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    Method of inspecting for defects and apparatus for performing the method
    3.
    发明授权
    Method of inspecting for defects and apparatus for performing the method 有权
    检查缺陷的方法和执行该方法的装置

    公开(公告)号：US07486392B2

    公开(公告)日：2009-02-03

    申请号：US11476651

    申请日：2006-06-29

    申请人： Yu-Sin Yang ,  Chung-Sam Jun ,  Ki-Suk Chung ,  Tae-Sung Kim ,  Byung-Sug Lee

    发明人： Yu-Sin Yang ,  Chung-Sam Jun ,  Ki-Suk Chung ,  Tae-Sung Kim ,  Byung-Sug Lee

    IPC分类号： G01N21/00

    CPC分类号： G01N21/9501 ,  G01N21/4738

    摘要： In a method of inspecting an object, a first light is irradiated onto a bare object and a first reflection signal is reflected from the bare object. A second light is irradiated onto a processed object and a second reflection signal is reflected from the processed object. The first and second reflection signals are differentiated, to thereby generate respective first and second differential signals. A defect on the processed object is detected by a comparison between the first and second differential signals. The first and second differential signals overlap with each other and at least one signal-deviation portion is detected. The first and second differential signals are spaced apart out of an allowable error range in the signal-deviation portion. The defect is detected from a portion of the processed object corresponding to the signal-deviation portion.

    摘要翻译： 在检查物体的方法中，将第一光照射到裸物体上，并且从裸物体反射第一反射信号。 将第二光照射到经处理的物体上，并且第二反射信号从被处理物体反射。 第一和第二反射信号被微分，从而产生相应的第一和第二差分信号。 通过第一和第二差分信号之间的比较来检测被处理对象的缺陷。 第一和第二差分信号彼此重叠并且检测至少一个信号偏离部分。 第一和第二差分信号在信号偏差部分的允许误差范围之外是间隔开的。 从对应于信号偏离部分的处理对象的一部分检测缺陷。

    Method of inspecting for defects and apparatus for performing the method
    4.
    发明申请
    Method of inspecting for defects and apparatus for performing the method 有权
    检查缺陷的方法和执行该方法的装置

    公开(公告)号：US20070002317A1

    公开(公告)日：2007-01-04

    申请号：US11476651

    申请日：2006-06-29

    申请人： Yu-Sin Yang ,  Chung-Sam Jun ,  Ki-Suk Chung ,  Tae-Sung Kim ,  Byung-Sug Lee

    发明人： Yu-Sin Yang ,  Chung-Sam Jun ,  Ki-Suk Chung ,  Tae-Sung Kim ,  Byung-Sug Lee

    IPC分类号： G01N21/88

    CPC分类号： G01N21/9501 ,  G01N21/4738

    摘要： In a method of inspecting an object, a first light is irradiated onto a bare object and a first reflection signal is reflected from the bare object. A second light is irradiated onto a processed object and a second reflection signal is reflected from the processed object. The first and second reflection signals are differentiated, to thereby generate respective first and second differential signals. A defect on the processed object is detected by a comparison between the first and second differential signals. The first and second differential signals overlap with each other and at least one signal-deviation portion is detected. The first and second differential signals are spaced apart out of an allowable error range in the signal-deviation portion. The defect is detected from a portion of the processed object corresponding to the signal-deviation portion.

    摘要翻译： 在检查物体的方法中，将第一光照射到裸物体上，并且从裸物体反射第一反射信号。 将第二光照射到经处理的物体上，并且第二反射信号从被处理物体反射。 第一和第二反射信号被微分，从而产生相应的第一和第二差分信号。 通过第一和第二差分信号之间的比较来检测被处理对象的缺陷。 第一和第二差分信号彼此重叠并且检测至少一个信号偏离部分。 第一和第二差分信号在信号偏差部分的允许误差范围之外是间隔开的。 从对应于信号偏离部分的处理对象的一部分检测缺陷。

    Method of classifying defects
    5.
    发明授权
    Method of classifying defects 有权
    分类缺陷的方法

    公开(公告)号：US07446865B2

    公开(公告)日：2008-11-04

    申请号：US11421019

    申请日：2006-05-30

    申请人： Ki-Suk Chung ,  Chung-Sam Jun ,  Yu-Sin Yang ,  Byung-Sug Lee ,  Ji-Young Shin ,  Tae-Sung Kim

    发明人： Ki-Suk Chung ,  Chung-Sam Jun ,  Yu-Sin Yang ,  Byung-Sug Lee ,  Ji-Young Shin ,  Tae-Sung Kim

    IPC分类号： G01N21/00

    CPC分类号： G06T7/0004

    摘要： A method of classifying defects of an object includes irradiating multi-wavelength light onto the object, splitting light reflected from the object into light beams, each of the light beams having different wavelengths, obtaining image information of the object based on each of the light beams, forming a characteristic matrix that represent the wavelengths and the image information, and analyzing the characteristic matrix to determine types of the defects on the object. Thus, the defects may be accurately classified using a difference between reactivity of each of the defects in accordance with variations of the wavelengths and inspection conditions.

    摘要翻译： 对物体的缺陷进行分类的方法包括将多波长光照射到物体上，将从物体反射的光分成光束，每个光束具有不同的波长，基于每个光束获得物体的图像信息 ，形成表示波长和图像信息的特征矩阵，并且分析特征矩阵以确定对象上的缺陷的类型。 因此，可以使用根据波长的变化和检查条件的每个缺陷的反应性之间的差异来精确地分类缺陷。