发明申请
US20090262325A1 Positioning System, Lithographic Apparatus and Device Manufacturing Method 有权
定位系统,平版印刷设备和器件制造方法

Positioning System, Lithographic Apparatus and Device Manufacturing Method
摘要:
A positioning system to position a table within a base frame of a lithographic apparatus, the positioning system including first and second actuators and a controller. The first actuator exerting an actuation force on the table. The first actuator being connected to a balance mass constructed and arranged to absorb a reaction force of the first actuator. The controller and second actuator constructed and arranged to exert a compensation force and/or torque to compensate a torque caused by the actuation force exerted by the first actuator on the balance mass.
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