公开(公告)号：US08368016B1

公开(公告)日：2013-02-05

申请号：US12007511

申请日：2008-01-11

Applicant: Mamoru Nakasuji ,  Takao Kato ,  Nobuharu Noji ,  Tohru Satake ,  Takeshi Murakami ,  Kenji Watanabe

Inventor： Mamoru Nakasuji ,  Takao Kato ,  Nobuharu Noji ,  Tohru Satake ,  Takeshi Murakami ,  Kenji Watanabe

IPC: H01J37/26

CPC classification number: H01J3/10 ,  B82Y10/00 ,  B82Y40/00 ,  G01N23/225 ,  H01J3/021 ,  H01J37/063 ,  H01J37/073 ,  H01J37/1471 ,  H01J37/1472 ,  H01J37/3174 ,  H01J2237/06316 ,  H01J2237/2817

Abstract: An electron beam apparatus, in which an electron beam emitted from an electron gun having a cathode and an anode is focused and irradiated onto a sample, and secondary electrons emanated from the sample are directed into a detector, the apparatus further comprising means for optimizing irradiation of the electron beam emitted from the electron gun onto the sample, the optimizing means may be two-stage deflectors disposed in proximity to the electron gun which deflects and directs the electron beam emitted in a specific direction so as to be in alignment with the optical axis direction of the electron beam apparatus, the electron beam emitted in the specific direction being at a certain angle with respect to the optical axis due to the fact that, among the crystal orientations of said cathode, a specific crystal orientation allowing a higher level of electron beam emission out of alignment with the optical axis direction.

Abstract translation: 电子束装置，其中从具有阴极和阳极的电子枪发射的电子束被聚焦并照射到样品上，并且从样品发出的二次电子被引导到检测器中，该装置还包括用于优化照射的装置 从电子枪发射到样品上的电子束的优化装置可以是设置在电子枪附近的两级偏转器，其偏转并引导沿特定方向发射的电子束以与光学器件对准 电子束装置的轴方向，由于在所述阴极的晶体取向中具有更高水平的特定晶体取向的事实，在特定方向上发射的电子束相对于光轴成一定角度 电子束发射与光轴方向不对准。

公开(公告)号：US20040119023A1

公开(公告)日：2004-06-24

申请号：US10731163

申请日：2003-12-10

Applicant: EBARA CORPORATION

Inventor： Mamoru Nakasuji ,  Takao Kato ,  Nobuharu Noji ,  Tohru Satake ,  Takeshi Murakami ,  Kenji Watanabe

IPC: H01J003/14

CPC classification number: H01J3/10 ,  B82Y10/00 ,  B82Y40/00 ,  G01N23/225 ,  H01J3/021 ,  H01J37/063 ,  H01J37/073 ,  H01J37/1471 ,  H01J37/1472 ,  H01J37/3174 ,  H01J2237/06316 ,  H01J2237/2817

Abstract: An electron beam apparatus, in which an electron beam emitted from an electron gun having a cathode and an anode is focused and irradiated onto a sample, and secondary electrons emanated from the sample are directed into a detector, the apparatus further comprising means for optimizing irradiation of the electron beam emitted from the electron gun onto the sample, the optimizing means may be two-stage deflectors disposed in proximity to the electron gun which deflects and directs the electron beam emitted in a specific direction so as to be in alignment with the optical axis direction of the electron beam apparatus, the electron beam emitted in the specific direction being at a certain angle with respect to the optical axis due to the fact that, among the crystal orientations of said cathode, a specific crystal orientation allowing a higher level of electron beam emission out of alignment with the optical axis direction.

Abstract translation: 电子束装置，其中从具有阴极和阳极的电子枪发射的电子束被聚焦并照射到样品上，并且从样品发出的二次电子被引导到检测器中，该装置还包括用于优化照射的装置 从电子枪发射到样品上的电子束的优化装置可以是设置在电子枪附近的两级偏转器，其偏转并引导沿特定方向发射的电子束以与光学器件对准 电子束装置的轴方向，由于在所述阴极的晶体取向中具有更高水平的特定晶体取向的事实，在特定方向上发射的电子束相对于光轴成一定角度 电子束发射与光轴方向不对准。

公开(公告)号：US3694687A

公开(公告)日：1972-09-26

申请号：US3694687D

申请日：1970-08-12

Applicant: COLUMBIA BROADCASTING SYST INC

Inventor： GLENN WILLIAM ELLIS

IPC: H01J3/10 ,  H01J37/063 ,  H01J37/065 ,  H01J29/74 ,  H01J29/02 ,  H01J29/82

CPC classification number: H01J37/063 ,  H01J3/10 ,  H01J37/065

Abstract: In an electron gun, an anode structure in which the electron beam aperture is defined by four mutually insulated anode segments which may be energized to provide beam centering. In a preferred embodiment, the anode segments are shaped to intercept the beam if it is off-center, and are returned to ground potential through respective resistors thereby being operative automatically to center the beam.

