Lithographic apparatus and a method of operating the apparatus

A lithographic apparatus is disclosed that includes a projection system, and a liquid confinement structure configured to at least partly confine immersion liquid to an immersion space defined by the projection system, the liquid confinement structure and a substrate and/or substrate table. Measures...

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Bibliographische Detailangaben
Hauptverfasser: Landheer, Siebe, Jansen, Bauke, Miranda, Marcio Alexandre Cano, Bruls, Richard Joseph, Tanasa, Gheorghe, Thomas, Ivo Adam Johannes, Jorritsma, Laurentius Catrinus, Noordam, Lambertus Dominicus, Van Der Lee, Maurice Martinus Johannes, Jansen, Hans, Meester, Arnout Johannes, Bruijstens, Jeroen Peter Johannes
Format: Patent
Sprache:eng
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Zusammenfassung:A lithographic apparatus is disclosed that includes a projection system, and a liquid confinement structure configured to at least partly confine immersion liquid to an immersion space defined by the projection system, the liquid confinement structure and a substrate and/or substrate table. Measures are taken in the lithographic apparatus, for example, to reduce the effect of droplets on the final element of the projection system or to substantially avoid such droplet formation.