Exposure apparatus
Abstract
An exposure apparatus that can prevent disadvantages due to a leaked liquid is provided. The exposure apparatus includes a substrate holder that includes a peripheral wall portion and supporting portions located on an inside of the peripheral wall portion and that supports a substrate with the supporting portions by negatively pressurizing a space surrounded by the peripheral wall portion, and a recovery mechanism that includes a collection inlets provided on the inside of the peripheral wall portion and a vacuum system connected to the collection inlets, in which a liquid penetrated from an outer periphery of the substrate is sucked and recovered, in the state with an upper surface of the peripheral wall portion and a back surface of the substrate being spaced at a first distance.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A liquid immersion exposure apparatus comprising:
a projection system; a nozzle member having an opening via which an exposure light is projected, the nozzle member having a supply port facing downwardly and a recovery port facing downwardly; and a substrate stage on which a substrate is held, wherein the substrate stage has (i) an upper surface on a portion of which a liquid immersion area is formed, the upper surface including a liquid repellent surface, (ii) a peripheral wall portion having an upper surface facing a back surface of the held substrate and (iii) a supporting portion located on an inside of the peripheral wall portion, by which the substrate is supported, and wherein the substrate stage has a recovery port for collecting liquid which comes from a gap between the upper surface of the substrate stage and an upper surface of the held substrate.Join the waitlist — get patent alerts
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