Source collector apparatus, lithographic apparatus and method

A source collector apparatus for use in a lithographic apparatus includes a fuel droplet generator configured in use to generate a stream of fuel droplets directed from an outlet of the fuel droplet generator towards a plasma formation location. In order to prevent droplet satellites from interferin...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Glushkov Denis Alexandrovich, Hultermans Ronald Johannes, Verspeek Christiaan Johannes Petrus, Swinkels Gerardus Hubertus Petrus Maria, Kleemans Niek Antonius Jacobus Maria, Renkens Benedictus Mathijs
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A source collector apparatus for use in a lithographic apparatus includes a fuel droplet generator configured in use to generate a stream of fuel droplets directed from an outlet of the fuel droplet generator towards a plasma formation location. In order to prevent droplet satellites from interfering with plasma formation, a gas supply is provided that in use provides a flow of gas (e.g., hydrogen) that deflects any droplet satellites out of the fuel droplet stream. Additionally, a detection apparatus may be provided as part of a shroud to determine the point at which coalescence of fuel droplets occurs thereby providing an indication of the likelihood of satellite droplets being present in the fuel droplet stream.