Lithographic apparatus, substrate table, and method for enhancing substrate release properties
    56.
    发明授权
    Lithographic apparatus, substrate table, and method for enhancing substrate release properties 有权
    平版印刷装置,基板台,以及增强基板剥离性能的方法

    公开(公告)号:US08792085B2

    公开(公告)日:2014-07-29

    申请号:US12856106

    申请日:2010-08-13

    IPC分类号: G03B27/58 G03F7/20 H01L21/687

    摘要: A lithographic apparatus includes an illumination system constructed and arranged to condition a radiation beam, and a support constructed and arranged to support a patterning device. The patterning device is capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam. The apparatus also includes a substrate table constructed and arranged to hold a substrate, and a projection system constructed and arranged to project the patterned radiation beam onto a target portion of the substrate. The substrate table includes a chuck having a plurality of protrusions constructed and arranged to support corresponding parts of a bottom surface of a wafer. The top surface of at least one of the protrusions includes a plurality of elements that define a reduced contact area between the substrate and the top surface of the protrusion.

    摘要翻译: 光刻设备包括构造和布置成调节辐射束的照明系统,以及构造和布置成支撑图案形成装置的支撑件。 图案形成装置能够在其横截面中赋予辐射束图案以形成图案化的辐射束。 所述装置还包括被构造和布置成保持基板的基板台,以及构造和布置成将图案化的辐射束投影到基板的目标部分上的投影系统。 衬底台包括具有多个突出部的卡盘,所述多个突起被构造和布置成支撑晶片底面的对应部分。 至少一个突起的顶表面包括多个元件,其限定了基板和突起的顶表面之间的减小的接触面积。

    Inspection Method and Apparatus, and Lithographic Apparatus
    57.
    发明申请
    Inspection Method and Apparatus, and Lithographic Apparatus 审中-公开
    检验方法和设备,以及平版印刷设备

    公开(公告)号:US20130162996A1

    公开(公告)日:2013-06-27

    申请号:US13533110

    申请日:2012-06-26

    IPC分类号: G03F7/20

    CPC分类号: G03F7/70633

    摘要: An inspection method reflects radiation with a known polarization beam off a periodic structure, such as a grating. The reflected radiation beam is split into first and second orthogonally polarized sub-beams. The phase of the first sub-beams is shifted with respect to the second sub-beam. A first image resultant from the first sub-beam and a second image resultant from the second sub-beam are simultaneously detected. A difference in intensity values is used to derived from the detected first and second images together to determine an overlay error in the periodic structure.

    摘要翻译: 检查方法将具有已知偏振光束的辐射反射离开诸如光栅的周期性结构。 反射的辐射束被分成第一和第二正交极化子光束。 第一子光束的相位相对于第二子光束移动。 同时检测从第一子光束得到的第一图像和从第二子光束得到的第二图像。 使用强度值的差异从检测到的第一和第二图像导出,以确定周期性结构中的覆盖误差。