Method for enhancing the measuring accuracy when determining the coordinates of structures on a substrate
    1.
    发明授权
    Method for enhancing the measuring accuracy when determining the coordinates of structures on a substrate 有权
    确定衬底上结构坐标时提高测量精度的方法

    公开(公告)号:US07528960B2

    公开(公告)日:2009-05-05

    申请号:US11803553

    申请日:2007-05-15

    IPC分类号: G01B11/02

    摘要: A method for the high-precision measurement of coordinates of at least one structure on a substrate. A stage traversable in X/Y coordinate directions is provided, which is placed in an interferometric-optical measuring system. The structure on the substrate is imaged on at least one detector (34) via a measuring objective (21) having its optical axis (20) aligned in the Z coordinate direction. The structure is imaged with the so-called Dual Scan. Systematic errors can thereby be eliminated.

    摘要翻译: 一种用于高精度测量衬底上至少一个结构的坐标的方法。 提供了在X / Y坐标方向上可移动的平台,其被放置在干涉光学测量系统中。 通过其光轴(20)在Z坐标方向上排列的测量物镜(21)将基板上的结构成像在至少一个检测器(34)上。 该结构用所谓的双扫描成像。 因此可以消除系统错误。

    Method for enhancing the measuring accuracy when determining the coordinates of structures on a substrate
    2.
    发明申请
    Method for enhancing the measuring accuracy when determining the coordinates of structures on a substrate 有权
    确定衬底上结构坐标时提高测量精度的方法

    公开(公告)号:US20070268496A1

    公开(公告)日:2007-11-22

    申请号:US11803553

    申请日:2007-05-15

    IPC分类号: G01B11/02 G01B11/00

    摘要: A method for the high-precision measurement of coordinates of at least one structure on a substrate. A stage traversable in X/Y coordinate directions is provided, which is placed in an interferometric-optical measuring system. The structure on the substrate is imaged on at least one detector (34) via a measuring objective (21) having its optical axis (20) aligned in the Z coordinate direction. The structure is imaged with the so-called Dual Scan. Systematic errors can thereby be eliminated.

    摘要翻译: 一种用于高精度测量衬底上至少一个结构的坐标的方法。 提供了在X / Y坐标方向上可移动的平台,其被放置在干涉光学测量系统中。 通过其光轴(20)在Z坐标方向上排列的测量物镜(21)将基板上的结构成像在至少一个检测器(34)上。 该结构用所谓的双扫描成像。 因此可以消除系统错误。