PARTICLE SUPPRESSION SYSTEMS AND METHODS

A lithographic apparatus can include an illumination system that conditions a radiation beam, a first stationary plate having a first surface, and a reticle stage defining, along with the first stationary plate, a first chamber. The reticle stage supports a reticle in the first chamber, and the reti...

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Hauptverfasser: YANG-SHAN HUANG, RICHARD JOSEPH BRULS, PETER CONRAD KOCHERSPERGER, MARCEL JOSEPH LOUIS BOONEN, JACOB BRINKERT, HAN-KWANG NIENHUYS
Format: Patent
Sprache:eng
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Zusammenfassung:A lithographic apparatus can include an illumination system that conditions a radiation beam, a first stationary plate having a first surface, and a reticle stage defining, along with the first stationary plate, a first chamber. The reticle stage supports a reticle in the first chamber, and the reticle stage includes a first surface spaced apart from a second surface of the first stationary plate, thereby defining a first gap configured to suppress the amount of contamination passing from a second chamber to the first chamber. The first stationary plate is between the reticle stage and both the illumination system and a projection system configured to project a pattern imparted to the radiation beam by the patterning device onto a substrate.