公开(公告)号：EP2226828A1

公开(公告)日：2010-09-08

申请号：EP07873394.6

申请日：2007-12-28

Applicant: Institute For Metals Superplasticity Problems Of The Russian Academy Of Sciences (IMSP RAS)

Inventor： MULYUKOV, Radik Rafikovich ,  YUMAGUZIN, Yulai Mukhametovich ,  ZUBAIROV, Linar Raisovich ,  KHISAMOV, Rinat Khamzovich

IPC: H01J9/02 ,  H01J1/30

CPC classification number: H01J1/304 ,  H01J9/025 ,  H01J2201/304

Abstract: The invention relates to the electronic engineering and, more specifically, to the fields thereof where the physical phenomenon of electron, or ion-electron, or cold emission is used, and concerns a cold cathode and a method for fabricating the same. Provided is a method for fabricating a cold cathode, according to which a cathode workpiece of a metal or alloy is subjected to severe plastic deformation to transform an initial structure of the workpiece into a fragmented structure comprising fragments of nanometric size or into a mixed structure comprising grains and fragments of nanometric size, characterized in that , after the severe plastic deformation, the cathode workpiece is subjected to a low-temperature annealing for transforming at least part of said fragments into grains of nanometric size at a temperature not lower than the operating temperature T oper of the cathode. The invention is an improvement of the method for fabricating a cold cathode using severe plastic deformation and allows to further enhance efficiency of the cathode via a reduction in the electronic work function value.

Abstract translation: 本发明涉及电子工程，更具体地说，涉及其中使用电子，离子电子或冷发射的物理现象以及涉及冷阴极及其制造方法的领域。 提供一种制造冷阴极的方法，根据该方法，金属或合金的阴极工件经受严重的塑性变形，以将工件的初始结构转变成包括纳米尺寸碎片的碎片结构或混合结构，包括 颗粒和纳米尺寸的碎片，其特征在于，在严重塑性变形之后，对阴极工件进行低温退火，以在不低于工作温度的温度下将至少部分所述碎片转化成纳米尺寸的颗粒 T操作阴极。 本发明是使用严格塑性变形制造冷阴极的方法的改进，并且允许通过电子功函数值的降低进一步提高阴极的效率。

公开(公告)号：EP1599890A4

公开(公告)日：2008-07-09

申请号：EP03779024

申请日：2003-12-26

Applicant: POSTECH FOUNDATION

Inventor： LEE KUN-HONG ,  HWANG SUN-KYU ,  LEE OK-JOO

IPC: H01J1/30 ,  H01J31/12

CPC classification number: H01J31/127 ,  H01J2201/304 ,  H01J2329/00

Abstract: A field emission display (FED) with an integrated triode structure is provided. The FED can be manufactured without using a complex packaging process and have a significantly reduced well diameter and a significantly reduced cathode-to-anode distance. In the FED, front and rear panels form a single body using an anode insulating layer as an intermediate. A method for manufacturing the FED using anodic oxidation is also provided.

公开(公告)号：EP1825490A1

公开(公告)日：2007-08-29

申请号：EP05817517.5

申请日：2005-12-12

Applicant: THALES

Inventor： LEGAGNEUX, Pierre ,  GANGLOFF, Laurent ,  MINOUX, Eric ,  SCHNELL, Jean-Philippe ,  ANDRE, Frédéric ,  DIEUMEGARD, Dominique

IPC: H01J1/34 ,  H01J1/304 ,  H01J23/04

CPC classification number: H01J1/304 ,  B82Y10/00 ,  H01J1/34 ,  H01J23/04 ,  H01J2201/304 ,  H01J2201/30469 ,  H01J2223/04

Abstract: The invention relates to an optically controlled field emission cathode comprising a substrate (10, 20, 30, 40, 50, 60, 70, 80, 90, 100) provided with at least one conductive surface (11, 21, 31, 41, 51, 61, 71, 81, 91, 101) and at least one conductive emitter element (16, 26, 36, 46, 56, 66, 76, 86, 96, 106) arranged near the conductive surface, wherein the inventive cathode is characterised in that it also comprises at least one photoconductive element (13, 23, 33, 43, 53, 63, 73, 83, 93, 103) electrically in series connected between at least one emitting element and the conductive surface of the substrate. An amplifier tube provided with the inventive cathode is also disclosed. Said invention is used, in particular for microwave amplification in telecommunication applications.

