Patent ID: 7525636

Claim:
A lithographic apparatus comprising: an illumination system configured to condition a radiation beam; a support constructed to hold 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; a substrate table constructed to hold a substrate; a projection system configured to project the patterned radiation beam onto a target portion of the substrate; a measurement system configured to measure a position of the patterning device; a first stage apparatus configured to displace the support; a second stage apparatus configured to support the substrate table; and a control unit constructed and arranged to: perform a first position measurement of the patterning device using the measurement system; apply an asymmetric acceleration profile to the support using the first stage apparatus; perform a second position measurement of the patterning device using the measurement system; determine a slip characteristic of the patterning device based on the two position measurements and the applied acceleration profile; and perform a scanning exposure of a substrate by controlling the first and second stage apparatus taking into account the slip characteristic of the patterning device.