公开(公告)号：US3662210A

公开(公告)日：1972-05-09

申请号：US3662210D

申请日：1970-04-28

Applicant: VIKTOR FEDOROVICH MAXIMOV

Inventor： MAXIMOV VIKTOR FEDOROVICH

IPC: H01J1/146 ,  H01J23/00 ,  H01J1/14 ,  H01J1/48

CPC classification number: H01J1/146 ,  H01J23/00 ,  Y10S428/925 ,  Y10S428/934 ,  Y10S428/937 ,  Y10S428/938 ,  Y10T428/12778 ,  Y10T428/12903 ,  Y10T428/12917 ,  Y10T428/12986

Abstract: A copper electrode with a multi-layer coating wherein, for example, the outer layer is of tungsten and the inner layer is of iron, the outer layer functioning as a refractory material and the inner layer being a transitional layer having thermal physical properties between those of the electrode and those of the outer layer. Electrode with special coating to protect the same against heat.

Abstract translation: 一种具有多层涂层的铜电极，其中例如外层为钨并且内层为铁，外层起耐火材料的作用，内层为过渡层，其具有热物理性能 的电极和外层的电极。 具有特殊涂层的电极，以保护相同的热量。

公开(公告)号：US3413510A

公开(公告)日：1968-11-26

申请号：US52279466

申请日：1966-01-24

Applicant: NASA USA

Inventor： KERSLAKE WILLIAM R

IPC: F03H1/00 ,  H01J1/146

CPC classification number: F03H1/00 ,  H01J1/146

公开(公告)号：US2682511A

公开(公告)日：1954-06-29

申请号：US20121950

申请日：1950-12-16

Applicant: RAYTHEON MFG CO

Inventor： CRONIN LEO J

IPC: H01J1/146

CPC classification number: H01J1/146

公开(公告)号：US2149656A

公开(公告)日：1939-03-07

申请号：US4858935

申请日：1935-11-06

Applicant: TUNGSTEN ELECTRODEPOSIT CORP

Inventor： HOWARD ARMSTRONG HARRY ,  BURLEY MENEFEE ARTHUR

IPC: H01J1/146 ,  H01J5/08

CPC classification number: H01J1/146 ,  H01J5/08 ,  Y10S428/935 ,  Y10T428/12778 ,  Y10T428/12986

公开(公告)号：US2091554A

公开(公告)日：1937-08-31

申请号：US4329735

申请日：1935-10-03

Applicant: BELL TELEPHONE LABOR INC

Inventor： MENDENHALL HALLAM E

IPC: H01J1/146 ,  H01J9/04

CPC classification number: H01J1/146 ,  H01J9/042 ,  Y10S428/935 ,  Y10S428/938 ,  Y10T428/12576 ,  Y10T428/12771 ,  Y10T428/12833 ,  Y10T428/1284

公开(公告)号：US12027340B2

公开(公告)日：2024-07-02

申请号：US18510302

申请日：2023-11-15

Applicant: Kimball Physics, Inc.

Inventor： Andrea Michelle Calvey ,  George Douglas Calvey

IPC: H01J1/18 ,  H01J1/146 ,  H01J1/88 ,  H01J9/08

CPC classification number: H01J1/18 ,  H01J1/146 ,  H01J1/88 ,  H01J9/08 ,  H01J2201/2889

Abstract: A cathode device includes an emitter tip for generating electrons. An elongate heater is included having proximal and distal ends. The emitter tip can be located at the distal end of the heater. Two spaced apart legs can extend away from the distal end of the heater, terminating at the proximal end and forming an elongate slot therebetween. Two electrical contacts can compressively engage respective opposite outer surfaces of the two legs at the proximal end of the heater to mechanically secure and electrically connect the two legs of the heater to respective electrical contacts at a junction that is at a location spaced away from the emitter tip to keep the junction cooler.

公开(公告)号：US20240161994A1

公开(公告)日：2024-05-16

申请号：US18510302

申请日：2023-11-15

Applicant: Kimball Physics, Inc.

