公开(公告)号：US4288717A

公开(公告)日：1981-09-08

申请号：US91860

申请日：1979-11-06

Applicant: Hiroaki Tanji ,  Mitsuaki Saito ,  Masaji Ishii

Inventor： Hiroaki Tanji ,  Mitsuaki Saito ,  Masaji Ishii

IPC: H01J1/16 ,  H01J19/10

CPC classification number: H01J1/16

Abstract: A thermionic cathode includes an electron emitting tip, lanthanum hexaboride tip supporting heaters in close contact with both sides of the tip and supporting the tip, and elastic electroconductive members in pressure contact with outer surfaces of the tip supporting heaters for supplying electric current. The tip supporting heaters are obtained by cutting lanthanum hexaboride having high anisotropy due to its layered structure so as to form a pair of parallel planes perpendicular to a pressing direction when hot-pressed, and abrade-polishing the parallel planes. The tip supporting heaters are brought into close contact with the tip and the elastic electroconductive members at the resulting smooth surfaces thereof. The apparatus of the invention has a prolonged lifetime and high efficiency.

Abstract translation: 热离子阴极包括电子发射尖端，六硼酸镧尖端，支撑与尖端的两侧紧密接触并支撑尖端的加热器，以及与用于提供电流的尖端支撑加热器的外表面压力接触的弹性导电构件。 尖端支撑加热器是通过切割由于其分层结构而具有高各向异性的六硼化镧而获得的，以便在热压时形成垂直于挤压方向的一对平行平面，并且研磨平行平面。 尖端支撑加热器在其所得到的平滑表面与尖端和弹性导电构件紧密接触。 本发明的装置具有延长的使用寿命和高效率。

公开(公告)号：US4137476A

公开(公告)日：1979-01-30

申请号：US798243

申请日：1977-05-18

Applicant: Masaji Ishii ,  Shuzo Watanabe ,  Akira Miyai ,  Hideo Hiraoka

Inventor： Masaji Ishii ,  Shuzo Watanabe ,  Akira Miyai ,  Hideo Hiraoka

IPC: H01J1/13 ,  H01J1/16 ,  H01J19/10

CPC classification number: H01J1/13

Abstract: A thermionic cathode for an electron beam device is provided which comprises a first layer of thermoelectron emissive compound sharpened towards a point, a third layer of metal of high melting point and a second layer of reaction barrier interposed between the first and third layers, current terminals being attached to said third layer. According to the invention, a thermionic cathode capable of emitting stable electron beams of high intensity for a long period of time can be manufactured.

Abstract translation: 提供了一种用于电子束装置的热离子阴极，其包括朝向点锐化的第一层热电子发射化合物，高熔点金属第三层和介于第一和第三层之间的第二反应栅层，电流端子 附着于所述第三层。 根据本发明，可以制造能够长时间发射高强度电子束的热离子阴极。

公开(公告)号：US4115720A

公开(公告)日：1978-09-19

申请号：US783220

申请日：1977-03-31

Applicant: Jules David Levine

Inventor： Jules David Levine

IPC: H01J1/20 ,  H01J19/14 ,  H01J21/04 ,  H01J19/10

CPC classification number: H01J21/04 ,  H01J1/20 ,  H01J19/14

Abstract: Electronic device comprising an evacuated envelope containing a main thermionic cathode heated solely by energetic electrons emitted from an unheated auxiliary field-emission cathode.

Abstract translation: 电子设备包括一个真空外壳，其中包含仅由未加热的辅助场致发射阴极发射的能量电子加热的主热离子阴极。

公开(公告)号：US3746905A

公开(公告)日：1973-07-17

申请号：US3746905D

申请日：1971-12-21

Applicant: US ARMY

Inventor： SHELTON J ,  HAGOOD J ,  NORMAN R

IPC: H01J1/304 ,  H01J21/36 ,  H01J1/16 ,  H01J19/10

CPC classification number: H01J1/304 ,  H01J21/36

Abstract: An improved electron tube is provided which eliminates the need for a heated electron source and affords simplified construction. The tube, a high vacuum tube, is capable of operating over an extended range of electrical potentials. The electron tube operates on the principle of electric field effect emission for the electron source, requiring neither gas, vapor nor a heated electrode in its envelope. Two active elements, an emitter and a collector, are enclosed in an evacuated chamber with outside connections to each element. The collector is a metal plate and the emitter is an oxide-metal composite which contains a very large number of metal filaments embedded in an insulating oxide matrix. The number of filaments normally exceed one million per square centimeter of exposed surface, having ends connected on the back side to a conducting plate for external connection.

Abstract translation: 提供了一种改进的电子管，其不需要加热的电子源并且提供简化的结构。 管，一个高真空管，能够在一个延长的电位范围内运行。 电子管的工作原理是电子源的电场效应发射，既不需要气体，蒸气也不需要在其外壳中加热电极。 两个有源元件，一个发射极和一个收集器，被封闭在一个抽真空室中，每个元件都有外部连接。 收集器是金属板，发射极是一种氧化物 - 金属复合材料，它含有非常多的嵌入绝缘氧化物基质中的金属细丝。 长丝的数量通常超过每平方厘米暴露表面的百万分之一，其端部在背面连接到用于外部连接的导电板。

