公开(公告)号：US20210217573A1

公开(公告)日：2021-07-15

申请号：US16740096

申请日：2020-01-10

Applicant: General Electric Company

Inventor： Timothy John Sommerer ,  Joseph Darryl Michael ,  David John Smith

IPC: H01J17/44 ,  H01J17/06 ,  H01J13/08 ,  H01J13/52

Abstract: A bidirectional gas discharge tube (GDT) includes a discharge chamber, first and second cathodes, a gas disposed within the discharge chamber, and a control grid. The first and second cathodes are disposed within the discharge chamber and include first and second faces, respectively. The first face and the second face are plane-parallel. The gas is configured to insulate the first cathode from the second cathode. The control grid is disposed between the first and second cathodes within the discharge chamber. The control grid is configured to generate an electric field to initiate establishment of a conductive plasma between the first and second cathodes to close a conduction path extending between the first and second cathodes.

公开(公告)号：US10403466B1

公开(公告)日：2019-09-03

申请号：US15933602

申请日：2018-03-23

Applicant: General Electric Company

Inventor： Timothy John Sommerer ,  Svetlana Selezneva

IPC: H01J17/14 ,  H01J17/20 ,  H01J17/06 ,  H01J17/10

Abstract: A gas switch includes a gas-tight housing containing an ionizable gas, an anode disposed within the gas-tight housing, and a cathode disposed within the gas-tight housing, where the cathode includes a conduction surface. The gas switch also includes a control grid positioned between the anode and the cathode, where the control grid is arranged to receive a bias voltage to establish a conducting plasma between the anode and the cathode. In addition, the gas switch includes a plurality of magnets selectively arranged to generate a magnetic field proximate the conduction surface that reduces the kinetic energy of charged particles striking the conduction surface and raises the conduction current density at the cathode surface to technically useful levels.

公开(公告)号：US09627166B2

公开(公告)日：2017-04-18

申请号：US14456835

申请日：2014-08-11

Applicant: Honeywell International Inc.

Inventor： Matthew Clark ,  Dean E. Johnson ,  Bruce A. Seiber

IPC: H01J1/02 ,  H01J17/06 ,  H01J17/16 ,  H01J9/02 ,  G01C19/66

Abstract: A partially-insulated cathode for exciting plasma in a plasma chamber is provided. The partially-insulated cathode includes a conductive structure enclosing a cavity having a cavity surface and an insulating material contiguously covering a portion of the cavity surface from the cavity opening up to an insulation height that is less than a cavity height. Cross-sections of the cavity in X-Y planes have at least one respective cavity-width. A cavity opening has a diameter less than a minimum cavity-width of the at least one cavity-width.

公开(公告)号：US08564199B2

公开(公告)日：2013-10-22

申请号：US13318354

申请日：2011-07-01

Applicant: Maocheng Yan ,  Hsiang-Yin Shih

Inventor： Maocheng Yan ,  Hsiang-Yin Shih

IPC: H01J17/06 ,  H01J17/04

CPC classification number: H01J37/32348 ,  H01J37/32568 ,  H01J37/32825

Abstract: An atmospheric plasma apparatus and a method for manufacturing the same are disclosed. The atmospheric plasma apparatus includes an anode, a cathode, and an insulation medium disposed between the anode and the cathode. An ionizable gas is filled between the anode and the cathode. The cathode includes a plurality of plasma generating and removing units, each of which includes a plasma generating region and a plasma removing region. The plasma generating regions and the plasma removing regions are distributed uniformly and equal to each other in area. Any two plasma removing regions among every three plasma removing regions which are adjacent to each other have a same center-to-center distance. In this way, erosion caused by the plasma to the cathode and the insulation medium may be reduced to prolong the service life of the atmospheric plasma apparatus, and uniformity of cleaning of a substrate surface may be improved.

Abstract translation: 公开了一种大气等离子体装置及其制造方法。 大气等离子体装置包括阳极，阴极和布置在阳极和阴极之间的绝缘介质。 在阳极和阴极之间填充可电离气体。 阴极包括多个等离子体产生和去除单元，每个等离子体产生和去除单元包括等离子体产生区域和等离子体去除区域。 等离子体产生区域和等离子体去除区域在区域中均匀分布相等。 在彼此相邻的每三个等离子体移除区域中的任何两个等离子体去除区域具有相同的中心到中心距离。 以这种方式，可以减少由等离子体对阴极和绝缘介质引起的侵蚀，以延长大气等离子体装置的使用寿命，并且可以提高基板表面的清洁的均匀性。

公开(公告)号：US20120319579A1

公开(公告)日：2012-12-20

申请号：US13318354

申请日：2011-07-01

Applicant: Maocheng Yan ,  Hsiang-Yin Shih

Inventor： Maocheng Yan ,  Hsiang-Yin Shih

IPC: H01J17/06 ,  H01J9/395

CPC classification number: H01J37/32348 ,  H01J37/32568 ,  H01J37/32825

Abstract: An atmospheric plasma apparatus and a method for manufacturing the same are disclosed. The atmospheric plasma apparatus includes an anode, a cathode, and an insulation medium disposed between the anode and the cathode. An ionizable gas is filled between the anode and the cathode. The cathode includes a plurality of plasma generating and removing units, each of which includes a plasma generating region and a plasma removing region. The plasma generating regions and the plasma removing regions are distributed uniformly and equal to each other in area. Any two plasma removing regions among every three plasma removing regions which are adjacent to each other have a same center-to-center distance. In this way, erosion caused by the plasma to the cathode and the insulation medium may be reduced to prolong the service life of the atmospheric plasma apparatus, and uniformity of cleaning of a substrate surface may be improved.

