公开(公告)号：US5148079A

公开(公告)日：1992-09-15

申请号：US662574

申请日：1991-03-01

Applicant: Hiroyuki Kado ,  Masanori Watanabe

Inventor： Hiroyuki Kado ,  Masanori Watanabe

IPC: H01J9/02 ,  H01J1/30 ,  H01J1/304 ,  H01J3/02 ,  H01J21/10

CPC classification number: H01J3/022 ,  H01J1/3042 ,  H01J21/105

Abstract: A planar type cold cathode for generating electron field emission which has a planar cold cathode having triangular convex portions and an anode confronting the triangular convex portions wherein each convex portion has a sharp tip end having a radius of curvature of 0.1 .mu.m or less. Also, a manufacturing method therefor is disclosed. In this method, sharp tip ends of the cold cathode are formed by using a normal etching technique.

公开(公告)号：US5079476A

公开(公告)日：1992-01-07

申请号：US477686

申请日：1990-02-09

Applicant: Robert C. Kane

Inventor： Robert C. Kane

IPC: H01J21/06 ,  H01J1/30 ,  H01J1/304 ,  H01J3/02 ,  H01J9/02 ,  H01J19/24 ,  H01J21/10

CPC classification number: H01J3/022 ,  H01J21/105 ,  H01J9/025

Abstract: A solid state field emission device having a cathode that is peripherally disposed about the anode and axially displaced with respect thereto. The device itself is encapsulated, readily manufacturable, and has comparable operating properties, vis-a-vis one another when manufactured in quantity.

Abstract translation: 一种固态场致发射器件，具有围绕阳极周边设置并相对于其轴向移位的阴极。 该装置本身被封装，容易制造，并且在数量上制造时具有相当的操作性能。

公开(公告)号：US5030921A

公开(公告)日：1991-07-09

申请号：US478288

申请日：1990-02-09

Applicant: Robert C. Kane

Inventor： Robert C. Kane

IPC: H01J1/30 ,  H01J1/304 ,  H01J3/02

CPC classification number: H01J3/022

Abstract: Field emission devices are cascaded in multiple stages, such that certain structures function as electrodes for field emission devices of differing stages.

Abstract translation: 场致发射器件多级级联，使得某些结构用作不同级的场致发射器件的电极。

公开(公告)号：US5012153A

公开(公告)日：1991-04-30

申请号：US455217

申请日：1989-12-22

Applicant: Gary M. Atkinson ,  M. DuChesne Courtney

Inventor： Gary M. Atkinson ,  M. DuChesne Courtney

IPC: H01J3/02 ,  H01J21/10 ,  H03K17/54

CPC classification number: H01J21/105 ,  H01J3/022 ,  H03K17/545

Abstract: A vacuum FET is designed to perform higher level functions such as logic AND, EXCLUSIVE OR (NOR), demultiplexing, or frequency multiplication with a single device. These higher level functions are accomplished by dividing the collector of the vacuum FET into multiple segments and by providing steering electrodes just above the emitter to deflect the field emission current to the various collector segments. The collector pattern, together with the configuration of the applied signals to the device, determines the higher order function performed.

Abstract translation: 设计真空FET以执行较高级别的功能，例如逻辑与，独占（或），解复用或单个器件的倍频。 这些较高级别的功能是通过将真空FET的集电极分成多个部分并且通过在发射极之上提供转向电极来将场致发射电流偏转到各种收集器段来实现的。 收集器图案以及所施加的信号到器件的配置，确定执行的高阶函数。

公开(公告)号：US4955045A

公开(公告)日：1990-09-04

申请号：US335700

申请日：1989-04-10

Applicant: Dirk Friede ,  Hans-Juergen Cirkel ,  Rudolf Baumgartl ,  Matthias Schmutzler

Inventor： Dirk Friede ,  Hans-Juergen Cirkel ,  Rudolf Baumgartl ,  Matthias Schmutzler

IPC: H01J35/22 ,  H01J3/02 ,  H01J17/40 ,  H01J33/00 ,  H01J37/075 ,  H01J37/077 ,  H01S3/09 ,  H01S3/0971 ,  H05G2/00

CPC classification number: H01S3/09716 ,  H01J17/40 ,  H01J3/025 ,  H01J33/00 ,  H01J35/06 ,  H01J35/08 ,  H01J2235/186

Abstract: A plasma X-ray tube with high electron current densities includes a plasma chamber formed of a metal hollow cathode having an outer limiting wall with an X-ray target and a mutually spaced apart and opposed inner limiting wall with at least one metal acceleration grid being highly transparent to electron and ion radiation and being in alignment with the X-ray target defining a path. At least one ignition electrode in the form of a thin wire protrudes into the plasma chamber at positive potential relative to the hollow cathode. At least one anode retained in an insulated and gas-tight manner in one of the side walls of the hollow cathode is disposed laterally of the alignment of the target and grid and at positive potential relative to the hollow cathode. An acceleration chamber adjoins and communicates with the plasma chamber through the acceleration grid. The acceleration chamber is surrounded by metal walls in electrical and gas-tight connection with the limiting walls of the hollow cathode. An acceleration cathode is at high negative potential relative to the acceleration grid. The acceleration cathode has a shaft and a head in alignment with the path and spaced apart from the acceleration grid. The shaft of the acceleration cathode is retained in an insulating gas-tight duct in a wall facing the acceleration grid.