Abstract translation: 在电子枪中，阳极结构中电子束孔由四个相互绝缘的阳极段限定，阳极段可被激励以提供光束对中。 在一个优选实施例中，如果阳极段偏心，则阳极段被成形为截取光束，并且通过相应的电阻器返回到接地电位，从而自动地使光束中心。

公开(公告)号：US3245794A

公开(公告)日：1966-04-12

申请号：US23378062

申请日：1962-10-29

Applicant: IHILCO CORP

Inventor： CONLEY JAMES W

IPC: C23F1/02 ,  G03B27/53 ,  H01J3/10

CPC classification number: G03B27/53 ,  C23F1/02 ,  H01J3/10 ,  Y10S438/948

公开(公告)号：US20130032716A1

公开(公告)日：2013-02-07

申请号：US12007511

申请日：2008-01-11

Applicant: Mamoru Nakasuji ,  Takao Kato ,  Nobuharu Noji ,  Tohru Satake ,  Takeshi Murakami ,  Kenji Watanabe

Inventor： Mamoru Nakasuji ,  Takao Kato ,  Nobuharu Noji ,  Tohru Satake ,  Takeshi Murakami ,  Kenji Watanabe

IPC: H01J37/07

CPC classification number: H01J3/10 ,  B82Y10/00 ,  B82Y40/00 ,  G01N23/225 ,  H01J3/021 ,  H01J37/063 ,  H01J37/073 ,  H01J37/1471 ,  H01J37/1472 ,  H01J37/3174 ,  H01J2237/06316 ,  H01J2237/2817

Abstract: An electron beam apparatus, in which an electron beam emitted from an electron gun having a cathode and an anode is focused and irradiated onto a sample, and secondary electrons emanated from the sample are directed into a detector, the apparatus further comprising means for optimizing irradiation of the electron beam emitted from the electron gun onto the sample, the optimizing means may be two-stage deflectors disposed in proximity to the electron gun which deflects and directs the electron beam emitted in a specific direction so as to be in alignment with the optical axis direction of the electron beam apparatus, the electron beam emitted in the specific direction being at a certain angle with respect to the optical axis due to the fact that, among the crystal orientations of said cathode, a specific crystal orientation allowing a higher level of electron beam emission out of alignment with the optical axis direction.

Abstract translation: 电子束装置，其中从具有阴极和阳极的电子枪发射的电子束被聚焦并照射到样品上，并且从样品发出的二次电子被引导到检测器中，该装置还包括用于优化照射的装置 从电子枪发射到样品上的电子束的优化装置可以是设置在电子枪附近的两级偏转器，其偏转并引导沿特定方向发射的电子束以与光学器件对准 电子束装置的轴方向，由于在所述阴极的晶体取向中具有更高水平的特定晶体取向的事实，在特定方向上发射的电子束相对于光轴成一定角度 电子束发射与光轴方向不对准。

公开(公告)号：US07750295B2

公开(公告)日：2010-07-06

申请号：US10538284

申请日：2003-12-30

Applicant: Ho Soeb Kim ,  Seung Joon Ahn ,  Dae Wook Kim

Inventor： Ho Soeb Kim ,  Seung Joon Ahn ,  Dae Wook Kim

IPC: H01J37/352

CPC classification number: H01J3/028 ,  H01J3/10 ,  H01J37/067 ,  H01J37/15 ,  H01J2237/1205 ,  H01J2237/1501 ,  H01J2237/1502 ,  H01J2237/24465 ,  H01J2237/24507

Abstract: The present invention provides a new extractor for a micro-column and an alignment method of the aperture of the extractor and an electron emitter for a micro-column. Further, the present invention provides a measuring system, a method for measuring, and an alignment method using the principle of the alignment.

Abstract translation: 本发明提供了用于微柱的新提取器和提取器的孔径和用于微柱的电子发射器的对准方法。 此外，本发明提供了使用对准原理的测量系统，测量方法和对准方法。

公开(公告)号：US20060097200A1

公开(公告)日：2006-05-11

申请号：US11304680

申请日：2005-12-16

Applicant: Mamoru Nakasuji ,  Takao Kato ,  Nobuharu Noji ,  Tohru Satake ,  Takeshi Murakami ,  Kenji Watanabe

Inventor： Mamoru Nakasuji ,  Takao Kato ,  Nobuharu Noji ,  Tohru Satake ,  Takeshi Murakami ,  Kenji Watanabe

IPC: G21G4/00

CPC classification number: H01J3/10 ,  B82Y10/00 ,  B82Y40/00 ,  G01N23/225 ,  H01J3/021 ,  H01J37/063 ,  H01J37/073 ,  H01J37/1471 ,  H01J37/1472 ,  H01J37/3174 ,  H01J2237/06316 ,  H01J2237/2817

Abstract: An electron beam apparatus, in which an electron beam emitted from an electron gun having a cathode and an anode is focused and irradiated onto a sample, and secondary electrons emanated from the sample are directed into a detector, the apparatus further comprising means for optimizing irradiation of the electron beam emitted from the electron gun onto the sample, the optimizing means may be two-stage deflectors disposed in proximity to the electron gun which deflects and directs the electron beam emitted in a specific direction so as to be in alignment with the optical axis direction of the electron beam apparatus, the electron beam emitted in the specific direction being at a certain angle with respect to the optical axis due to the fact that, among the crystal orientations of said cathode, a specific crystal orientation allowing a higher level of electron beam emission out of alignment with the optical axis direction.