公开(公告)号：EP1258022A2

公开(公告)日：2002-11-20

申请号：EP01903327.3

申请日：2001-01-25

Applicant: Extreme Devices, Inc.

Inventor： SCHUELLER, Randolph, D. ,  KALAR, Kent, R. ,  KLOBA, Anthony, A.

IPC: H01J3/02 ,  H01J29/48

CPC classification number: H01J3/021 ,  H01J29/481 ,  H01J29/485 ,  H01J2201/304

Abstract: Apparatus and method are provided for a package structure that enables mounting of a field-emitting cathode into an electron gun. A non-conducting substrate has the cathode attached and the cathode is electrically connected to a pin through the substrate. Other pins are electrically connected to electrodes integral with the cathode. Three cathodes may be mounted on a die flag region to form an electron gun suitable for color CRTs. Accurate alignment of an emitter array to the apertures in the electron gun and other electrodes such as a focusing lens is achieved. The single package design may be used for many gun sizes. Assembly and attachment of the emitter array to the electron gun during construction of the gun can lower cost of construction.

公开(公告)号：EP0812465B1

公开(公告)日：2002-06-05

申请号：EP96941218.8

申请日：1996-11-30

Applicant: ORION ELECTRIC CO., LTD.

Inventor： HYUN, Chang Ho ,  KWON, Oh Kyong

IPC: H01J1/30

CPC classification number: G09G3/22 ,  G09G2300/0828 ,  H01J2201/304 ,  H01J2329/00

Abstract: A cell driving device of a field emission display having a field emission pixel cell with a cathode (10) for emitting electrons and a gate electrode (12) for focusing and accelerating the electrons emitted from the cathode. The cell driving device includes: a first switching unit (14) for switching a first voltage (Vdd1) provided to the gate electrode (12); at least more than two transistors (18, 20, 22, 24) for current control, which are in parallel connected to form a current mirror between the cathode and a second voltage (Vdd2); a voltage dividing unit coupled between a third voltage (Vdd3) and the second voltage (Vdd2) to drive the at least more than two transistors (18, 20, 22, 24) for current control at the same voltage; at least more than two transistors for voltage switch each connected between the voltage dividing unit and the transistor for current control; and a controlling unit (38) for controlling at least more than two transistors (30, 32, 34, 36) for voltage switch according to the size of a video signal (VS).

公开(公告)号：EP1060496A1

公开(公告)日：2000-12-20

申请号：EP99911162.8

申请日：1999-03-05

Applicant: Medtronic AVE, Inc.

Inventor： CHORNENKY, Victor, I. ,  SCHREINER, Dale, L. ,  KERSLICK, Graham, S. ,  SATTESON, Michael, R. ,  JAAFER, Ali

IPC: H01J35/00

CPC classification number: A61N5/1001 ,  H01J2201/304 ,  H01J2235/164 ,  H05G1/20

Abstract: An apparatus and method for exposing a treatment site in a patient to x-ray radiation is described that uses a pulse voltage source (105), where the x-ray emitter (101) employs a cold cathode. The invention may further include a current sensor (111) for measuring a current through the x-ray emitter (101), and, optionally, a current integrator (113) connected to the current sensor (111). Each voltage pulse may be discontinued when a predetermined amount of charge has passed through the emitter (101). The step of moving an x-ray emitter (101) past a treatment area at a rate determined by the amount of charge that has passed through the emitter (101) is also described. The present invention also includes an x-ray emitter device (101) with rectangular voltage pulses added to a base direct current voltage. Another step of the invention may be applying a voltage pulse cycle to the x-ray emitter (101) where a duration of the pulse is 2-5 times lower than a thermal relaxation time of an emitter (101).

