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    • 2. 发明申请
    • MICROLITHOGRAPHIC PROJECTION EXPOSURE SYSTEM, AND METHOD FOR INTRODUCING AN IMMERSION LIQUID INTO AN IMMERSION CHAMBER
    • 微光刻投射曝光装置和方法,用于引入浸渍于液浸ROOM
    • WO2005015315A2
    • 2005-02-17
    • PCT/EP2004007456
    • 2004-07-08
    • ZEISS CARL SMT AGGELLRICH BERNHARDREISINGER GERDSCHMEREK DIETERKUGLER JENS
    • GELLRICH BERNHARDREISINGER GERDSCHMEREK DIETERKUGLER JENS
    • G03F7/20
    • G03F7/70341
    • The invention relates to a projection exposure system for microlithography, said system comprising an illumination device for generating a projection light, and a projection objective comprising a plurality of optical elements such as lenses (L5) and enabling a reticle that can be arranged in an object plane of the projection objective to be imaged onto a light-sensitive surface (26) that can be arranged in an image plane of the projection objective and is applied to a carrier (30). The inventive system is also provided with an immersion device between an image-side last optical element (L5) of the projection objective and the light-sensitive surface (26), for introducing an immersion liquid (34) into an immersion chamber (50). Said immersion device comprises means (44; 66) which can prevent the appearance of gas bubbles (48) in the immersion liquid (34), affecting the imaging quality, and/or can remove existing gas bubbles (48). Said means can be, for example, an ultrasound source (66) or a degasifier (44).
    • 用于微光刻的投射曝光系统包括一个照明装置,用于产生投射光,并且具有多个光学元件,例如一个投影透镜例如 透镜(L5),其可以在投射物镜的物面被布置成与可以在掩模版被设置在所述投影透镜的像面和在载体(30)施加的光敏感表面(26)可以被成像。 此外,提供了用于引入的浸没液体(34)到所述投射物镜的像侧最后光学元件(L5)和感光表面(26)之间的浸没空间(50)的浸入设备。 浸渍装置包括装置(44; 66),通过该能够防止在浸没液体(34)的成像质量损害气泡(48)的发生和/或可能已经被移除时发生气泡(48)。 这些装置可以是,例如 超声波源(66)或一个脱气装置(44)的行为。