公开(公告)号：US20060071175A1

公开(公告)日：2006-04-06

申请号：US10538284

申请日：2003-12-30

Applicant: Ho Kim ,  Seung Ahn ,  Dae Kim

Inventor： Ho Kim ,  Seung Ahn ,  Dae Kim

IPC: H01J3/14

CPC classification number: H01J3/028 ,  H01J3/10 ,  H01J37/067 ,  H01J37/15 ,  H01J2237/1205 ,  H01J2237/1501 ,  H01J2237/1502 ,  H01J2237/24465 ,  H01J2237/24507

Abstract: The present invention provides a new extractor for a micro-column and an alignment method of the aperture of the extractor and an electron emitter for a micro-column. Further, the present invention provides a measuring system, a method for measuring, and an alignment method using the principle of the alignment.

Abstract translation: 本发明提供了用于微柱的新提取器和提取器的孔径和用于微柱的电子发射器的对准方法。 此外，本发明提供了使用对准原理的测量系统，测量方法和对准方法。

公开(公告)号：US12080507B2

公开(公告)日：2024-09-03

申请号：US17763186

申请日：2020-09-04

Applicant: Photo electron Soul Inc.

Inventor： Hokuto Iijima

IPC: H01J3/02 ,  H01J1/34 ,  H01J1/52 ,  H01J3/10 ,  H01J37/073

CPC classification number: H01J3/021 ,  H01J1/34 ,  H01J1/52 ,  H01J3/10 ,  H01J37/073 ,  H01J2237/06333

Abstract: An object is to provide an electron gun that makes it possible to verify whether or not an electron beam emitted form a photocathode is misaligned from a designed emission center axis. The object can be achieved by an electron gun including: a light source; a photocathode; and an anode. The electron gun includes an intermediate electrode arranged between the photocathode and the anode, an electron beam shielding member configured to block a part of an electron beam, a measurement unit configured to measure an intensity of an electron beam blocked by the electron beam shielding member, and an electron beam emission direction deflector arranged between the anode and the electron beam shielding member and configured to change a position where an electron beam that passed through the anode reaches the electron beam shielding member. The intermediate electrode has an electron beam passage hole and a drift space.

公开(公告)号：US07361895B2

公开(公告)日：2008-04-22

申请号：US11304680

申请日：2005-12-16

Applicant: Mamoru Nakasuji ,  Takao Kato ,  Nobuharu Noji ,  Tohru Satake ,  Takeshi Murakami ,  Kenji Watanabe

Inventor： Mamoru Nakasuji ,  Takao Kato ,  Nobuharu Noji ,  Tohru Satake ,  Takeshi Murakami ,  Kenji Watanabe

IPC: H01J49/44

CPC classification number: H01J3/10 ,  B82Y10/00 ,  B82Y40/00 ,  G01N23/225 ,  H01J3/021 ,  H01J37/063 ,  H01J37/073 ,  H01J37/1471 ,  H01J37/1472 ,  H01J37/3174 ,  H01J2237/06316 ,  H01J2237/2817

Abstract: An electron beam apparatus, in which an electron beam emitted from an electron gun having a cathode and an anode is focused and irradiated onto a sample, and secondary electrons emanated from the sample are directed into a detector, the apparatus further comprising means for optimizing irradiation of the electron beam emitted from the electron gun onto the sample, the optimizing means may be two-stage deflectors disposed in proximity to the electron gun which deflects and directs the electron beam emitted in a specific direction so as to be in alignment with the optical axis direction of the electron beam apparatus, the electron beam emitted in the specific direction being at a certain angle with respect to the optical axis due to the fact that, among the crystal orientations of said cathode, a specific crystal orientation allowing a higher level of electron beam emission out of alignment with the optical axis direction.

Abstract translation: 电子束装置，其中从具有阴极和阳极的电子枪发射的电子束被聚焦并照射到样品上，并且从样品发出的二次电子被引导到检测器中，该装置还包括用于优化照射的装置 从电子枪发射到样品上的电子束的优化装置可以是设置在电子枪附近的两级偏转器，其偏转并引导沿特定方向发射的电子束以与光学器件对准 电子束装置的轴方向，由于在所述阴极的晶体取向中具有更高水平的特定晶体取向的事实，在特定方向上发射的电子束相对于光轴成一定角度 电子束发射与光轴方向不对准。