Patent ID: 8947640
Filing Date: 2015-02-03
Classification: G03F,H01L

Abstract:
1. A positioning device for positioning an object within a lithographic apparatus, the positioning device comprising: a support structure configured to support the object; at least two short-stroke units, each having a connection section connected to the support structure at a respective connection point; and a long-stroke unit; wherein each of the short-stroke units comprises a short-stroke actuator system configured to cooperate with a same surface of the long-stroke unit to provide independently an actuation force between the connection section of the short-stroke unit and the long-stroke unit so that a position of a first of the at least two short-stroke units is independently controlled relative to a position of a second of the at least two short-stroke units; and wherein the long-stroke unit comprises a long-stroke actuator system configured to provide an actuation force between the long-stroke unit and a reference structure of the lithographic apparatus.