Method of measuring the performance of an illumination system
    1.
    发明申请
    Method of measuring the performance of an illumination system 审中-公开
    测量照明系统性能的方法

    公开(公告)号:US20060215140A1

    公开(公告)日:2006-09-28

    申请号:US10540067

    申请日:2003-12-18

    IPC分类号: G03B27/72

    摘要: The performance of an illumination system in, for example, a lithographic projection apparatus can be measured accurately and reliably by means of a test object (55) comprising at least one Fresnel zone lens (30) and an associated reference mark, preferably a ring (40). By superposed imaging of these and detecting and evaluating the composed image (56), telecentricity errors and aberrations of the illumination can be measured.

    摘要翻译: 可以通过包括至少一个菲涅耳区透镜(30)和相关联的参考标记的测试对象(55)来精确和可靠地测量例如光刻投影设备中的照明系统的性能,优选为环( 40)。 通过这些的叠加成像和检测和评估合成图像(56),可以测量照明的远心误差和像差。