LITHOGRAPHIC APPARATUS, DEVICE MANUFACTURING METHOD, AND METHOD OF CALIBRATING A DISPLACEMENT MEASURING SYSTEM

An interferometric displacement measuring system operable to measure displacements of a movable object of the lithographic apparatus in a first direction using a measurement beam of radiation and a reflector. The reflector being substantially planar and substantially perpendicular to the first direc...

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Bibliographische Detailangaben
Hauptverfasser: JANSEN MAARTEN, SCHREUDER ANDRE
Format: Patent
Sprache:eng
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