Abstract translation: 具有高电子密度的等离子体X射线管包括由金属空心阴极形成的等离子体室，该等离子体室具有带有X射线靶的外部限制壁和相互间隔开的相对的内部限制壁，至少一个金属加速栅是 对电子和离子辐射具有高度透明度并且与限定路径的X射线靶对准。 至少一个呈细线形式的点火电极相对于中空阴极以正电位突出到等离子体室中。 在中空阴极的一个侧壁中以绝缘和气密方式保持的至少一个阳极设置在靶和栅格的对准侧面并且相对于空心阴极处于正电位。 加速室通过加速栅格与等离子体室相连接。 加速室由与空心阴极的限制壁电气和气密连接的金属壁包围。 加速阴极相对于加速栅格处于高负电位。 加速阴极具有与路径对准并且与加速栅格间隔开的轴和头部。 加速阴极的轴保持在面向加速度格栅的壁中的绝缘气密管道中。

公开(公告)号：US4954751A

公开(公告)日：1990-09-04

申请号：US368872

申请日：1988-10-27

Applicant: Harold R. Kaufman ,  Raymond S. Robinson

Inventor： Harold R. Kaufman ,  Raymond S. Robinson

IPC: H01J3/02 ,  H01J27/16

CPC classification number: H01J3/025 ,  H01J27/16

Abstract: A cathode has a pair of cavities in which are disposed respective electrically isolated electrodes. An inert gas is introduced individually into the cavities. Individually outletting from those cavities are a pair of respective apertures. Radio frequency energy is applied to the electrodes to establish a plasma.

Abstract translation: 阴极具有一对空腔，其中分别设置有电隔离的电极。 将惰性气体单独引入空腔。 从这些空腔单独出口是一对相应的孔。 将射频能量施加到电极以建立等离子体。

公开(公告)号：US4924101A

公开(公告)日：1990-05-08

申请号：US141145

申请日：1988-01-06

Applicant: Noriyuki Sakudo ,  Hifumi Tamura

Inventor： Noriyuki Sakudo ,  Hifumi Tamura

IPC: H01J3/02 ,  H01J27/26 ,  H01J37/073 ,  H01J37/08

CPC classification number: H01J27/26 ,  H01J3/021

Abstract: A charged particle source for emitting a positive ion or electron by applying a positive or negative potential to a tip electrode covered with a liquid substance is disclosed in which mechanical vibration is applied to the tip electrode so that a favorable standing wave is formed in the liquid substance, to vary the shape of a charged-particle emitting portion of the liquid substance periodically, thereby changing the intensity of an emitted, charged-particle beam periodically, and thus a pulsed beam having a repetition rate up to the GHz band can be obtained without increasing the energy dispersion of the beam.

公开(公告)号：US4886992A

公开(公告)日：1989-12-12

申请号：US221681

申请日：1988-07-20

Applicant: Jacques Menet ,  Olivier de Gabrielli

Inventor： Jacques Menet ,  Olivier de Gabrielli

IPC: G21K1/00 ,  H01J3/02

CPC classification number: H01J3/025

Abstract: The instant invention relates to an electron source which contains, in a low pressure chamber, an anode (A), a cathode (K) and means for applying a magnetic field (13). The cathode is constituted by an equipotential cavity (10) provided with an aperture (11) on the side of the anode. The magnetic field is applied parallel to the anode-cathode direction at the aperture.

Abstract translation: 本发明涉及一种在低压室中含有阳极（A），阴极（K）和施加磁场（13）的装置的电子源。 阴极由在阳极侧设置有孔（11）的等电位腔（10）构成。 在孔径处平行于阳极 - 阴极方向施加磁场。

公开(公告)号：US4874981A

公开(公告)日：1989-10-17

申请号：US192341

申请日：1988-05-10

Applicant: Charles A. Spindt

Inventor： Charles A. Spindt

IPC: H01J3/02 ,  H01J9/02

CPC classification number: H01J9/025 ,  H01J3/022

Abstract: Several embodiments of a thin film field emission cathode array are described which automatically shape the beams of emitted particles, without the addition of shaping or other electrode structure. A potential field pattern is established to control the trajectory of the emitted particles, by controlling the electromagnetic interaction of the conductive structures responsible for the particle emission.

Abstract translation: 描述了薄膜场发射阴极阵列的几个实施例，其自动地形成发射的粒子束，而不增加成形或其它电极结构。 通过控制负责颗粒发射的导电结构的电磁相互作用，建立了一个势场模式来控制发射颗粒的轨迹。

公开(公告)号：US4743794A

公开(公告)日：1988-05-10

申请号：US56268

申请日：1987-05-26

Applicant: Martinus H. L. M. Van Den Broek ,  Jan Zwier

Inventor： Martinus H. L. M. Van Den Broek ,  Jan Zwier

IPC: H01J29/04 ,  H01J3/02 ,  H01J29/84

CPC classification number: H01J3/021 ,  H01J29/84

Abstract: Positive ions which are generated in a vacuum tube (1) and can adversely affect the electron emission of a cathode (3) are collected for the major part by a screen grid or diaphragm (5), which forms part of a positive electron lens (4,5). In the case of a semiconductor cathode having a circular emission region (13) having a diameter larger than that of the opening in the screen grid (5), this emission region (13) is struck only by positive ions generated in a small region between the cathode (3) and a first grid (4). These ions moreover have a comparatively low energy so that the emission behavior is to only a limited extent adversely affected by sputtering by positive ions which would remove cathode material (33), such as cesium.

Abstract translation: 在真空管（1）中产生并且可能不利地影响阴极（3）的电子发射的正离子主要通过形成正电子透镜的一部分的屏幕网格或隔膜（5）而被收集 4,5）。 在半导体阴极具有圆形发射区域（13）的情况下，该圆形发射区域（13）的直径大于丝网（5）中的开口的直径，该发射区域（13）仅在由 阴极（3）和第一格栅（4）。 这些离子还具有相对低的能量，使得发射行为仅在有限的程度上受到正离子的溅射的不利影响，正离子将除去诸如铯的阴极材料（33）。