Systems and methods for overlay shift determination
    1.
    发明授权
    Systems and methods for overlay shift determination 失效
    覆盖变换确定的系统和方法

    公开(公告)号:US07084427B2

    公开(公告)日:2006-08-01

    申请号:US10250175

    申请日:2003-06-10

    IPC分类号: H01L23/58

    CPC分类号: H01L22/34

    摘要: The systems and methods enable the determination of the magnitude and direction of overlay of at least two elements in two layers. Overlay measurements along two axes can be obtained using four probe pads and without requiring a decoder. Overlay measurements along a single axis can be obtained using three probe pads and without requiring a decoder. The systems and methods according to this invention require less space and are more time efficient than conventional measurement structures. In the systems and methods of this invention, offsets in a direction are calculated from resistance measurements.

    摘要翻译: 这些系统和方法使得能够确定两层中至少两个元素的叠加的大小和方向。 可以使用四个探针焊盘获得两个轴上的叠加测量值,无需解码器。 使用三个探针焊盘可以获得沿着单个轴的覆盖测量,而不需要解码器。 根据本发明的系统和方法需要更少的空间并且比常规测量结构更节约时间。 在本发明的系统和方法中,根据电阻测量计算方向的偏移。

    SYSTEMS AND METHODS FOR OVERLAY SHIFT DETERMINATION
    2.
    发明申请
    SYSTEMS AND METHODS FOR OVERLAY SHIFT DETERMINATION 失效
    用于覆盖层移位确定的系统和方法

    公开(公告)号:US20050019966A1

    公开(公告)日:2005-01-27

    申请号:US10250175

    申请日:2003-06-10

    IPC分类号: H01L23/544 G01R31/26

    CPC分类号: H01L22/34

    摘要: The systems and methods enable the determination of the magnitude and direction of overlay of at least two elements in two layers. Overlay measurements along two axes can be obtained using four probe pads and without requiring a decoder. Overlay measurements along a single axis can be obtained using three probe pads and without requiring a decoder. The systems and methods according to this invention require less space and are more time efficient than conventional measurement structures. In the systems and methods of this invention, offsets in a direction are calculated from resistance measurements.

    摘要翻译: 这些系统和方法使得能够确定两层中至少两个元素的叠加的大小和方向。 可以使用四个探针焊盘获得两个轴上的叠加测量值,无需解码器。 使用三个探针焊盘可以获得沿着单个轴的覆盖测量,而不需要解码器。 根据本发明的系统和方法需要更少的空间并且比常规测量结构更节约时间。 在本发明的系统和方法中,根据电阻测量计算方向的偏移。

    Systems and methods for overlay shift determination
    3.
    发明授权
    Systems and methods for overlay shift determination 失效
    覆盖变换确定的系统和方法

    公开(公告)号:US07550303B2

    公开(公告)日:2009-06-23

    申请号:US11279534

    申请日:2006-04-12

    IPC分类号: H01L21/66 G06F19/00

    CPC分类号: H01L22/34

    摘要: Method for measuring misalignment between at least two layers of an integrated circuit. The method includes applying a current between a plurality of probe members in a first layer, wherein a first probe member and a second probe member of the plurality of probe members are substantially aligned along a first axis and partially overlap an overlay target in a second layer, measuring a voltage across the plurality of probe members wherein at least a voltage across the first probe member and a third probe member disposed perpendicular to the first axis and a voltage across the second probe member and the third probe member are measured, and determining an amount of misalignment between the first layer and the second layer along at least one of the first axis and the second axis based on the measuring steps.

    摘要翻译: 用于测量集成电路的至少两层之间的未对准的方法。 该方法包括在第一层中的多个探针构件之间施加电流,其中多个探针构件中的第一探针构件和第二探针构件沿着第一轴线基本上对准并且部分地与第二层中的覆盖目标重叠 测量所述多个探针构件上的电压,其中测量所述第一探针构件和垂直于所述第一轴线设置的至少一个电压以及横跨所述第二探针构件和所述第三探针构件的电压,并且确定 基于测量步骤沿着第一轴和第二轴的至少一个,第一层和第二层之间的未对准量。