Lithographic apparatus and device manufacturing method

The apparatus has an alignment unit that adjusts position and magnification of a pattern that is projected onto a substrate (10), and a best focus image plane. A detector unit (16) has a set of sensors that simultaneously inspects alignment marks on substrate across full width of the substrate, duri...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GEORGE, RICHARD ALEXANDER, GUI, GHENG-QUN
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:The apparatus has an alignment unit that adjusts position and magnification of a pattern that is projected onto a substrate (10), and a best focus image plane. A detector unit (16) has a set of sensors that simultaneously inspects alignment marks on substrate across full width of the substrate, during exposure of the substrate by an exposing unit (17) to optimize the exposure conditions. An independent claim is also included for a device manufacturing method.