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    • 3. 发明专利
    • Scanning transmission electron microscope and electron beam energy spectroscopy using it
    • 扫描传输电子显微镜和电子束能量光谱使用它
    • JP2006012583A
    • 2006-01-12
    • JP2004187570
    • 2004-06-25
    • Hitachi High-Technologies Corp株式会社日立ハイテクノロジーズ
    • NAKAMURA KUNIYASUWATANABE SHUNICHI
    • H01J37/28G01N23/00
    • H01J37/04H01J37/05H01J37/265H01J37/28H01J2237/04922H01J2237/057H01J2237/2802
    • PROBLEM TO BE SOLVED: To provide a scanning transmission electron microscope capable of independently setting capturing angle ranges of a scattered electron beam detector and an energy spectrometer, and not requiring to change a condition of the energy spectrometer for the change of the capturing angle range of the scattered electron beam detector. SOLUTION: In the scanning transmission electron microscope provided with the energy spectrometer 18, a first rotational-symmetry lens 6 setting a scattered electron beam capturing angle is disposed in an upper part of the scattered electron beam detector detecting an electron beam scattered by a sample 32, a second rotational symmetry lens 13 is disposed between the scattered electron beam detector and the energy spectrometer 18, the scattered electron beam capturing angle is set with the first rotational symmetry lens 6, and an object point of the energy spectrometer 18 is set with the second rotational symmetry lens 13. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供能够独立地设置散射电子束检测器和能量光谱仪的捕获角度范围的扫描透射电子显微镜,并且不需要改变能量光谱仪的状态以改变捕获 散射电子束检测器的角度范围。 解决方案:在具有能量光谱仪18的扫描透射电子显微镜中,设置散射电子束捕获角的第一旋转对称透镜6设置在散射电子束检测器的上部,该散射电子束检测器检测由 样品32,第二旋转对称透镜13设置在散射电子束检测器和能量光谱仪18之间,散射电子束捕获角度由第一旋转对称透镜6设定,能量谱仪18的物镜 设置有第二旋转对称透镜13.版权所有(C)2006,JPO&NCIPI
    • 4. 发明专利
    • Electron gun and charged particle beam device
    • 电子枪和充电颗粒光束装置
    • JP2013045525A
    • 2013-03-04
    • JP2011180851
    • 2011-08-22
    • Hitachi High-Technologies Corp株式会社日立ハイテクノロジーズ
    • WATANABE SHUNICHIONISHI TAKASHIOSE YOICHINAKAMURA KUNIYASUMORIYAMA MASARUSUZUKI TOMONORI
    • H01J37/073H01J37/09
    • H01J37/065H01J2237/0206H01J2237/0213H01J2237/026H01J2237/045H01J2237/06316
    • PROBLEM TO BE SOLVED: To suppress generation of a flare by decreasing the amount of secondary electrons generated at a diaphragm provided to a lead-out electrode of an electron gun.SOLUTION: When a diaphragm 7A of a lead-out electrode 5 closest to an electron source 1 in the electron gun is coated with a thin film of carbon etc., having a small secondary electron emission rate, the generation amount of secondary electrons can be reduced. The secondary electrons generated at the lead-out electrode which cause generation of a flare decrease, so the flare eventually decreases. Further, two diaphragms 7A, 7B are built in the lead-out electrode 5 and applied with a potential equal to that of the lead-out electrode so as to eliminate an electric field leaking from a lower part to an upper part of the lead-out electrode. Consequently, a secondary electron generated when an electron beam strikes on the lead-out electrode does not receive force passing from the lead-out electrode, so that the flare is reduced.
