LITHOGRAPHIC APPARATUS, AND DEVICE MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To provide a lithographic apparatus for preventing bubbles from entering a projection beam during image formation. SOLUTION: In a liquid confinement structure of an immersion lithographic apparatus, an elongate continuous opening forms an outlet for supplying liquid to a space...

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Hauptverfasser: SERGEI SHULEPOV, BARAGONA MARCO, CLEMENS JOHANNES GERARDUS VAN DEN DUNGEN, MAIKEL ADRIANUS CORNELIS SCHEPERS, DIREKS DANIEL JOSEPH MARIA, PIETER MULDER, EUMMELEN ERIK HENRICUS EGIDIUS CATHARINA, BESSEMS DAVID
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a lithographic apparatus for preventing bubbles from entering a projection beam during image formation. SOLUTION: In a liquid confinement structure of an immersion lithographic apparatus, an elongate continuous opening forms an outlet for supplying liquid to a space beneath a projection system. The elongate slit forms a region of high shear and pressure gradient that deflects bubbles away from an image field. COPYRIGHT: (C)2011,JPO&INPIT