Extended defect sizing
    5.
    发明专利
    Extended defect sizing 有权
    扩展缺陷尺寸

    公开(公告)号:JP2005208042A

    公开(公告)日:2005-08-04

    申请号:JP2004308470

    申请日:2004-10-22

    CPC classification number: G01N21/9501

    Abstract: PROBLEM TO BE SOLVED: To provide a system and method of inspecting semiconductor wafers capable of determining the height of a defect on a wafer surface whether or not the scattering power associated with the defect exceeds the dynamic range of the system.
    SOLUTION: In the wafer defect inspection system, when the defect on the wafer surface is detected, the three-dimensional shape of the defect is regarded as a Gaussian shape. A plurality of cross-sectional areas of the Gaussian shape are defined, a respective value of each cross-sectional area is determined, and a respective value of the natural logarithm of intermediate heights of the Gaussian shape corresponding to the cross-sectional areas is determined. The cross-sectional area values are plotted as a function of the natural logarithm of the intermediate height values to form a substantially linear plot, a natural logarithm of the height value corresponding to a zero area value based on the substantially linear plot is determined, and the inverse natural logarithm of the value is determined to obtain the height of the Gaussian shape.
    COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题:提供一种检查能够确定晶片表面上的缺陷的高度的半导体晶片的系统和方法,无论与缺陷相关联的散射功率是否超过系统的动态范围。 解决方案:在晶片缺陷检查系统中,当检测到晶片表面上的缺陷时,缺陷的三维形状被认为是高斯形状。 定义高斯形状的多个横截面面积,确定每个横截面积的相应值,并且确定与横截面积对应的高斯形状的中间高度的自然对数的相应值 。 将横截面积值绘制为中间高度值的自然对数的函数以形成基本上线性的图,确定基于基本上线性的绘图对应于零面积值的高度值的自然对数,以及 确定该值的反自然对数以获得高斯形状的高度。 版权所有(C)2005,JPO&NCIPI

    SEPARATION OF PERIODIC AND NON-PERIODIC SIGNAL COMPONENTS
    6.
    发明申请
    SEPARATION OF PERIODIC AND NON-PERIODIC SIGNAL COMPONENTS 审中-公开
    分离周期性和非周期性信号分量

    公开(公告)号:WO02069077B1

    公开(公告)日:2003-08-28

    申请号:PCT/US0150922

    申请日:2001-10-29

    Applicant: ADE CORP

    CPC classification number: G01H3/08 G01M13/045

    Abstract: A process for obtaining the periodic component in a data vector of data taken of a sensed property of an element driven by one or more rotary components (16b) over several rotations. The procedure comprises first forming the data vector asynchronously with respect to rotation of said one or more rotary components (16b). A series of marker signals representing the rotation of the one or more rotary components (16b) is also established. From these the periodic component of data in said data vector is determined as a function of the data in the data vector and the marker signals.

    Abstract translation: 用于获得数据的数据矢量中的周期性分量的过程,所述周期性分量取自由一个或多个旋转部件(16b)驱动的元件在几次旋转中的感测特性。 该过程包括首先相对于所述一个或多个旋转部件(16b)的旋转异步地形成数据向量。 表示一个或多个旋转部件(16b)的旋转的一系列标记信号也被建立。 从这些数据向量中的数据的周期分量被确定为数据向量中的数据和标记信号的函数。

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