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Coupling apparatus, exposure apparatus, and device fabricating method

  • US 7,619,715 B2
  • Filed: 12/30/2005
  • Issued: 11/17/2009
  • Est. Priority Date: 07/09/2003
  • Status: Expired due to Fees
First Claim
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1. An exposure apparatus that exposes a substrate via a liquid, comprising:

  • a projection optical system that has a first group including an optical member that contacts said liquid, and a second group that differs from said first group;

    a substrate stage that moves while holding said substrate;

    a first support member that supports said first group;

    a second support member that supports said second group and is different from said first support member; and

    a measuring apparatus that measures a positional relationship between said first group and said second group,wherein said substrate stage is movable with respect to said optical member while said optical member contacts said liquid.

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