Substrate holder for use in a lithographic apparatus

A substrate holder for use in a lithographic apparatus and configured to support a substrate, the substrate holder having a main body having a main body surface, a plurality of main burls projecting from the main body surface, wherein each main burl has a distal end surface configured to support the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Roset, Niek Jacobus Johannes, Ravensbergen, Simon Karel, Timmermans, Roger Anton Marie, Kramer, Gijs, Baggen, Mark Constant Johannes, Vermeulen, Marcus Martinus Petrus Adrianus, Van Den Berkmortel, Frank Pieter Albert
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A substrate holder for use in a lithographic apparatus and configured to support a substrate, the substrate holder having a main body having a main body surface, a plurality of main burls projecting from the main body surface, wherein each main burl has a distal end surface configured to support the substrate, a first seal member projecting from the main body surface and having an upper surface, the first seal member surrounding the plurality of main burls and configured to restrict the passage of liquid between the substrate and the main body surface radially inward past the first seal member, and a plurality of minor burls projecting from the upper surface of the first seal member, wherein each minor burl has a distal end surface configured to support the substrate.