    • 要解决的问题:通过减少在设置在电子枪的引出电极上的隔膜处产生的二次电子的量来抑制耀斑的产生。 解决方案:当电子枪中最靠近电子源1的引出电极5的膜片7A涂覆有二等电子发射速率小的碳等薄膜时,二次发生量的产生量 可以减少电子。 在引出电极处产生的二次电子产生耀斑减少,所以耀斑最终减小。 此外,在引出电极5中内置两个膜7A,7B,并施加与引出电极相同的电位,以消除从引出电极5的下部到上部的电场泄漏。 出电极。 因此,当电子束撞击引出电极时产生的二次电子不会受到从引出电极通过的力,从而减少了耀斑。 版权所有(C)2013,JPO&INPIT
    • 7. 发明专利
    • Electron gun
    • 电子枪
    • JP2013225521A
    • 2013-10-31
    • JP2013126253
    • 2013-06-17
    • Hitachi High-Technologies Corp株式会社日立ハイテクノロジーズ
    • ICHIHASHI MIKIOONISHI TAKASHIWATANABE SHUNICHITAMURA KEIJI
    • H01J37/073H01J37/141
    • PROBLEM TO BE SOLVED: To provide a cold cathode-type electron gun with low aberration that has high brightness even in a large current.SOLUTION: A field emission-type electron gun of the present invention draws electron beams out of a cathode and converges the drawn electron beams, and includes a magnetic field lens so that the cathode is arranged in a lens magnetic field. An extraction electrode for drawing electrons out of the cathode is configured in a cylindrical shape having no diaphragm structure. According to the present invention, the electron gun having a function to converge electron beams by using a magnetic field, reducing an electrostatic lens action occurring in association with the convergence, and having less aberration and high brightness, can be provided.
    • 要解决的问题:提供即使在大电流下也具有高亮度的低像差的冷阴极型电子枪。解决方案:本发明的场发射型电子枪将电子束从阴极中拉出并使 并且包括磁场透镜,使得阴极被布置在透镜磁场中。 用于从阴极抽出电子的提取电极被构造成没有膜结构的圆柱形形状。 根据本发明,可以提供具有通过使用磁场会聚电子束的功能的电子枪,减少与会聚相关发生的静电透镜动作,并且具有较小的像差和高亮度。
    • 8. 发明专利
    • Electron emission element, and electron gun and electron beam application device using it
    • 电子发射元件,电子枪和电子束应用装置
    • JP2008251303A
    • 2008-10-16
    • JP2007090135
    • 2007-03-30
    • Hitachi High-Technologies Corp株式会社日立ハイテクノロジーズ
    • OKAI MAKOTOFUJIEDA TADASHIHIDAKA KISHIOHAYASHIBARA MITSUOWATANABE SHUNICHI
    • H01J1/304C01B31/02H01J37/073H01J37/305H01L21/027
    • H01J37/073H01J37/28
    • PROBLEM TO BE SOLVED: To provide an electron emission element small in energy width, and a high-luminance and high-resolution electron microscope and an electron beam drawing device using the electron emission element. SOLUTION: This invention is characterized in that an electron beam emission element is formed by using carbon nanotubes which have closed structure regions at tips and in which distances between five-membered rings present in the closed structure regions are not shorter than 30 nm. The invention is characterized in that the electron beam emission element is formed by using the carbon nanotubes which have closed structure regions at tips and in which apex angles using the five-membered rings present in the closed structure regions as apexes are not smaller than 70°. The invention is characterized by constituting the electron gun, the electron microscope and the electron beam drawing device by using each electron beam emission element. By the invention, the high-luminance and high-resolution electron microscope and the electron beam drawing device can be obtained. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供能量宽度小的电子发射元件,以及使用该电子发射元件的高亮度和高分辨率电子显微镜和电子束引出装置。 解决方案:本发明的特征在于,通过使用在顶端具有闭合结构区域的碳纳米管形成电子束发射元件,并且在闭合结构区域中存在的五元环之间的距离不小于30nm 。 本发明的特征在于,电子束发射元件是通过使用在顶端具有闭合结构区域的碳纳米管形成的,并且使用存在于封闭结构区域中的五元环作为顶点的顶角不小于70° 。 本发明的特征在于通过使用每个电子束发射元件构成电子枪,电子显微镜和电子束引出装置。 通过本发明,可以获得高亮度和高分辨率的电子显微镜和电子束描绘装置。 版权所有(C)2009,JPO&INPIT