公开(公告)号：US20220208501A1

公开(公告)日：2022-06-30

申请号：US17562801

申请日：2021-12-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ki Nam YUN ,  Yoon-Ho SONG ,  Jun-Tae KANG ,  Jeong-Woong LEE ,  Jin-Woo JEONG

IPC: H01J9/18 ,  H01J9/02 ,  B08B7/00

Abstract: Provided is a method for manufacturing an electric field emission device. The method for manufacturing the electric field emission device includes winding a carbon nanotube yarn around outer circumferential surfaces of a metal plate in a first direction, pressing both side surfaces of the metal plate through a pair of metal structures, wherein a top surface of the metal plate is exposed from the metal structures, and an area of the top surface of the metal plate is less than that of each of both the side surfaces of the metal plate, and cutting the carbon nanotube yarn at an edge portion of the top surface of the metal plate in the first direction to form a plurality of emitters.

公开(公告)号：US20220351929A1

公开(公告)日：2022-11-03

申请号：US17712639

申请日：2022-04-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yoon-Ho SONG ,  Jun-Tae KANG ,  Jae-Woo KIM ,  Jin-Woo JEONG

IPC: H01J35/06 ,  H01J35/18 ,  H01J35/16

Abstract: Provided is an X-ray tube which includes a first electrode, a second electrode spaced apart from the first electrode, a target disposed in a lower portion of the second electrode, an emitter on the first electrode, a third electrode which is positioned between the first electrode and the second electrode and includes an opening at a position perpendicularly corresponding to the emitter, and a spacer provided on the third electrode and surrounding the second electrode. The spacer includes a first section located adjacent to the third electrode and a second section disposed on the first section. The spacer includes a ceramic insulator and conductive dopants dispersed within the ceramic insulator. A concentration of the conductive dopants in the first section of the spacer is greater than a concentration of the conductive dopants in the second section. The third electrode is in contact with the first section of the spacer.

公开(公告)号：US20210166909A1

公开(公告)日：2021-06-03

申请号：US17108634

申请日：2020-12-01

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Yoon-Ho SONG ,  Jun-Tae KANG ,  Jin-Woo JEONG ,  Jae-Woo KIM

IPC: H01J35/06 ,  H01J35/14

Abstract: Provided is an X-ray tube. The X-ray tube includes a cathode electrode, an anode electrode vertically spaced apart from the cathode electrode, an emitter on the cathode electrode, a gate electrode disposed between the cathode electrode and the anode electrode, the gate electrode including an opening at a position corresponding to the emitter, and a spacer provided between the gate electrode and the anode electrode. The spacer includes an insulator and conductive dopants doped in the insulator.

公开(公告)号：US20220399176A1

公开(公告)日：2022-12-15

申请号：US17834463

申请日：2022-06-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Yoon-Ho SONG ,  Jeong-Woong LEE ,  Jun-Tae KANG ,  Seong Jun KIM ,  Jae-Woo KIM ,  Sora PARK ,  Ki Nam YUN ,  Jin-Woo JEONG ,  Sunghoon CHOI

IPC: H01J5/04

Abstract: Provided is a high voltage driving device including a housing and a cathode, an anode, and an insulation structure, which are disposed in the housing. Here, the cathode and the anode are spaced apart from each other with the insulation structure therebetween. Also, the insulation structure includes a first solid insulator disposed adjacent to the cathode and a second solid insulator disposed adjacent to the anode. Also, the first solid insulator has first volumetric resistivity less than second volumetric resistivity of the second solid insulator, and the first solid insulator contacts the cathode.

公开(公告)号：US20140346975A1

公开(公告)日：2014-11-27

申请号：US14283755

申请日：2014-05-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jin-Woo JEONG ,  Yoon-Ho SONG ,  Jae-Woo KIM ,  Jun-Tae KANG

IPC: H05B33/08

CPC classification number: H05B33/08 ,  H01J1/304

Abstract: A field emission device and a method of driving the multi-electrode field emission device having a single driving power source are disclosed. The field emission device includes a cathode electrode, one or more gate electrodes, a voltage division unit, and a power source unit. The cathode electrode is figured such that at least one emitter is formed thereon. The gate electrodes are disposed between an anode electrode and the cathode electrode, and each have one or more openings through which electrons emitted from the emitter can pass. The voltage division unit has one or more divider resistors, and divides a voltage applied from the power source unit using the divider resistors and then applies partial voltages to the one or more gate electrodes. The power source unit includes a single power source, and applies the voltage to the voltage division unit.

Abstract translation: 公开了一种场发射器件和驱动具有单个驱动电源的多电极场致发射器件的方法。 场致发射器件包括阴极电极，一个或多个栅电极，分压单元和电源单元。 阴极被设计成使得至少一个发射极形成在其上。 栅电极设置在阳极电极和阴极电极之间，并且各自具有一个或多个开口，通过该开口从发射体发射的电子可以通过。 分压单元具有一个或多个分压电阻器，并且使用分压电阻器分压从电源单元施加的电压，然后将一部分电压施加到一个或多个栅电极。 电源单元包括单个电源，并将电压施加到分压单元。