公开(公告)号：US2945151A

公开(公告)日：1960-07-12

申请号：US80861859

申请日：1959-04-24

Applicant: TUNG SOL ELECTRIC INC

Inventor： FIRTH BERNARD G

IPC: H01J1/312

CPC classification number: B82Y10/00 ,  H01J1/312

公开(公告)号：US2909662A

公开(公告)日：1959-10-20

申请号：US52281255

申请日：1955-07-18

Applicant: RESEARCH CORP

Inventor： VON HIPPEL ARTHUR R ,  POWERS DEAN A ,  GREEN WILLIAM B

IPC: G01T1/16 ,  H01J1/312 ,  H03F99/00

CPC classification number: B82Y10/00 ,  G01T1/16 ,  H01J1/312 ,  H03F21/00

公开(公告)号：US12051557B2

公开(公告)日：2024-07-30

申请号：US17609445

申请日：2020-03-23

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Katsuhisa Murakami ,  Masayoshi Nagao

IPC: H01J1/312 ,  H01J1/308

CPC classification number: H01J1/308 ,  H01J1/312 ,  H01J2201/30461

Abstract: An electron emission device having a narrow electron energy range and excellent electron emitting efficiency, and an electron microscope using the electron emission device. An electron emission device having a laminated structure in which a first electrode, an electron accelerating layer made of an insulating film, and a second electrode are laminated in this order, in which the second electrode through which electrons transmit and from whose surface electrons emit, and the energy width of the emitted electrons is 100 meV or more and 600 meV or less. For example, graphene having one or more layers and 20 layers or less can be used as the second electrode, and hexagonal boron nitride can be used as the insulating film.

公开(公告)号：US11887802B2

公开(公告)日：2024-01-30

申请号：US17912659

申请日：2021-03-16

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Katsuhisa Murakami ,  Masayoshi Nagao

IPC: H01J1/312 ,  H01J1/90 ,  C23C16/34 ,  H01J9/02

CPC classification number: H01J1/312 ,  C23C16/342 ,  H01J1/90 ,  H01J9/027 ,  H01J2209/012

Abstract: Provided in the present disclosure is an electron emitting element 10 including a laminated structure in which a first electrode 1, an electron accelerating layer 6 made of an insulation film, a second electrode 3, and a cover film 7 are laminated in that order, in which the second electrode is an electrode which transmits electrons and emits electrons from a surface thereof, and the cover film is a film which transmits electrons, is a protective film made of a material different from that of the second electrode, and constitutes an electron emission surface 5.

公开(公告)号：US20220216026A1

公开(公告)日：2022-07-07

申请号：US17609445

申请日：2020-03-23

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Katsuhisa MURAKAMI ,  Masayoshi NAGAO

IPC: H01J1/308 ,  H01J1/312

Abstract: An electron emission device having a narrow electron energy range and excellent electron emitting efficiency, and an electron microscope using the electron emission device. An electron emission device having a laminated structure in which a first electrode, an electron accelerating layer made of an insulating film, and a second electrode are laminated in this order, in which the second electrode through which electrons transmit and from whose surface electrons emit, and the energy width of the emitted electrons is 100 meV or more and 600 meV or less. For example, graphene having one or more layers and 20 layers or less can be used as the second electrode, and hexagonal boron nitride can be used as the insulating film.

公开(公告)号：US10804061B2

公开(公告)日：2020-10-13

申请号：US16329688

申请日：2017-07-24

Applicant: PEKING UNIVERSITY

Inventor： Xianlong Wei ,  Gongtao Wu

IPC: H01J3/02 ,  H01J9/18 ,  H01J1/312 ,  H01J1/304 ,  H01J1/316 ,  H01J9/02 ,  H01J37/073 ,  H01J35/06

Abstract: A tunneling electro source, an array thereof and methods for making the same are provided. The tunneling electron source is a surface tunneling micro electron source having a planar multi-region structure. The tunneling electron source includes an insulating substrate, and two conductive regions and one insulating region arranged on a surface of the insulating substrate. The insulating region is arranged between the two conductive regions and abuts on the two conductive regions. Minimum spacing between the two conductive regions, which equals to a minimum width of the insulating region, is less than 100 nm.

公开(公告)号：US10720298B2

公开(公告)日：2020-07-21

申请号：US15638237

申请日：2017-06-29

Applicant: THALES

Inventor： Jean-Paul Mazellier ,  Lucie Sabaut

IPC: H01J1/15 ,  H01J35/06 ,  H01J1/312 ,  H01J21/10 ,  H01J23/04

Abstract: A vacuum electron tube comprises at least one electron-emitting cathode and at least one anode arranged in a vacuum chamber, the cathode having a planar structure comprising a substrate comprising a conductive material, a plurality of nanotube or nanowire elements electrically insulated from the substrate, the longitudinal axis of the nanotube or nanowire elements substantially parallel to the plane of the substrate, and at least one first connector electrically linked to at least one nanotube or nanowire element so as to be able to apply a first electrical potential to the nanowire or nanotube element.

