Catadioptric projection objective including an aspherized plate
    2.
    发明授权
    Catadioptric projection objective including an aspherized plate 有权
    反射折射投影物镜包括非球面板

    公开(公告)号:US08804234B2

    公开(公告)日:2014-08-12

    申请号:US13495763

    申请日:2012-06-13

    IPC分类号: G02B17/00 G02B21/00

    摘要: A catadioptric projection objective for imaging a pattern onto an image plane includes: a first objective part for imaging the pattern into a first intermediate image; a second objective part for imaging the first intermediate image into a second intermediate image; and a third objective part for imaging the second intermediate image onto the image plane. A first concave mirror having a continuous mirror surface and a second concave mirror having a continuous mirror surface are upstream of the second intermediate image. A pupil surface is formed between the object plane and the first intermediate image, between the first and the second intermediate image, and between the second intermediate image and the image plane. A plate having essentially parallel plate surfaces is positioned in the first objective part near the pupil surface. At least one plate surface is aspherized to correct for aberrations.

    摘要翻译: 用于将图案成像到图像平面上的反射折射投射物镜包括:用于将图案成像为第一中间图像的第一物镜部分; 第二目标部分,用于将第一中间图像成像为第二中间图像; 以及用于将第二中间图像成像到图像平面上的第三目标部分。 具有连续镜面的第一凹面镜和具有连续镜面的第二凹面镜位于第二中间图像的上游。 在物平面和第一中间图像之间,在第一和第二中间图像之间以及在第二中间图像和图像平面之间形成瞳孔表面。 具有基本上平行的板表面的板被定位在瞳孔表面附近的第一物镜部分中。 至少一个板表面被挤压以校正像差。

    CATADIOPTRIC PROJECTION OBJECTIVE
    5.
    发明申请
    CATADIOPTRIC PROJECTION OBJECTIVE 有权
    目标投影目标

    公开(公告)号:US20110235167A1

    公开(公告)日:2011-09-29

    申请号:US13153544

    申请日:2011-06-06

    IPC分类号: G02B17/08

    摘要: A catadioptric projection objective for imaging a pattern provided in an object plane of the projection objective onto an image plane of the projection objective comprises: a first objective part for imaging the pattern provided in the object plane into a first intermediate image; a second objective part for imaging the first intermediate imaging into a second intermediate image; a third objective part for imaging the second intermediate imaging directly onto the image plane; wherein a first concave mirror having a first continuous mirror surface and at least one second concave mirror having a second continuous mirror surface are arranged upstream of the second intermediate image; pupil surfaces are formed between the object plane and the first intermediate image, between the first and the second intermediate image and between the second intermediate image and the image plane; and all concave mirrors are arranged optically remote from a pupil surface. The system has potential for very high numerical apertures at moderate lens material mass consumption.

    摘要翻译: 用于将设置在投影物镜的物平面中的图案成像到投影物镜的像平面上的反射折射投射物镜包括:用于将设置在物平面中的图案成像为第一中间图像的第一物镜部分; 第二目标部分,用于将第一中间成像成像成第二中间图像; 用于将第二中间成像直接成像到图像平面上的第三目标部分; 其中具有第一连续镜面的第一凹面镜和具有第二连续镜面的至少一个第二凹面镜布置在所述第二中间图像的上游; 瞳孔表面形成在物平面与第一中间图像之间,第一和第二中间图像之间以及第二中间图像与图像平面之间; 并且所有凹面反射镜光学地远离光瞳表面布置。 该系统具有中等透镜材料质量消耗的非常高的数值孔径的潜力。