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    • 1. 发明授权
    • Method and apparatus for scanning transmission electron microscopy
    • 扫描透射电子显微镜的方法和装置
    • US06531697B1
    • 2003-03-11
    • US09259334
    • 1999-03-01
    • Kuniyasu NakamuraHiroshi KakibayashiMikio IchihashiShigeto IsakozawaYuji SatoTakahito Hashimoto
    • Kuniyasu NakamuraHiroshi KakibayashiMikio IchihashiShigeto IsakozawaYuji SatoTakahito Hashimoto
    • H01J3700
    • H01J37/1471H01J37/28H01J2237/2802
    • A scanning transmission electron microscope (STEM) has an electron source for generating a primary electron beam and an electron illuminating lens system for converging the primary electron beam from the electron source onto a specimen for illumination. An electron deflecting system is provided for scanning the specimen with the primary electron beam. The STEM also has a scattered electron detector for detecting scattered electrons transmitted through the specimen. A projection lens system projects the scattered electrons onto a detection surface of the scattered electron detector. An image displaying device displays the scanning transmission electron microscope image of the specimen using a detection signal from the scattered electron detector. A detection angle changing device for establishes the range of the scattering angle of the scattered electrons detected by the scattered electron detector. This structure enhances the contrast of a desired portion of the specimen under observation for a scanning transmitted image by selective establishment of detection angle ranges for the scattered electron detector.
    • 扫描透射电子显微镜(STEM)具有用于产生一次电子束的电子源和用于将来自电子源的一次电子束聚焦到用于照明的样本上的电子照明透镜系统。 提供电子偏转系统用于用一次电子束扫描样本。 STEM还具有散射电子检测器,用于检测通过样品传播的散射电子。 投影透镜系统将散射的电子投射到散射电子检测器的检测表面上。 图像显示装置使用来自散射电子检测器的检测信号来显示样本的扫描透射电子显微镜图像。 一种用于确定由散射电子检测器检测的散射电子的散射角的范围的检测角度改变装置。 该结构通过选择性地建立散射电子检测器的检测角度范围,增强了扫描透射图像观察下的样本的期望部分的对比度。
    • 2. 发明授权
    • Method and apparatus for scanning transmission electron microscopy
    • 扫描透射电子显微镜的方法和装置
    • US06822233B2
    • 2004-11-23
    • US10346138
    • 2003-01-17
    • Kuniyasu NakamuraHiroshi KakibayashiMikio IchihashiShigeto IsakozawaYuji SatoTakahito Hashimoto
    • Kuniyasu NakamuraHiroshi KakibayashiMikio IchihashiShigeto IsakozawaYuji SatoTakahito Hashimoto
    • H01J3704
    • H01J37/1471H01J37/28H01J2237/2802
    • A scanning transmission electron microscope (STEM) has an electron source for generating a primary electron beam and an electron illuminating lens system for converging the primary electron beam from the electron source onto a specimen for illumination. An electron deflecting system is provided for scanning the specimen with the primary electron beam. The STEM also has a scattered electron detector for detecting scattered electrons transmitted through the specimen. A projection lens system projects the scattered electrons onto a detection surface of the scattered electron detector. An image displaying device displays the scanning transmission electron microscope image of the specimen using a detection signal from the scattered electron detector. A detection angle changing device for establishes the range of the scattering angle of the scattered electrons detected by the scattered electron detector. This structure enhances the contrast of a desired portion of the specimen under observation for a scanning transmitted image by selective establishment of detection angle ranges for the scattered electron detector.
    • 扫描透射电子显微镜(STEM)具有用于产生一次电子束的电子源和用于将来自电子源的一次电子束聚焦到用于照明的样本上的电子照明透镜系统。 提供电子偏转系统用于用一次电子束扫描样本。 STEM还具有散射电子检测器,用于检测通过样品传播的散射电子。 投影透镜系统将散射的电子投射到散射电子检测器的检测表面上。 图像显示装置使用来自散射电子检测器的检测信号来显示样本的扫描透射电子显微镜图像。 一种用于确定由散射电子检测器检测的散射电子的散射角的范围的检测角度改变装置。 该结构通过选择性地建立散射电子检测器的检测角度范围,增强了扫描透射图像观察下的样本的期望部分的对比度。
    • 5. 发明授权
    • Electron microscope
    • 电子显微镜
    • US5552602A
    • 1996-09-03
    • US398684
    • 1995-03-06
    • Hiroshi KakibayashiYasuhiro MitsuiHideo TadokoroKatsuhiro KurodaMasanari KoguchiKazutaka TsujiTatsuo MakishimaMikio IchihashiShigeto Isakozawa
    • Hiroshi KakibayashiYasuhiro MitsuiHideo TadokoroKatsuhiro KurodaMasanari KoguchiKazutaka TsujiTatsuo MakishimaMikio IchihashiShigeto Isakozawa
    • G01N23/04G01R31/305H01J37/26
    • G01R31/305G01N23/046G01N2223/419H01J2237/226
    • 3-dimensional observation on the atomic arrangement and atomic species in a thin-film specimen as well as conventional electron microscope observations is carried out at high speed and accuracy by an electron microscope which measures electrons emitted at high angle from the specimen. For that purpose, the present invention provides a scanning transmission electron microscope having an electron detection device comprising a scintillator converting electrons detected thereby to photons, a photoconductive-film converting photons from the scintillator detected thereby to c.a. 1000 times as many electron-hole pairs as these photons (i.d. avalanche multiplication), an electron gun emitting an electron beam toward the photoconductive-film to detect the holes generated therein, and electron deflector electrodes deflecting the electron beam on the photoconductive-film. Avalanche multiplication in the photoconductive-film amplifies the signal of these photons at so high signal-to-noise ratio that the electron microscope in this invention can detect such weak electrons as emitted at high angle from the specimen at high sensitivity and resolution. Therefore this invention enables a scanning transmission electron microscope to obtain for example 3-dimensional image of point defects and impurity elements existing in joint interfaces and contacts in a ULSI device rapidly and accurately.
