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    • 11. 发明申请
    • EXPOSURE APPARATUS AND DEVICE MANUFACTURING METHOD
    • 曝光装置和装置制造方法
    • US20140300878A1
    • 2014-10-09
    • US14311918
    • 2014-06-23
    • NIKON CORPORATIONNIKON ENGINEERING CO., LTD.
    • Hiroyuki NAGASAKATakeshi OKUYAMA
    • G03F7/20
    • G03F7/70883G03F7/70341
    • In an immersion exposure apparatus, a projection system includes an optical element having a light emitting surface that contacts immersion liquid and an outer surface above the light emitting surface. A holding member holds the optical element, and a liquid confinement member surrounds the optical element to form a gap between the optical element and the liquid confinement member. The outer surface of the optical element includes a first part extending upwardly with respect to the light emitting surface, and a second part above the gap and extending radially outwardly with respect to the first part. The gap is between the first part and an inner surface of the liquid confinement member, which has an upper surface extending radially outwardly with respect to the inner surface. The holding member holds the optical element over a portion of the upper surface of the liquid confinement member.
    • 在浸渍曝光装置中,投影系统包括具有与浸没液接触的发光面和发光面上方的外表面的光学元件。 保持构件保持光学元件,并且液体限制构件围绕光学元件以在光学元件和液体限制构件之间形成间隙。 光学元件的外表面包括相对于发光表面向上延伸的第一部分和在间隙上方的第二部分,并相对于第一部分径向向外延伸。 间隙位于液体限制构件的第一部分和内表面之间,其具有相对于内表面径向向外延伸的上表面。 保持构件将光学元件保持在液体限制构件的上表面的一部分上。