Abstract translation: 公开了一种大气等离子体装置及其制造方法。 大气等离子体装置包括阳极，阴极和布置在阳极和阴极之间的绝缘介质。 在阳极和阴极之间填充可电离气体。 阴极包括多个等离子体产生和去除单元，每个等离子体产生和去除单元包括等离子体产生区域和等离子体去除区域。 等离子体产生区域和等离子体去除区域在区域中均匀分布相等。 在彼此相邻的每三个等离子体移除区域中的任何两个等离子体去除区域具有相同的中心到中心距离。 以这种方式，可以减少由等离子体对阴极和绝缘介质引起的侵蚀，从而延长大气等离子体装置的使用寿命，并且可以提高衬底表面的清洁均匀性。

公开(公告)号：US08143788B2

公开(公告)日：2012-03-27

申请号：US12202252

申请日：2008-08-30

Applicant: Richard R. Hofer ,  Dan M. Goebel ,  Ronnie M. Watkins

Inventor： Richard R. Hofer ,  Dan M. Goebel ,  Ronnie M. Watkins

IPC: H01J17/06

CPC classification number: H01J1/025 ,  B64G1/405 ,  F03H1/0025 ,  H01J3/027

Abstract: An apparatus and method for achieving an efficient central cathode in a Hall effect thruster is disclosed. A hollow insert disposed inside the end of a hollow conductive cathode comprises a rare-earth element and energized to emit electrons from an inner surface. The cathode employs an end opening having an area at least as large as the internal cross sectional area of the rare earth insert to enhance throughput from the cathode end. In addition, the cathode employs a high aspect ratio geometry based on the cathode length to width which mitigates heat transfer from the end. A gas flow through the cathode and insert may be impinged by the emitted electrons to yield a plasma. One or more optional auxiliary gas feeds may also be employed between the cathode and keeper wall and external to the keeper near the outlet.

Abstract translation: 公开了一种在霍尔效应推进器中实现高效中心阴极的装置和方法。 设置在中空导电阴极的端部内部的中空插入件包括稀土元素并被激发以从内表面发射电子。 阴极采用具有至少与稀土插入件的内部横截面积相同的面积的端部开口，以增加从阴极端部的通过量。 此外，阴极采用基于阴极长度至宽度的高纵横比几何形状，其减小了端部的热传递。 通过阴极和插入件的气体流可以被发射的电子撞击以产生等离子体。 还可以在阴极和保持器壁之间使用一个或多个可选的辅助气体进料并且在出口附近的保持器的外部。

公开(公告)号：US6097149A

公开(公告)日：2000-08-01

申请号：US50006

申请日：1998-03-30

Applicant: Minoru Miyaji ,  Katsumi Kunii

Inventor： Minoru Miyaji ,  Katsumi Kunii

IPC: H01J11/12 ,  H01J11/14 ,  H01J11/22 ,  H01J11/24 ,  H01J11/26 ,  H01J11/28 ,  H01J11/32 ,  H01J11/34 ,  H01J11/36 ,  H01J11/38 ,  H01J11/42 ,  H01J11/44 ,  H01J17/06 ,  H01J17/49

CPC classification number: H01J11/12 ,  H01J11/24 ,  H01J11/38 ,  H01J2211/225 ,  H01J2211/444

Abstract: On a first substrate provided on a display surface of a plasma display panel, bus electrodes (12a, 14a) in X and Y electrode lines (12, 14) forming a pair of display electrode lines are formed with an Ag material containing a black additive (RuO.sub.2, etc.) by a screen printing. This prevents external light from being reflected at the surfaces of the bus electrodes (12a, 14a) on the display side of an FP substrate (10) to improve the display contrast. The bus electrodes (12a, 14a) may be formed as a multi-layer structure. In this case, for example, the lower-layer bus electrodes are formed with a black metal material and the upper-layer bus electrodes are formed with a light-reflecting material layer, which improves light utilization efficiency and further improves the contrast.