公开(公告)号：US09362080B2

公开(公告)日：2016-06-07

申请号：US14599992

申请日：2015-01-19

Applicant: Tsinghua University ,  HON HAI PRECISION INDUSTRY CO., LTD.

Inventor： Peng Liu ,  De-Jie Li ,  Chun-Hai Zhang ,  Duan-Liang Zhou ,  Bing-Chu Du ,  Shou-Shan Fan

IPC: H01L29/06 ,  H01J29/18 ,  H01J1/308 ,  H01J1/312 ,  H01J31/12

CPC classification number: H01J29/18 ,  H01J1/308 ,  H01J1/312 ,  H01J31/127 ,  H01J2201/30461 ,  H01J2201/30469 ,  H01J2201/3125 ,  H01J2329/0449 ,  H01J2329/0455 ,  H01J2329/0478 ,  H01J2329/0484

Abstract: An electron emission device includes a number of second electrodes intersected with a number of first electrodes to define a number of intersections. The first electrode includes a carbon nanotube layer and a semiconductor layer coated on the carbon nanotube layer. An insulating layer is sandwiched between the first electrode and the second electrode at each of the number of intersections, wherein the semiconductor layer is sandwiched between the insulating layer and the carbon nanotube layer.

Abstract translation: 电子发射装置包括与多个第一电极相交的多个第二电极，以限定多个交点。 第一电极包括碳纳米管层和涂覆在碳纳米管层上的半导体层。 在每个交叉点的每一个处，绝缘层夹在第一电极和第二电极之间，其中半导体层夹在绝缘层和碳纳米管层之间。

公开(公告)号：US09307627B2

公开(公告)日：2016-04-05

申请号：US14253902

申请日：2014-04-16

Applicant: Sharp Kabushiki Kaisha

Inventor： Toshihiro Kaneko ,  Tadashi Iwamatsu

IPC: H01J1/88 ,  H01J19/42 ,  F03H1/00 ,  H05H5/02 ,  H01J1/312

CPC classification number: H05H5/02 ,  H01J1/312

Abstract: An electron emitting device includes a lower electrode, a surface electrode, an electron acceleration layer between the lower electrode and the surface electrode, and an electrode selecting unit. The electron acceleration layer is made of at least an insulating material. At least one of the lower electrode and the surface electrode is a stripe-pattern electrode including a plurality of unit electrodes that are regularly arranged. The electrode selecting unit sequentially selects, from among the plurality of unit electrodes, a unit electrode to which a voltage is to be applied. A voltage is applied between the lower electrode and the surface electrode to accelerate electrons between the lower electrode and the surface electrode, so that the electrons are emitted from the surface electrode.

Abstract translation: 电子发射器件包括下电极，表面电极，下电极和表面电极之间的电子加速层，以及电极选择单元。 电子加速层由至少绝缘材料制成。 下电极和表面电极中的至少一个是包括规则排列的多个单位电极的条纹图案电极。 电极选择单元从多个单位电极中依次选择要施加电压的单位电极。 在下电极和表面电极之间施加电压以加速下电极和表面电极之间的电子，使得电子从表面电极发射。

公开(公告)号：US20130249386A1

公开(公告)日：2013-09-26

申请号：US13991653

申请日：2011-11-30

Applicant: Toshihiro Kaneko ,  Tadashi Iwamatsu ,  Ayae Nagaoka

Inventor： Toshihiro Kaneko ,  Tadashi Iwamatsu ,  Ayae Nagaoka

IPC: H01J1/312 ,  H01J9/02 ,  H05B33/22

CPC classification number: H01J1/312 ,  B41J2/39 ,  B41J2/41 ,  G02F2001/133614 ,  G02F2001/133625 ,  G03G15/0291 ,  G21K5/02 ,  H01J9/02 ,  H01J9/025 ,  H01J31/127 ,  H01J63/02 ,  H01J63/06 ,  H05B33/22

Abstract: An electron emission element (1) includes an electrode substrate (2) and a thin film electrode (3), and emits electrons from the thin film electrode (3) by voltage application across the electrode substrate (2) and the thin film electrode (3). An electron accelerating layer (4) containing at least insulating fine particles (5) is provided between the electrode substrate (2) and the thin film electrode (3). The electrode substrate (2) has a convexoconcave surface. The thin film electrode (3) has openings (6) above convex parts of the electrode substrate (2).

Abstract translation: 电子发射元件（1）包括电极基板（2）和薄膜电极（3），并且通过跨过电极基板（2）和薄膜电极（2）施加电压而从薄膜电极（3）发射电子 3）。 在电极基板（2）和薄膜电极（3）之间设置有至少含有绝缘性微粒（5）的电子加速层（4）。 电极基板（2）具有凹凸表面。 薄膜电极（3）在电极基板（2）的凸部上方具有开口（6）。