and the second force is arranged to enable the stage to be relatively finely positioned.