ILLUMINATION OPTICS FOR PROJECTION MICROLITHOGRAPHY AND RELATED METHODS
    6.
    发明申请
    ILLUMINATION OPTICS FOR PROJECTION MICROLITHOGRAPHY AND RELATED METHODS 审中-公开
    用于投影微结构的照明光学及相关方法

    公开(公告)号:US20090262324A1

    公开(公告)日:2009-10-22

    申请号:US12464730

    申请日:2009-05-12

    IPC分类号: G03B27/80

    CPC分类号: G03F7/7085 G03F7/70116

    摘要: A microlithographic projection exposure apparatus (1) comprises an illumination system (4) with an illumination optics (5) for illuminating an illumination field in a reticle plane (6). The illumination optics (5) further includes a light distribution device (12a) which comprises a light deflection array (12) of separate elements and an optical assembly (21, 23 to 26) which converts the light intensity distribution defined by the light distribution device (12a) in a first plane (19) of the illumination optics (5) into an illumination angle distribution in the reticle plane (6). Downstream of an output coupling device (17), which is arranged in the light path between the light deflection array (12) and the reticle plane (6), a space and time resolving detection device (30) is exposed to outcoupled illumination light (31) in such a way that the detection device (30) detects a light intensity distribution corresponding to the light intensity distribution in the first plane (19). The detection device (30) allows the influence of separate elements or groups of separate elements on the light intensity distribution in the first plane (19) to be determined, particularly by varying said separate elements or groups of separate elements over time. The result is an illumination optics in which the function of the light deflection array is performed during normal operation.

    摘要翻译: 微光刻投影曝光装置(1)包括具有用于照亮标线板平面(6)中的照明场的照明光学器件(5)的照明系统(4)。 照明光学器件(5)还包括配光装置(12a),其包括分离元件的光偏转阵列(12)和光学组件(21,23至26),该光学组件(21,23至26)将由光分配装置 (5)的第一平面(19)中的光线(12a)成为所述掩模版平面(6)中的照明角度分布。 布置在光偏转阵列(12)和光罩平面(6)之间的光路中的输出耦合装置(17)的下游,空间和时间分辨检测装置(30)暴露于外耦合照明光 31),使得检测装置(30)检测对应于第一平面(19)中的光强度分布的光强度分布。 检测装置(30)允许确定分离的元件或单独元件组对第一平面(19)中的光强度分布的影响,特别是通过随时间改变所述单独元件或单独元件组。 结果是在正常操作期间执行光偏转阵列的功能的照明光学器件。

    Microlithographic projection exposure apparatus
    7.
    发明授权
    Microlithographic projection exposure apparatus 有权
    微光刻投影曝光装置

    公开(公告)号:US08891057B2

    公开(公告)日:2014-11-18

    申请号:US12818501

    申请日:2010-06-18

    IPC分类号: G03B27/42 G03F7/20

    摘要: A projection exposure apparatus for microlithography comprises illumination optics for illuminating object field points of an object field in an object plane is disclosed. The illumination optics have, for each object field point of the object field, an exit pupil associated with the object point, where sin(γ) is a greatest marginal angle value of the exit pupil. The illumination optics include a multi-mirror array that includes a plurality of mirrors to adjust an intensity distribution in exit pupils associated to the object field points. The illumination optics further contain at least one optical system to temporally stabilize the illumination of the multi-mirror array so that, for each object field point, the intensity distribution in the associated exit pupil deviates from a desired intensity distribution in the associated exit pupil in the case of a centroid angle value sin(β) by less than 2% expressed in terms of the greatest marginal angle value sin(γ) of the associated exit pupil and/or, in the case of ellipticity by less than 2%, and/or in the case of a pole balance by less than 2%.