公开(公告)号：EP1057500A1

公开(公告)日：2000-12-06

申请号：EP99850222.3

申请日：1999-12-30

Applicant: Radi Medical Technologies AB

Inventor： Smith, Leif ,  Tenerz. Lars ,  Tirén, Jonas

IPC: A61N5/10

CPC classification number: A61N5/1001 ,  A61N5/1007 ,  A61N2005/1008 ,  H01J35/08 ,  H01J35/32 ,  H01J2201/304 ,  H01J2235/087

Abstract: The invention relates to an apparatus for the controlled delivery of ionizing radiation to a therapy location. It comprises a source (4) of ionizing radiation provided at the distal end of an elongated member (6). It also has a control unit (12) for controlling the movement of said radiation source (4) at the therapy location, via a driving unit (21, 22; 23, 24, 25, 26). A method according to the invention comprises controlling the radiation dose at the therapy location, by controlling the movement of the source.

Abstract translation: 本发明涉及一种用于将电离辐射控制递送到治疗位置的装置。 它包括设置在细长构件（6）的远端处的电离辐射源（4）。 它还具有控制单元（12），用于经由驱动单元（21,22; 23,24,25,26）控制在治疗位置处的所述辐射源（4）的移动。 根据本发明的方法包括通过控制源的运动来控制治疗位置处的辐射剂量。

公开(公告)号：EP1050062A1

公开(公告)日：2000-11-08

申请号：EP99972777.9

申请日：1999-10-28

Applicant: Etec Systems, Inc.

Inventor： KIM, Ho-Seob ,  LEE, Kim, Y. ,  CHANG, T., H., P.

IPC: H01J3/02 ,  H01J9/18 ,  H01J37/26 ,  H01J37/073

CPC classification number: H01J9/18 ,  H01J37/067 ,  H01J2201/304 ,  H01J2237/1501

Abstract: A method and an accompanied apparatus for aligning an electron emitter with an extractor hole of a microcolumn. Four V-grooves (240), defined together with the window (220) for forming the membrane and having bottoms situated on two axis are microfabricated on a chip. The axis intersect at a right angle and defines a center point for the extractor hole (230). The V-grooves are then used as references to align the electron emitter with the extractor hole, one axis at a time. The emitter is precisely aligned to the extractor hole because the extractor hole was formed with reference to the V-grooves. The thickness of the chip is used as the spacing reference between the emitter and the extractor.

公开(公告)号：EP0812465A1

公开(公告)日：1997-12-17

申请号：EP96941218.0

申请日：1996-11-30

Applicant: ORION ELECTRIC CO., LTD.

Inventor： HYUN, Chang Ho ,  KWON, Oh Kyong

IPC: H04N5 ,  G09G3

CPC classification number: G09G3/22 ,  G09G2300/0828 ,  H01J2201/304 ,  H01J2329/00

Abstract: A cell driving device of a field emission display having a field emission pixel cell with a cathode (10) for emitting electrons and a gate electrode (12) for focusing and accelerating the electrons emitted from the cathode. The cell driving device includes: a first switching unit (14) for switching a first voltage (Vdd1) provided to the gate electrode (12); at least more than two transistors (18, 20, 22, 24) for current control, which are in parallel connected to form a current mirror between the cathode and a second voltage (Vdd2); a voltage dividing unit coupled between a third voltage (Vdd3) and the second voltage (Vdd2) to drive the at least more than two transistors (18, 20, 22, 24) for current control at the same voltage; at least more than two transistors for voltage switch each connected between the voltage dividing unit and the transistor for current control; and a controlling unit (38) for controlling at least more than two transistors (30, 32, 34, 36) for voltage switch according to the size of a video signal (VS).

公开(公告)号：EP0812464A1

公开(公告)日：1997-12-17

申请号：EP96941217.0

申请日：1996-11-30

Applicant: ORION ELECTRIC CO., LTD.

Inventor： HYUN, Chang Ho ,  KWON, Oh Kyong

IPC: H04N5 ,  G09G3

CPC classification number: G09G3/22 ,  G09G3/2011 ,  G09G3/2074 ,  H01J2201/304 ,  H01J2329/00

Abstract: A cell driving circuit of an FED, including: an electrode plate (10) connected to ground potential, for installing a plurality of cathodes (C11 to C44) which serve to emit electrons; two or more gate electrodes (G1 to G4) disposed in the upper portion of the cathodes (C11 to C44); two or more switching units (T1 to T4) for switching voltages to be applied to the two or more gate electrodes (G1 to G4); and a control unit (20) for driving the number of the two or more switching units (T1 to T4) corresponding to size of a video signal (VS) in accordance with the size of the video signal (VS).