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    • 7. 发明申请
    • SPECIMEN OBSERVATION METHOD AND DEVICE USING SECONDARY EMISSION ELECTRON AND MIRROR ELECTRON DETECTION
    • 使用二次发射电子和物镜电子检测的样本观测方法和装置
    • US20150060666A1
    • 2015-03-05
    • US14533974
    • 2014-11-05
    • EBARA CORPORATION
    • Masahiro HatakeyamaTakeshi MurakamiYoshihiko NaitoKenji TeraoNorio KimuraKenji Watanabe
    • H01J37/28H01J37/22
    • H01J37/28H01J37/22H01J37/244H01J37/29H01J2237/24475H01J2237/24585H01J2237/24592H01J2237/2805H01J2237/2806H01J2237/2817H01L22/12
    • A technique capable of improving the ability to observe a specimen using an electron beam in an energy region which has not been conventionally given attention is provided. This specimen observation method comprises: irradiating the specimen with an electron beam; detecting electrons to be observed which have been generated and have obtained information on the specimen by the electron beam irradiation; and generating an image of the specimen from the detected electrons to be observed. The electron beam irradiation comprises irradiating the specimen with the electron beam with a landing energy set in a transition region between a secondary emission electron region in which secondary emission electrons are detected and a mirror electron region in which mirror electrons are detected, thereby causing the secondary emission electrons and the mirror electrons to be mixed as the electrons to be observed. The detection of the electrons to be observed comprises performing the detection in a state where the secondary emission electrons and the mirror electrons are mixed. Observation and inspection can be quickly carried out for a fine foreign material and pattern of 100 nm or less.
    • 提供了一种技术,其能够提高在未经常被注意的能量区域中使用电子束观察样本的能力。 该样本观察方法包括:用电子束照射样本; 检测已经产生的待观察的电子,并通过电子束照射获得关于样品的信息; 以及从所检测的电子产生待观察的样本的图像。 电子束照射包括用电子束照射样本,其中在其中检测到二次发射电子的二次发射电子区域和其中检测到反射镜电子的镜电子区域之间的过渡区域中设置的着陆能量,从而使次级 发射电子和镜电子作为待观察的电子进行混合。 要观察的电子的检测包括在二次发射电子和镜电子混合的状态下进行检测。 对于100nm以下的细小异物和图案,可以快速进行观察和检查。