PROJECTION OBJECTIVE FOR A MICROLITHOGRAPHIC PROJECTION EXPOSURE APPARATUS
    2.
    发明公开
    PROJECTION OBJECTIVE FOR A MICROLITHOGRAPHIC PROJECTION EXPOSURE APPARATUS 审中-公开
    微型投影曝光装置的投影目标

    公开(公告)号:EP1714192A1

    公开(公告)日:2006-10-25

    申请号:EP04804317.8

    申请日:2004-12-27

    申请人: Carl Zeiss SMT AG

    IPC分类号: G03F7/20

    摘要: A projection objective of a microlithographic projection exposure apparatus (110) is designed for immersion operation in which an immersion liquid (134) adjoins a photosensitive layer (126). The refractive index of the immersion liquid is greater than the refractive index of a medium (L5; 142; L205; LL7; LL8; LL9). that adjoins the immersion liquid on the object side of the projection objective (120; 120'; 120'). The projection objective is designed such that the immersion liquid (134) is convexly curved towards the object plane (122) during immersion operation.

    摘要翻译: 微光刻投射曝光设备(110)的投影物镜被设计用于浸没操作,其中浸没液体(134)邻接光敏层(126)。 浸液的折射率大于介质(L5; 142; L205; LL7; LL8; LL9)的折射率。 ,其邻接投射物镜(120; 120'; 120')的物体侧上的浸没液体。 投影物镜被设计为使得浸入液体(134)在浸入操作期间朝物面(122)凸出地弯曲。

    OPTICAL SYSTEM OF A MICROLITHOGRAPHIC EXPOSURE SYSTEM
    3.
    发明公开
    OPTICAL SYSTEM OF A MICROLITHOGRAPHIC EXPOSURE SYSTEM 审中-公开
    的微光刻曝光系统光学系统

    公开(公告)号:EP1924890A1

    公开(公告)日:2008-05-28

    申请号:EP06793489.3

    申请日:2006-09-13

    申请人: Carl Zeiss SMT AG

    IPC分类号: G03F7/20

    摘要: An optical system, in particular an illumination system or a projection lens of a microlithographic exposure system, according to one aspect of the present invention has an optical system axis (OA) and at least one element group (200) consisting of three birefringent elements (211 ,212,213) each of which being made of optically uniaxial material and having an aspheric surface, wherein a first birefringent element (211 ) of said group has a first orientation of its optical crystal axis, a second birefringent element (212) of said group has a second orientation of its optical crystal axis, wherein said second orientation can be described as emerging from a rotation of said first orientation, said rotation not corresponding to a rotation around the optical system axis by an angle of 90° or an integer multiple thereof, and a third birefringent element (213) of said group has a third orientation of its optical crystal axis, wherein said third orientation can be described as emerging from a rotation of said second orientation said rotation not corresponding to a rotation around the optical system axis by an angle of 90° or an integer multiple thereof.