Invention Grant
US09304392B2 Exposure apparatus and method for producing device 有权
曝光装置及其制造方法

Exposure apparatus and method for producing device
Abstract:
A liquid immersion exposure apparatus comprising: a projection system, a stage system having a holder that holds a substrate, a supply port that is arranged such that an upper surface of the substrate faces the supply port, and a recovery port that is arranged to surround the supply port and collects an immersion liquid from the upper surface of the substrate such that only a portion of the upper surface of the substrate is covered with the immersion liquid. The apparatus also comprises an alignment system which detects an alignment mark of the substrate not through the immersion liquid. The substrate held on the holder is positioned based on a detection result of the alignment system to align the substrate with an exposure light projected through the immersion liquid by the projection system.
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