Lithographic apparatuses and methods for compensating for eigenmode coupling

A lithographic apparatus can include a component and a positioning system operatively coupled and configured to move the component along a first axis. The positioning system can be configured to measure a position of the component along a second axis or a third axis. The positioning system can also...

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Bibliographische Detailangaben
Hauptverfasser: VAN GERVEN MARK HENRICUS WILHELMUS, WARD CHRISTOPHER CHARLES, VAN GOCH BRAM PAUL THEODOOR
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A lithographic apparatus can include a component and a positioning system operatively coupled and configured to move the component along a first axis. The positioning system can be configured to measure a position of the component along a second axis or a third axis. The positioning system can also be configured to control movement of the component so as to compensate for an effect of eigenmode coupling between the movement of the component along the first axis and the measured position of the component along the second axis or the third axis. In some embodiments, the component is a reticle stage or a wafer stage.