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    • 9. 发明申请
    • LITHOGRAPHIC APPARATUS AND METHOD
    • LITHOGRAPHIC设备和方法
    • US20120105818A1
    • 2012-05-03
    • US13378913
    • 2010-06-07
    • Jan Bernard Plechelmus Van SchootGosse Charles De Vries
    • Jan Bernard Plechelmus Van SchootGosse Charles De Vries
    • G03B27/54F21V7/04
    • G03F7/702G03F7/70075G03F7/70116
    • An illumination system having a plurality of reflective elements, the reflective elements being movable between different orientations which direct radiation towards different locations in a pupil plane, thereby forming different illumination modes. Each reflective element is moveable to a first orientation in which it directs radiation to a location in an inner illumination location group, to a second orientation in which it directs radiation to a location in an intermediate illumination location group, and to a third orientation in which it directs radiation to a location in an outer illumination location group. The reflective elements are configured to be oriented to direct equal amounts of radiation towards the inner, intermediate and outer illumination location groups, and are configured to be oriented such that they can direct substantially no radiation into the outer illumination location group and direct substantially equal amounts of radiation towards the inner and intermediate illumination location groups.
    • 一种具有多个反射元件的照明系统,所述反射元件可在不同取向之间移动,所述不同取向将辐射导向光瞳平面中的不同位置,从而形成不同的照明模式。 每个反射元件可移动到第一取向,其中它将辐射引导到内照明位置组中的位置,到第二方向,其中它将辐射引导到中间照明位置组中的位置,并且其中第三方向 它将辐射引导到外部照明位置组中的位置。 反射元件被配置为被定向成将等量的辐射引导到内部,中间和外部照明位置组,并且被配置为被定向成使得它们可以基本上不将辐射引导到外部照明位置组中并且引导基本相等的量 的辐射朝向内部和中间照明位置组。