ALIGNMENT METHOD

Disclosed is a method for determining a stage position or correction therefor in a lithographic process. The method comprises obtaining transmission data describing the transmission of alignment radiation onto the substrate; obtaining position data relating to a stage position of said stage and/or a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HUISMAN, Simeon Reinaid, ALPEGGIANI, Filippo, SOKOLOV, Sergei, GOORDEN, Sebastianus Adrianus
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:Disclosed is a method for determining a stage position or correction therefor in a lithographic process. The method comprises obtaining transmission data describing the transmission of alignment radiation onto the substrate; obtaining position data relating to a stage position of said stage and/or a sensor position of said sensor. A weighting is determined for the position data based on said transmission data. The position based on said transmission data, position data and weighting.