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    • 4. 发明授权
    • Charged particle beam apparatus
    • 带电粒子束装置
    • US08405026B2
    • 2013-03-26
    • US12554275
    • 2009-09-04
    • Tomoyasu ShojoMuneyuki FukudaNaomasa SuzukiNoritsugu Takahashi
    • Tomoyasu ShojoMuneyuki FukudaNaomasa SuzukiNoritsugu Takahashi
    • H01J3/14G01N23/00
    • H01J37/153H01J37/04H01J37/28
    • Disclosed herewith is a charged particle beam apparatus capable of controlling each of the probe current and the objective divergence angle to obtain a desired probe current and a desired objective divergence angle in accordance with the diameter of the subject objective aperture. The apparatus is configured to include an objective aperture between first and second condenser lenses to calculate and set a control value of a first condenser lens in accordance with the diameter of the hole of the objective aperture so as to obtain a desired probe current and calculate a control value of a second condenser lens setting device in accordance with the diameter of the hole of the objective divergence angle and the control value of the second condenser lens setting device, thereby setting the calculated control value for the second condenser lens setting device to control the objective divergence angle.
    • 本文公开了一种带电粒子束装置,其能够根据目标物镜孔径来控制探针电流和物镜发散角度,以获得所需的探针电流和期望的物体发散角。 该装置被配置为在第一和第二聚光透镜之间包括物镜孔,以根据物镜孔的直径来计算和设置第一聚光透镜的控制值,以获得所需的探针电流,并计算 根据目标发散角的孔的直径和第二聚光透镜设定装置的控制值的第二聚光透镜设定装置的控制值,由此设定计算出的第二聚光透镜设定装置的控制值, 客观发散角。
    • 6. 发明授权
    • Charged particle beam apparatus, scanning electron microscope, and sample observation method using the same
    • 带电粒子束装置,扫描电子显微镜和使用其的样品观察方法
    • US07557347B2
    • 2009-07-07
    • US11882701
    • 2007-08-03
    • Tomoyasu ShojoMuneyuki FukudaNaomasa Suzuki
    • Tomoyasu ShojoMuneyuki FukudaNaomasa Suzuki
    • G01N23/00G21K7/00
    • H01J37/244H01J37/153H01J37/28H01J2237/057H01J2237/2448H01J2237/24485H01J2237/2449H01J2237/24592
    • A charged particle beam apparatus for acquiring high-definition and highly contrasted observation images by detecting efficiently secondary signals without increasing aberration of the primary electron beam, detecting defects from observation images and thus increasing the inspection speed and enhancing the sensitivity of inspection. The desired area of the sample is scanned with a primary charged particle beam, and the secondary charged particles generated secondarily from the area by the irradiation of the primary charged particle beam are led to collide with the secondary electron conversing electrode, and then the secondary electrons generated by the first E×B deflector 31 arranged through an insulator on the surface of the secondary electron conversing electrode on the side of the sample is absorbed by the detector. At the same time, the deflection chromatic aberration that had been generated in the primary charged particle beam by the first E×B deflector is reduced by the second E×B deflector arranged on the first E×B deflector, to obtain high-definition and highly contrasted observation images free of shading.
    • 一种带电粒子束装置,用于通过高效检测二次信号而不增加一次电子束的像差,从观察图像中检测缺陷,从而提高检查速度,提高检查灵敏度,从而获取高分辨率和高对比度的观察图像。 用初级带电粒子束扫描样品的期望面积,并且通过初级带电粒子束的照射从该区域二次生成的二次带电粒子被引导与二次电子转换电极碰撞,然后二次电子 由通过检测器侧面上的二次电子转换电极的表面上的绝缘体布置的第一ExB偏转器31产生的。 同时,通过布置在第一ExB偏转器上的第二ExB偏转器减少由第一ExB偏转器在一次带电粒子束中产生的偏转色差,以获得高清晰度和高对比度的观察图像, 阴影。