    摘要翻译: 公开了一种用于微光刻的投影曝光装置,包括用于照射物平面中的物场的对象场点的照明光学装置。 对于物场的每个物场点,照明光学器件具有与对象点相关联的出射光瞳,其中sin(γ)是出射光瞳的最大边缘角度值。 照明光学器件包括多镜阵列,其包括多个反射镜以调整与对象场点相关联的出射光瞳中的强度分布。 照明光学器件还包含至少一个光学系统,用于暂时稳定多镜阵列的照明,使得对于每个物体场点,相关出射光瞳中的强度分布偏离相关联的出射光瞳中的期望强度分布 以关联出射光瞳的最大边缘角度值sin(γ)表示的质心角值sin(&bgr)小于2%的情况和/或在椭圆度小于2%的情况下, 和/或在极平衡小于2%的情况下。

    Illumination system for a microlithographic projection exposure apparatus
    8.
    发明授权
    Illumination system for a microlithographic projection exposure apparatus 有权
    用于微光刻投影曝光装置的照明系统

    公开(公告)号:US08004656B2

    公开(公告)日:2011-08-23

    申请号:US11505408

    申请日:2006-08-17

    摘要: An illumination system for a microlithographic projection exposure step-and-scan apparatus has a light source, a first optical raster element and a second optical raster element. The first optical raster element extends in a first pupil plane of the illumination system and is designed such that the geometrical optical flux of the system is increased perpendicular to a scan direction of the projection exposure apparatus. The second optical raster element extends in a second pupil plane of the illumination system, which is not necessarily different from the first pupil plane, and is designed such that the geometrical optical flux of the system is increased in the scan direction and perpendicular thereto. This makes it possible to improve the irradiance uniformity in a reticle plane.

    摘要翻译: 用于微光刻投影曝光步进扫描装置的照明系统具有光源,第一光栅元件和第二光栅元件。 第一光栅元件在照明系统的第一光瞳平面中延伸,并且被设计成使得系统的几何光通量垂直于投影曝光设备的扫描方向增加。 第二光栅元件在照明系统的第二光瞳平面中延伸,其不一定与第一光瞳平面不同,并且被设计成使得系统的几何光通量在扫描方向上和垂直于其上增加。 这使得可以提高掩模版平面中的辐照度均匀性。

    MICROLITHOGRAPHIC PROJECTION EXPOSURE APPARATUS
    9.
    发明申请
    MICROLITHOGRAPHIC PROJECTION EXPOSURE APPARATUS 有权
    微波投影曝光装置

    公开(公告)号:US20100283985A1

    公开(公告)日:2010-11-11

    申请号:US12818844

    申请日:2010-06-18

    IPC分类号: G03B27/54

    摘要: A projection exposure apparatus for microlithography comprises illumination optics for illuminating object field points of an object field in an object plane is disclosed. The illumination optics have, for each object field point of the object field, an exit pupil associated with the object point, where sin(γ) is a greatest marginal angle value of the exit pupil. The illumination optics include a multi-mirror array that includes a plurality of mirrors to adjust an intensity distribution in exit pupils associated to the object field points. The illumination optics further contain at least one optical system to temporally stabilize the illumination of the multi-mirror array so that, for each object field point, the intensity distribution in the associated exit pupil deviates from a desired intensity distribution in the associated exit pupil in the case of a centroid angle value sin(β) by less than 2% expressed in terms of the greatest marginal angle value sin(γ) of the associated exit pupil and/or, in the case of ellipticity by less than 2%, and/or in the case of a pole balance by less than 2%.

    摘要翻译: 公开了一种用于微光刻的投影曝光装置,包括用于照射物平面中的物场的对象场点的照明光学装置。 对于物场的每个物场点,照明光学器件具有与对象点相关联的出射光瞳,其中sin(γ)是出射光瞳的最大边缘角度值。 照明光学器件包括多镜阵列,其包括多个反射镜以调整与对象场点相关联的出射光瞳中的强度分布。 照明光学器件还包含至少一个光学系统,用于暂时稳定多镜阵列的照明,使得对于每个物体场点,相关出射光瞳中的强度分布偏离相关联的出射光瞳中的期望强度分布 以关联出射光瞳的最大边缘角度值sin(γ)表示的质心角值sin(&bgr)小于2%的情况和/或在椭圆度小于2%的情况下, 和/或在极平衡小于2%的情况下。