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    • 4. 发明申请
    • ILLUMINATION SYSTEM OF A MICROLITHOGRAPHIC PROJECTION EXPOSURE APPARATUS
    • 微波投影曝光装置的照明系统
    • WO2011137917A1
    • 2011-11-10
    • PCT/EP2010/002780
    • 2010-05-06
    • CARL ZEISS SMT GMBHDEGÜNTHER, MarkusFIOLKA, DamianZIEGLER, Gerhard-Wilhelm
    • DEGÜNTHER, MarkusFIOLKA, DamianZIEGLER, Gerhard-Wilhelm
    • G03F7/20G02B26/08
    • G03F7/70191G02B17/0892G03F7/70116G03F7/70941
    • An illumination system of a microlithographic projection exposure apparatus comprises a spatial light modulator (58) which varies an intensity distribution in a pupil surface (38). The modulator (58) comprises an array (62) of mirrors (64) that reflect impinging projection light (34) into directions that depend on control signals applied to the mirrors. A prism (60), which directs the projection light (34) towards the spatial light modulator (58), has a double pass surface (76) on which the projection light (34) impinges twice, namely a first time when leaving the prism (60) and before it is reflected by the mirrors (64), and a second time when entering the prism (60) and after it has been reflected by the mirrors (64). Pupil perturbation suppressing means are provided that reduce reflections of projection light (34) when it impinges the first time on the double pass surface (76), and/or prevent that light portions (78) being a result of such reflections contribute to the intensity distribution in the pupil surface (38).
    • 微光刻投影曝光装置的照明系统包括改变瞳孔表面(38)中的强度分布的空间光调制器(58)。 调制器(58)包括将入射投影光(34)反射到取决于施加到反射镜的控制信号的方向上的反射镜(64)的阵列(62)。 将投射光(34)引向空间光调制器(58)的棱镜(60)具有双重表面(76),投影光(34)撞击两次,即离开棱镜时第一次 (60)反射之前并且在被反射镜(64)反射之前,以及第二次当进入棱镜(60)并且被反射镜(64)反射之后。 提供了瞳孔扰动抑制装置,当第一次冲击双重表面(76)时减少投影光(34)的反射,和/或防止由于这种反射而导致的光部分(78)有助于强度 分布在瞳孔表面(38)。
    • 9. 发明申请
    • PROJECTION OBJECTIVE FOR MICROLITHOGRAPHY
    • 投影目标的微观算法
    • WO2009043790A3
    • 2009-06-25
    • PCT/EP2008062835
    • 2008-09-25
    • ZEISS CARL SMT AGBEIERL HELMUTFELDMANN HEIKOHETZLER JOCHENTOTZECK MICHAEL
    • BEIERL HELMUTFELDMANN HEIKOHETZLER JOCHENTOTZECK MICHAEL
    • G03F7/20G02B13/14
    • G03F7/70341G02B1/02G02B21/33G03F7/70941
    • An assembly 11 of a projection objective for microlithography comprises a number of optical elements and an aperture 14. The optical element of the assembly 11 before the last optical element oriented towards the image is a planar convex lens 12, whose convex surface 2b is oriented towards the object, and whose planar surface 2a is oriented towards the image. As a last optical element of the assembly 11 oriented towards the image, an optical terminal element 17 is provided which comprises a planar plate 19. Between the planar surface 2b of the lens 12 and the planar plate 19 of the optical terminal element 17, thus at the object oriented surface of the planar plate, and also on the image oriented surface of the planar plate of the terminal element 17 a respective immersion liquid 13b or 13a is provided. The planar plate is thus in contact with the immersion liquids 13a and 13b on both sides. By this configuration it is assured that contaminations within the immersion liquid 13a disposed on the image oriented side do not impair the planar convex lens 12. Replacing the terminal element 17 or the planar plate 19 of the terminal element 17, however, is easily possible, as soon as their imaging properties become insufficient through contamination or other impairments.
    • 用于微光刻的投影物镜的组件11包括多个光学元件和孔14.在朝向图像定向的最后一个光学元件之前的组件11的光学元件是平面凸透镜12,其凸面2b朝向 物体,其平面2a朝向图像。 作为朝向图像的组件11的最后一个光学元件,提供了一个光学端子元件17,其包括平面板19.在透镜12的平面2b和光学端子元件17的平面板19之间,因此 在平面板的物体取向表面以及端子元件17的平面板的图像取向表面上设置相应的浸液13b或13a。 因此,平板与两侧的浸液13a,13b接触。 通过这种结构,确保设置在图像取向侧的浸没液体13a内的污染物不会损害平面凸透镜12.然而,更换终端元件17的端子元件17或平板19是容易的, 一旦它们的成像性质通过污染或其他损伤变得不足。
    • 10. 发明申请
    • PROJECTION OBJECTIVE FOR MICROLITHOGRAPHY
    • 微压印技术的投影目标
    • WO2009043790A2
    • 2009-04-09
    • PCT/EP2008/062835
    • 2008-09-25
    • CARL ZEISS SMT AGBEIERL, HelmutFELDMANN, HeikoHETZLER, JochenTOTZECK, Michael
    • BEIERL, HelmutFELDMANN, HeikoHETZLER, JochenTOTZECK, Michael
    • G03F7/20G02B13/14
    • G03F7/70341G02B1/02G02B21/33G03F7/70941
    • An assembly 11 of a projection objective for microlithography comprises a number of optical elements and an aperture 14. The optical element of the assembly 11 before the last optical element oriented towards the image is a planar convex lens 12, whose convex surface 2b is oriented towards the object, and whose planar surface 2a is oriented towards the image. As a last optical element of the assembly 11 oriented towards the image, an optical terminal element 17 is provided which comprises a planar plate 19. Between the planar surface 2b of the lens 12 and the planar plate 19 of the optical terminal element 17, thus at the object oriented surface of the planar plate, and also on the image oriented surface of the planar plate of the terminal element 17 a respective immersion liquid 13b or 13a is provided. The planar plate is thus in contact with the immersion liquids 13a and 13b on both sides. By this configuration it is assured that contaminations within the immersion liquid 13a disposed on the image oriented side do not impair the planar convex lens 12. Replacing the terminal element 17 or the planar plate 19 of the terminal element 17, however, is easily possible, as soon as their imaging properties become insufficient through contamination or other impairments.
    • 用于微光刻的投影物镜的组件11包括多个光学元件和孔14.在朝向图像定向的最后一个光学元件之前的组件11的光学元件是平面凸透镜12 ,其凸面2b朝向物体取向,并且其平面表面2a朝向图像取向。 作为朝向图像定向的组件11的最后一个光学元件,提供包括平面板19的光学终端元件17.因此,在透镜12的平面表面2b和光学终端元件17的平面平板19之间 在平面板的物体定向表面上以及在终端元件17的平面板的图像定向表面上提供相应的浸没液体13b或13a。 因此平面板在两侧与浸液13a和13b接触。 通过这种配置,可以确保设置在图像取向侧的浸液13a内的污染不会损害​​平面凸透镜12.然而,更换端子元件17或端子元件17的平板19是容易的, 只要其成像特性因污染或其他损伤而变得不足。