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    • 7. 发明授权
    • Lithographic apparatus and positioning apparatus
    • 平版印刷设备和定位设备
    • US07405811B2
    • 2008-07-29
    • US11135637
    • 2005-05-24
    • Marcel Hendrikus Maria BeemsJoe Sakai
    • Marcel Hendrikus Maria BeemsJoe Sakai
    • G03B27/62G03B27/42G03B27/58
    • G03F7/70775
    • A lithographic apparatus comprises a substrate table to hold a substrate, a reference structure and a measurement system to measure a position of the substrate table with respect to the reference structure. The measurement system comprises a first measurement system to measure a position of the substrate table with respect to an intermediate structure and a second measurement system to measure a position of the intermediate structure with respect to the reference structure. The intermediate structure may be connected or connectable to a drive mechanism to drive the substrate table. A distance between the substrate table and the intermediate structure, and a distance between the intermediate structure and the reference structure may be small which results in a highly accurate position measurement.
    • 光刻设备包括用于保持衬底的衬底台,参考结构和测量系统,以测量衬底台相对于参考结构的位置。 测量系统包括测量衬底台相对于中间结构的位置的第一测量系统和用于测量中间结构相对于参考结构的位置的第二测量系统。 中间结构可以连接或连接到驱动机构以驱动衬底台。 衬底台和中间结构之间的距离以及中间结构与参考结构之间的距离可能较小,这导致高度准确的位置测量。