Lithographic apparatus and device manufacturing method

A lithographic apparatus includes a projection system configured to project a patterned radiation beam onto a target portion of a substrate. The apparatus also includes a barrier member, surrounding a space between the projection system and, in use, the substrate, to define in part with the projecti...

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Hauptverfasser: BECKERS MARCEL, BRUIJSTENS JEROEN PETER JOHANNES, THOMAS IVO ADAM JOHANNES, VAN DE KERKHOF MARCUS ADRIANUS, JANSSEN FRANCISCUS JOHANNES JOSEPH, VAN OERLE BARTHOLOMEUS MATHIAS, MAAS WOUTERUS JOHANNES PETRUS MARIA, LANDHEER SIEBE
Format: Patent
Sprache:eng
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Zusammenfassung:A lithographic apparatus includes a projection system configured to project a patterned radiation beam onto a target portion of a substrate. The apparatus also includes a barrier member, surrounding a space between the projection system and, in use, the substrate, to define in part with the projection system a reservoir for liquid. A radially outer surface of the barrier member facing a portion of projection system and a radially outer surface of the portion of the projection system facing the barrier member each have a liquidphobic outer surface. The liquidphobic outer surface of the barrier member and/or the liquidphobic outer surface of the portion of the projection system has an inner edge that defines in part the reservoir.