公开(公告)号：US3447017A

公开(公告)日：1969-05-27

申请号：US3447017D

申请日：1966-12-08

Applicant: SYLVANIA ELECTRIC PROD

Inventor： KERSTETTER DONALD RUSSEL

IPC: H01J1/20 ,  H01J19/10 ,  H01J19/14

CPC classification number: H01J1/20

公开(公告)号：US3436584A

公开(公告)日：1969-04-01

申请号：US3436584D

申请日：1966-03-15

Applicant: GEN ELECTRIC

Inventor： HUGHES WILLIAM C ,  PEROUTKY DONALD C

IPC: H01J37/065 ,  H01J19/06 ,  H01J19/10

CPC classification number: H01J37/065

公开(公告)号：US6091202A

公开(公告)日：2000-07-18

申请号：US743219

申请日：1996-11-05

Applicant: Naoaki Aizaki

Inventor： Naoaki Aizaki

IPC: G03F7/20 ,  H01J37/073 ,  H01J37/305 ,  H01J37/317 ,  H01L21/027 ,  H01J1/16 ,  H01J19/10

CPC classification number: B82Y10/00 ,  B82Y40/00 ,  H01J37/073 ,  H01J37/3177 ,  H01J2237/04735 ,  H01J2237/0635

Abstract: An electron beam exposure apparatus, comprising an electron emitting apparatus including an extracting electrode and a plurality of electron emitting elements having end portions exposed individually in a plurality of openings formed in rows and columns on a principal face of the extracting electrode, a control power supply for applying a voltage between the extracting electrode and selected ones of the electron emitting elements to emit electrons from the selected electron emitting elements, an acceleration electrode in the form of a flat plate having a number of very small openings equal to the number of and corresponding to the electron emitting elements, and a converging electrode in the form of a flat plate having a number of very small openings equal to the number of and corresponding to the electron emitting elements.

Abstract translation: 一种电子束曝光装置，包括电子发射装置，其包括提取电极和多个电子发射元件，所述多个电子发射元件具有单独暴露在所述提取电极的主面上以行和列形成的多个开口中的端部，控制电源 用于在所述提取电极和所选择的所述电子发射元件之间施加电压以从所选择的电子发射元件发射电子的平板的形式的加速电极具有等于其数量和对应的数量的非常小的开口 电子发射元件，以及平板形式的会聚电极，其具有与电子发射元件的数量相等并且对应于电子发射元件的许多非常小的开口。

公开(公告)号：US6075315A

公开(公告)日：2000-06-13

申请号：US618378

申请日：1996-03-19

Applicant: Nobuya Seko ,  Hironori Imura ,  Masayuki Yoshiki ,  Kunihiro Shiota

Inventor： Nobuya Seko ,  Hironori Imura ,  Masayuki Yoshiki ,  Kunihiro Shiota

IPC: H01J1/304 ,  H01J3/02 ,  H01J9/02 ,  H01J1/02 ,  H01J1/16 ,  H01J19/10 ,  H01J63/04

CPC classification number: H01J3/022 ,  H01J9/025

Abstract: Piled-up films composed of different materials or composed of the same material manufactured by different methods or different conditions are used as an insulating layer for a field-emission cold cathode. The insulating layer may have a composition which is varied continuously in the thickness direction. A cross-section of the insulating layer may be made uneven. Preferably, a triple junction in which a substrate, the insulating layer, and a vacuum are in contact with one another, is disposed at a position which can not be seen from outside the device.

Abstract translation: 作为场致发射冷阴极的绝缘层，使用由不同材料构成或由不同方法或不同条件制造的相同材料构成的堆积薄膜。 绝缘层可以具有在厚度方向上连续变化的组成。 可以使绝缘层的横截面不均匀。 优选地，其中衬底，绝缘层和真空彼此接触的三重结构被布置在从器件外部看不到的位置。

公开(公告)号：US5986389A

公开(公告)日：1999-11-16

申请号：US594294

申请日：1996-01-30

Applicant: Takeo Tsukamoto

Inventor： Takeo Tsukamoto

IPC: H01J9/02 ,  H01J1/316 ,  H01J29/04 ,  H01J31/12 ,  H01J1/30 ,  H01J19/10 ,  H01J19/24

CPC classification number: H01J1/316

Abstract: An electron-emitting device comprises a pair of electrodes and an electroconductive thin film therebetween having an electron-emitting region. The electroconductive thin film is coated with an additional film at the electron-emitting region to provide an additional resistance within a range from 500 .OMEGA. to 100 k.OMEGA..

Abstract translation: 电子发射器件包括一对电极和其间具有电子发射区的导电薄膜。 导电薄膜在电子发射区域涂覆附加的膜，以提供在500欧姆到100千欧姆欧姆范围内的附加电阻。

公开(公告)号：US5747926A

公开(公告)日：1998-05-05

申请号：US612577

申请日：1996-03-08

Applicant: Masayuki Nakamoto ,  Hiromichi Ohashi

Inventor： Masayuki Nakamoto ,  Hiromichi Ohashi

IPC: H01J1/30 ,  H01J1/62 ,  H01J1/02 ,  H01J1/16 ,  H01J19/10

CPC classification number: H01J1/30 ,  H01J2201/304 ,  H01J2201/306

Abstract: A ferroelectric cold cathode comprising a ferroelectric layer formed of a ferroelectric material and provided on its one surface with an emitter which is a projection having a sharp tip portion, a first electrode layer formed on one surface of the ferroelectric layer and having an opening allowing the sharp tip portion of the emitter to be exposed therethrough, and a second electrode layer formed on the other surface of the ferroelectric layer. When a voltage is applied between the first electrode and the second electrode, a dielectric polarization is reversed in the ferroelectric layer, resulting in the emission of electrons from the sharp tip portion of the emitter.

Abstract translation: 1.一种铁电体冷阴极，其特征在于，具有由铁电体材料形成的强电介质层，在其一个表面上设置有具有尖锐部分的突起的发射极，形成在所述强电介质层的一个表面上的第一电极层， 要暴露于其中的发射极尖尖部分，以及形成在铁电层的另一个表面上的第二电极层。 当在第一电极和第二电极之间施加电压时，介电极化在铁电层中反转，导致从发射极尖锐部分发射电子。