Inventor： Andrea Michelle Calvey ,  George Douglas Calvey

IPC: H01J1/18 ,  H01J1/146 ,  H01J1/88

CPC classification number: H01J1/18 ,  H01J1/146 ,  H01J1/88 ,  H01J2201/2889

Abstract: A cathode device includes an emitter tip for generating electrons. An elongate heater is included having proximal and distal ends. The emitter tip can be located at the distal end of the heater. Two spaced apart legs can extend away from the distal end of the heater, terminating at the proximal end and forming an elongate slot therebetween. Two electrical contacts can compressively engage respective opposite outer surfaces of the two legs at the proximal end of the heater to mechanically secure and electrically connect the two legs of the heater to respective electrical contacts at a junction that is at a location spaced away from the emitter tip to keep the junction cooler.

公开(公告)号：US20210217572A1

公开(公告)日：2021-07-15

申请号：US17067734

申请日：2020-10-11

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

Inventor： XIN-HE YANG ,  PENG LIU ,  KAI-LI JIANG ,  SHOU-SHAN FAN

IPC: H01J9/04 ,  H01J1/144 ,  H01J1/304 ,  H01J1/146

Abstract: A thermionic emission device comprises a first electrode, a second electrode, a single carbon nanotube, an insulating layer and a gate electrode. The gate electrode is located on a first surface of the insulating layer. The first electrode and the second electrode are located on a second surface of the insulating layer and spaced apart from each other. The carbon nanotube comprises a first end, a second end opposite to the first end, and a middle portion located between the first end and the second end. The first end of the carbon nanotube is electrically connected to the first electrode, and the second end of the carbon nanotube is electrically connected to the second electrode.

公开(公告)号：US10121627B1

公开(公告)日：2018-11-06

申请号：US15794023

申请日：2017-10-26

Applicant: Edwards Vacuum LLC

Inventor： Anthony Wynohrad

IPC: H01J1/146 ,  H01J9/04 ,  H01J9/18

Abstract: A method includes assessing a plurality of Titanium plates to determine a grain size for each plate and removing all Titanium plates with an average grain size that is larger than a threshold size from the plurality of Titanium plates. One of the Titanium plates remaining in the plurality of Titanium plates after the removing step is then used to form a cathode for an ion pump.

公开(公告)号：US09240301B1

公开(公告)日：2016-01-19

申请号：US13851732

申请日：2013-03-27

Applicant: Applied Physics Technologies, Inc.

Inventor： William A. Mackie ,  Gerald G. Magera

IPC: H01J1/14 ,  H01J1/146 ,  H01J19/10 ,  H01J1/148

CPC classification number: H01J1/148 ,  H01J1/14 ,  H01J1/146 ,  H01J19/10 ,  H01J37/06 ,  H01J2201/196 ,  H01J2201/2889 ,  H01J2201/30484 ,  H01J2201/317 ,  H01J2237/06316

Abstract: An electron source is made from mixed-metal carbide materials of high refractory nature. Producing field-enhanced thermionic emission, i.e., thermal-field or extended Schottky emission, from these materials entails the use of a certain low work function crystallographic direction, such as, for example, (100), (210), and (310). These materials do not naturally facet because of their refractory nature. The disclosed electron source made from transition metal carbide material is especially useful when installed in a scanning electron microscope (SEM) performing advanced imaging applications that require a high brightness, high beam current source.

Abstract translation: 电子源由具有高耐火性质的混合金属碳化物材料制成。 从这些材料产生场强增强的热离子发射，即热场或延伸的肖特基发射需要使用某种低功函数的晶体学方向，例如（100），（210）和（310） 。 这些材料由于其耐火性质而不自然而然。 所披露的由过渡金属碳化物材料制成的电子源在安装在需要高亮度，远光束电流源的先进成像应用的扫描电子显微镜（SEM）中是特别有用的。