Lithographic apparatus configured to suppress contamination from passing into the projection system and method

A lithographic apparatus includes a projection system configured to project a patterned beam of radiation onto a substrate. The projection system being provided with an opening through which the patterned beam of radiation may pass. At least part of the opening comprises a sloped surface of a wall o...

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Bibliographische Detailangaben
Hauptverfasser: NIENHUYS HAN-KWANG, JONKERS PETER GERARDUS, HUIJBERTS ALEXANDER MARINUS ARNOLDUS
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A lithographic apparatus includes a projection system configured to project a patterned beam of radiation onto a substrate. The projection system being provided with an opening through which the patterned beam of radiation may pass. At least part of the opening comprises a sloped surface of a wall of the projection system and a sloped surface of a mirror of the projection system.