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公开(公告)号:US09715182B2
公开(公告)日:2017-07-25
申请号:US14647778
申请日:2013-11-25
Applicant: ASML Netherlands B.V.
Inventor: Marinus Maria Johannes Van De Wal , Wilhelmus Henricus Theodorus Maria Aangenent , Ramidin Izair Kamidi , Khalid Manssouri
IPC: G03F7/20
CPC classification number: G03F7/70725 , G03F7/70341 , G03F7/70758 , G03F7/70783
Abstract: A lithographic apparatus includes a driven object having compliant dynamics; a plurality of actuators configured to act on the driven object, wherein the plurality of actuators are over-determined in an actuator degree of freedom; a control system including a transformation matrix configured to generate controller output signals for each of the plurality of actuators in response to a setpoint, wherein the transformation matrix is configured such that the controller output signals do not excite the compliant dynamics of the driven object in at least one degree of freedom.