Abstract translation: 在设置在等离子体显示面板的显示面上的第一基板上，在形成一对显示电极线的X电极线和Y电极线（12,14）中的总线电极（12a，14a）形成有含有黑色添加剂的Ag材料 （RuO2等）通过丝网印刷。 这防止外部光在FP基板（10）的显示侧的总线电极（12a，14a）的表面反射，以提高显示对比度。 总线电极（12a，14a）可以形成为多层结构。 在这种情况下，例如，下层总线电极由黑色金属材料形成，上层总线电极形成有光反射材料层，从而提高光的利用效率，进一步提高对比度。

公开(公告)号：US5995355A

公开(公告)日：1999-11-30

申请号：US101603

申请日：1998-07-10

Applicant: Wolfgang Daeumer

Inventor： Wolfgang Daeumer

IPC: H01J17/06 ,  H01T1/22 ,  H02H1/00

CPC classification number: H01T1/22 ,  H01J17/06

Abstract: In order to optimize the so-called light-dark effect, i.e., the difference in ignition voltage between the first and second ignition after dark storage in gas-filled discharge paths, an additional component made of an oxide compound of cesium and a transition metal such as tungsten, chromium, niobium, vanadium or molybdenum is added in a quantity of 5 to 25% by weight to the activating compound which is comprised of several components. The other components of the activating compound include a barium compound and a transition metal in metallic form such as titanium, and an alkaline halide or an alkaline earth halide and/or sodium silicate and/or potassium silicate as a basic component.

Abstract translation: PCT No.PCT / DE97 / 00055 Sec。 371日期：1998年7月10日 102（e）1998年7月10日PCT PCT 1997年1月8日PCT公布。 公开号WO97 / 25760 PCT 日期1997年7月17日为了优化所谓的暗暗效应，即在气体填充放电路径中暗存储之后的第一和第二点火之间的点火电压的差异，由氧化物化合物 铯和过渡金属如钨，铬，铌，钒或钼以5至25重量％的量加入到由几种组分组成的活化化合物上。 活化化合物的其它组分包括钡化合物和金属形式的过渡金属如钛，碱性卤化物或碱土金属卤化物和/或硅酸钠和/或硅酸钾作为基本组分。

公开(公告)号：US5982095A

公开(公告)日：1999-11-09

申请号：US530978

申请日：1995-09-19

Applicant: Sungho Jin ,  Gregory Peter Kochanski ,  Wei Zhu

Inventor： Sungho Jin ,  Gregory Peter Kochanski ,  Wei Zhu

IPC: H01J9/02 ,  H01J11/12 ,  H01J11/22 ,  H01J17/06 ,  H01J17/49

CPC classification number: H01J11/12 ,  H01J11/22 ,  H01J17/066 ,  H01J2211/225 ,  H01J2217/49

Abstract: Improved plasma displays utilize electrodes including low electron affinity (LEA) materials such as diamond. In dc displays the LEA materials are disposed on the cathode. In ac displays the LEA materials are disposed on the dielectric layers of both electrodes. The improved displays exhibit reduced operating voltage, higher resolution, and enhanced robustness.

Abstract translation: 改进的等离子体显示器使用包括诸如金刚石的低电子亲和力（LEA）材料的电极。 在直流显示器中，LEA材料设置在阴极上。 在交流显示中，LEA材料设置在两个电极的电介质层上。 改进的显示器显示出降低的工作电压，更高的分辨率和增强的鲁棒性。

公开(公告)号：US5952772A

公开(公告)日：1999-09-14

申请号：US10063

申请日：1998-01-21

Applicant: Neil Anthony Fox ,  Wang Nang Wang

Inventor： Neil Anthony Fox ,  Wang Nang Wang

IPC: H01J1/308 ,  H01J1/304 ,  H01J1/312 ,  H01J17/06 ,  H01J61/067 ,  H01J63/02 ,  H01J63/08 ,  H01J29/46

CPC classification number: H01J1/304 ,  H01J17/066 ,  H01J61/0677 ,  H01J2201/30457 ,  H01J61/78

Abstract: An electron emitter (2) has a semiconductor substrate (20) doped with an n-type region (21). A diamond layer (24) is doped by ion implantation with a p-type dopant to form a graded dopant profile region (27) that increases away from the upper surface of the diamond layer (24) and a thin insulating region (28) separating the p-type region (27) from the n-type region (21). The emitter (2) has a first electrical contact (23) on a lower surface of the substrate (20) and a second electrical contact (25) on the upper surface of the diamond layer (24) such that a voltage can be applied across the emitter (2) to cause tunneling of electrons from the n-type region (21) through the insulating region (28) into the p-type region (27), causing emission of electrons from an exposed surface (29). A lamp or display (1) includes several such electron emitters (2) and contains gas at reduced pressure, which is ionized by the emitted electrons, thereby generating UV radiation, which causes a fluorescent layer (5) on a transparent window (3) to produce visible light.

Abstract translation: 电子发射体（2）具有掺杂有n型区域（21）的半导体衬底（20）。 金刚石层（24）通过用p型掺杂剂的离子注入掺杂以形成从金刚石层（24）的上表面增加的渐变掺杂物分布区域（27）和分离的薄绝缘区域（28） 来自n型区域（21）的p型区域（27）。 发射极（2）在衬底（20）的下表面上具有第一电接触（23），并且在金刚石层（24）的上表面上具有第二电接触（25），使得可跨越 所述发射极（2）使电子从所述n型区域（21）穿过所述绝缘区域（22）穿透到所述p型区域（27）中，从而暴露出来的表面（29）发射电子。 灯或显示器（1）包括几个这样的电子发射器（2），并且包含减压的气体，其被发射的电子电离，从而产生紫外线辐射，其在透明窗口（3）上引起荧光层（5） 以产生可见光。