    • 通过电子显微镜以高速和准确的方式对薄膜样品中的原子排列和原子种类进行3维观察,以及常规的电子显微镜观察,测量从样品以高角度发射的电子。 为此目的,本发明提供了一种具有电子检测装置的扫描透射电子显微镜,该电子检测装置包括将由此检测的电子转化为光子的闪烁体,从其检测的闪烁体的光电导膜转换光子至c.a. 与这些光子(i.d.雪崩乘法)一样多的电子 - 空穴对的1000倍,向光电导膜发射电子束以检测其中产生的空穴的电子枪以及偏转电子束在光电导膜上的电子偏转器电极。 光电导膜中的雪崩乘法以如此高的信噪比放大了这些光子的信号,使得本发明的电子显微镜能够以高灵敏度和分辨率从样品中以高角度检测出这样的弱电子。 因此,本发明能够使扫描透射电子显微镜能够快速,准确地获得例如存在于ULSI装置的接合界面和触点中的点缺陷和杂质元素的3维图像。
    • 6. 发明授权
    • Sample evaluation/process observation system and method
    • 样本评估/过程观察系统和方法
    • US5783830A
    • 1998-07-21
    • US873788
    • 1997-06-12
    • Hiroshi HiroseHidemi KoikeShigeto IsakozawaYuji SatoMikio IchihashiMotohide Ukiana
    • Hiroshi HiroseHidemi KoikeShigeto IsakozawaYuji SatoMikio IchihashiMotohide Ukiana
    • H01J37/305H01J37/20
    • H01J37/3056H01J37/265H01J2237/20H01J2237/26
    • A sample evaluation/process observation system includes a common sample stage which accommodates a plurality of samples to be processed. The common sample stage is provided with a processing/observing notch and also with a movement mechanism. The movement mechanism functions to sequentially move the plurality of samples to the notch to cause the samples to be exposed to a predetermined processing beam and observing beam. The system further includes a beam processing device in which the common sample stage can be mounted and which functions to irradiate the predetermined processing beam on the plurality of samples through the notch to thereby sequentially perform beam processing operation over the samples. The system further includes a beam observation device in which the common sample stage can be mounted and which functions to irradiate the predetermined observing beam on the plurality of samples through the notch to sequentially observe and evaluate shapes of the plurality of samples. A mark is formed on one sample by a focused ion beam device so that positioning of the mark realizes automatic processing of a part of the sample to be processed. Further, the common sample stage is used in a high-acceleration transmission electron microscope and a high-acceleration scanning electron microscope and focused ion beam device.
    • 样本评估/过程观察系统包括容纳多个待处理样本的公共样本阶段。 公共样品台具有处理/观察凹口,并且还具有移动机构。 移动机构用于将多个样本顺序地移动到凹口,以使样本暴露于预定的处理束和观察波束。 该系统还包括其中可以安装公共样本台的束处理装置,并且其功能是通过凹口对多个采样上的预定处理光束照射,从而顺序地对采样进行光束处理操作。 该系统还包括其中可以安装公共样品台的束观察装置,并且其功能是通过凹口将多个样品上的预定观察光束照射,以依次观察和评估多个样品的形状。 通过聚焦离子束装置在一个样品上形成标记,使得标记的定位实现待处理样品的一部分的自动处理。 此外,普通样品台用于高加速度透射电子显微镜和高加速度扫描电子显微镜和聚焦离子束装置。
    • 9. 发明授权
    • Electron microscope having electrical and mechanical position controls
for specimen and positioning method
    • 电子显微镜具有用于样品和定位方法的电气和机械位置控制
    • US5008536A
    • 1991-04-16
    • US446283
    • 1989-12-05
    • Shigeto IsakozawaTakahito Hashimoto
    • Shigeto IsakozawaTakahito Hashimoto
    • H01J37/20H01J37/147H01J37/26
    • H01J37/265H01J37/147
    • An electron microscope and positioning method comprises a stage, an objective lens, a magnifying lens, a magnification setting the magnifying lens, a stage mover for mechanically moving the stage in two directions defining a two dimensional space so as to move a visual field of the speciment and a electrical shifting device which is disposed on opposite sides of an axis of rotation about which the image is rotated through an angle in the two dimensional directions so as to move the visual field in fine increments. The objective lens rotates the electron beam through the angle. A control panel sets the moving distance and moving direction of the stage mover and the electrical shifting device, and a computer selects the stage mover or the electrical shifting device according to the magnification setting and controls the stage mover or the electrical shifting device according to the moving distance and the moving direction. The stage mover and the electrical shifting device are automatically and selectively controlled by the control panel according to the magnification setting without changing the moving direction of the specimen image displayed in an image observing device.
    • 一种电子显微镜和定位方法,包括:台,物镜,放大镜,放大镜的放大倍数;用于在限定二维空间的两个方向上机械地移动台的移动台,以移动 形状和电动换档装置,其设置在旋转轴的相对侧上,图像在该旋转轴周围以两维方向旋转角度,以便以微小的增量移动视野。 物镜使电子束旋转角度。 控制面板设置载物台移动装置和电动换档装置的移动距离和移动方向,计算机根据放大倍率设定选择载物台移动装置或电动换挡装置,并根据 移动距离和移动方向。 根据放大率设定,通过控制面板自动地和选择性地控制舞台动子和电动换档装置,而不改变在图像观察装置中显示的标本图像的移动方向。