Optical measuring method for semiconductor wafer including a plurality of patterns and method of manufacturing semiconductor device using optical measurement

    公开(公告)号:US10410937B2

    公开(公告)日:2019-09-10

    申请号:US16035991

    申请日:2018-07-16

    Abstract: A method of manufacturing a semiconductor device comprising: obtaining a raw light signal by selecting a predetermined wavelength band of light reflected from a wafer on which a plurality of patterns are formed; converting the raw light signal into a frequency domain; obtaining a first detection signal having a first frequency band from the raw light signal converted into the frequency domain; obtaining a second detection signal having a second frequency band from the raw light signal converted into the frequency domain, the second frequency band being different from the first frequency band; obtaining a representative value using the first detection signal, the representative value representing a profile of the plurality of patterns; and obtaining a distribution value using the second detection signal, the distribution value representing a profile of the plurality of patterns using the second detection signal. The method may include determining whether the representative value and the distribution value are within predetermined ranges respectively; and performing a following step of manufacturing the semiconductor device when the representative value and the distribution value are within respective predetermined ranges.

    Method of Inspecting Wafer Using Electron Beam
    13.
    发明申请
    Method of Inspecting Wafer Using Electron Beam 审中-公开
    使用电子束检查晶片的方法

    公开(公告)号:US20160293379A1

    公开(公告)日:2016-10-06

    申请号:US15084059

    申请日:2016-03-29

    Abstract: A method of inspecting a wafer may include: loading of a wafer onto a stage, the wafer having a plurality of dies thereon; positioning of the wafer such that a plurality of electron beam columns on the wafer respectively face a partial region of each of the plurality of dies on the wafer; scanning the respective partial regions of each of the plurality of dies by using the electron beam columns; and combining a plurality of partial images that are obtained by scanning the partial regions to provide a die image.

    Abstract translation: 检查晶片的方法可以包括:将晶片装载到台上,所述晶片在其上具有多个管芯; 晶片的定位使得晶片上的多个电子束列分别面对晶片上的多个管芯中的每一个的部分区域; 通过使用电子束柱扫描多个管芯中的每一个的各个部分区域; 以及组合通过扫描所述部分区域获得的多个部分图像以提供管芯图像。

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