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    • 6. 发明授权
    • Lithographic apparatus and device manufacturing method
    • 平版印刷设备和器件制造方法
    • US07177010B2
    • 2007-02-13
    • US10979798
    • 2004-11-03
    • Hans Van Der LaanUwe MickanMarkus Franciscus Antonius EurlingsJan Bernard Plechelmus Van Schoot
    • Hans Van Der LaanUwe MickanMarkus Franciscus Antonius EurlingsJan Bernard Plechelmus Van Schoot
    • G03B27/42
    • G03F7/70941G03F7/70558G03F7/70666
    • A lithographic apparatus comprises an illumination system for providing a projection beam of radiation, a support structure for supporting patterning device, the patterning device serving to transmit or reflect radiation in the projection beam and impart the projection beam with a pattern in its cross-section, a substrate table for holding a substrate, and a projection system for projecting the patterned beam onto a target portion of the substrate. A sensor is provided for measuring the spatial intensity distribution of the projection beam at the substrate. The spatial distribution of transmission or reflectance of the patterning device, together with the distribution of the projection beam incident on the patterning device, may be determined from the measured intensity distribution. By comparing the transmission or reflectance from regions having identical patterns the overall (macroscopic) distribution of the transmission or reflectance of the patterning device can be determined.
    • 光刻设备包括用于提供投影辐射束的照明系统,用于支撑图案形成装置的支撑结构,所述图案形成装置用于透射或反射投影光束中的辐射并且在其横截面中赋予投影光束图案, 用于保持基板的基板台,以及用于将图案化的光束投影到基板的目标部分上的投影系统。 提供了一种传感器,用于测量投影光束在基板处的空间强度分布。 可以根据测量的强度分布来确定图案形成装置的透射或反射率的空间分布以及入射在图案形成装置上的投影光束的分布。 通过比较具有相同图案的区域的透射率或反射率,可以确定透射率的总体(宏观)分布或图案形成装置的反射率。