Lithographic apparatus and device manufacturing method

The present invention relates to the method of reducing contamination of an immersion liquid in a lithographic apparatus when a closing surface is used to confine liquid in a liquid supply system. To avoid or reduce particulate contamination caused by the closing surface colliding with the liquid su...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JANSEN HANS, TINNEMANS PATRICIUS A.J, VAN DER TOORN JAN-GERARD C
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to the method of reducing contamination of an immersion liquid in a lithographic apparatus when a closing surface is used to confine liquid in a liquid supply system. To avoid or reduce particulate contamination caused by the closing surface colliding with the liquid supply system, the closing surface is maintained at a distance away from the liquid supply system such that there is no collision between the closing surface and the liquid supply system, but the liquid is nonetheless confined.