LITHOGRAPHIC PROJECTION APPARATUS
PROBLEM TO BE SOLVED: To provide a liquid supply system for nailing liquid meniscus at a prescribed position in a space between a final element of a projection system and a substrate. SOLUTION: A liquid confinement system used for immersion lithography where a liquid meniscus between a liquid confin...
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Sprache: | eng |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a liquid supply system for nailing liquid meniscus at a prescribed position in a space between a final element of a projection system and a substrate. SOLUTION: A liquid confinement system used for immersion lithography where a liquid meniscus between a liquid confinement system and a substrate is substantially nailed in a prescribed position by a meniscus nailing form is disclosed. The meniscus nailing form has a plurality of discrete outlets arranged in a polygon. COPYRIGHT: (C)2011,JPO&INPIT |
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