公开(公告)号：WO2004086439A2

公开(公告)日：2004-10-07

申请号：PCT/US2004/002986

申请日：2004-02-03

Applicant: THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL ,  LU, Jianping ,  ZHOU, Otto ,  CHENG, Yuan

Inventor： LU, Jianping ,  ZHOU, Otto ,  CHENG, Yuan

IPC: H01J

CPC classification number: H01J35/06 ,  A61B6/032 ,  A61B6/4021 ,  A61B6/4028 ,  A61B6/405 ,  A61B6/4488 ,  A61B6/482 ,  B82Y10/00 ,  H01J3/021 ,  H01J35/065 ,  H01J35/08 ,  H01J35/105 ,  H01J35/14 ,  H01J35/22 ,  H01J35/28 ,  H01J35/30 ,  H01J2201/30469 ,  H01J2235/06 ,  H01J2235/062 ,  H01J2235/064 ,  H01J2235/068 ,  H05G1/34

Abstract: Methods and apparatus for independent control of electron emission current and x-ray energy in x-ray tubes are provided. The independent control can be accomplished by adjusting the distance between the cathode and anode. The independent control can also be accomplished by adjusting the temperature of the cathode. The independent control can also be accomplished by optical excitation of the cathode. The cathode can include field emissive materials such as carbon nanotubes.

Abstract translation: 提供了用于独立控制x射线管中的电子发射电流和x射线能量的方法和装置。 独立控制可以通过调节阴极和阳极之间的距离来实现。 独立控制也可以通过调节阴极的温度来实现。 独立控制也可以通过阴极的光学激发来实现。 阴极可以包括诸如碳纳米管的场发射材料。

公开(公告)号：WO2004045267A2

公开(公告)日：2004-06-03

申请号：PCT/US2003/026571

申请日：2003-08-23

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA ,  JIN, Sungho

Inventor： JIN, Sungho

IPC: H01J1/46 ,  H01J1/62 ,  H01J3/02 ,  H01J9/00 ,  H01J9/02 ,  H01J21/10 ,  H01L21/00

CPC classification number: H01J3/021 ,  H01J9/025 ,  H01J21/10 ,  Y10S977/939

Abstract: The invention comprises a method of fabricating a vacuum microtube device comprising the steps of forming a cathode layer comprising an array of electron emitters, forming a gate layer comprising an array of openings for passing electrons from the electron emitters, and forming an anode layer for receiving electrons from the emitters. The cathode gate layer and the anode layer are vertically aligned and bonded together with intervening spacers on a silicon substrate so that electrons from respective emitters pass through respective gate openings to the anode. The use of substrate area is highly efficient and electrode spacing can be precisely controlled. An optional electron multiplying structure providing secondary electron emission material can be disposed between the gate layer and the anode in the path of emitted electrons.

Abstract translation: 本发明包括一种制造真空微管装置的方法，包括以下步骤：形成包括电子发射体阵列的阴极层，形成包含用于使来自电子发射体的电子的开口阵列的栅极层，以及形成用于接收的阳极层 来自发射体的电子。 阴极栅极层和阳极层与硅衬底上的中间间隔物垂直对准并结合在一起，使得来自各个发射体的电子通过相应的栅极开口到达阳极。 衬底面积的使用是高效的，电极间距可以精确控制。 提供二次电子发射材料的可选的电子倍增结构可以在发射电子的路径中设置在栅极层和阳极之间。

公开(公告)号：WO2003069649A1

公开(公告)日：2003-08-21

申请号：PCT/JP2002/005964

申请日：2002-06-14

Applicant: 株式会社渡邊商行 ,  杉野 隆 ,  楠原 昌樹 ,  梅田 優

Inventor： 杉野 隆 ,  楠原 昌樹 ,  梅田 優

IPC: H01J1/304

CPC classification number: B82Y10/00 ,  H01J3/021 ,  H01J2201/304

Abstract: A high-performance electron emitter capable of emitting electrons at low voltage with high luminance and leading to further improvement of the electron emission characteristic of a Spindt-type cold cathode, a carbon nanotube, and a carbon nanofiber. The electron emitter is provided as a key device of a flat panel display, an imager, an electron beam device, a microwave traveling-wave tube, or an illuminator. A film having an electric field therein, having a thickness of below 50 nm and an electron affinity of below 4.0 eV is formed on a Spindt-type cold cathode, a carbon nanotube, a carbon nanofiber, and a metal or semiconductor substrate having an irregular surface to fabricate an electron emitter. The film is made of a compound of a nitride atom and a group III element atom, such as aluminum nitride, boron nitride, aluminum boron nitride, aluminum gallium nitride, or boron gallium nitride, boron carbon nitride, boron carbide, carbon nitride, or an oxide containing boron.

Abstract translation: 能够以高亮度低电压发射电子且进一步提高Spindt型冷阴极，碳纳米管和碳纳米纤维的电子发射特性的高性能电子发射体。 电子发射器被提供为平板显示器，成像器，电子束器件，微波行波管或照明器的关键器件。 在Spindt型冷阴极，碳纳米管，碳纳米纤维和具有不规则形状的金属或半导体衬底上形成厚度小于50nm，电子亲和力低于4.0eV的膜， 表面以制造电子发射体。 该膜由氮化物，氮化硼，氮化硼，氮化镓，氮化硼，氮化硼，碳化硼，氮化碳等氮化物和III族元素原子的化合物构成。 含硼的氧化物。

公开(公告)号：WO0156051A3

公开(公告)日：2001-12-13

申请号：PCT/US0102519

申请日：2001-01-25

Applicant: EXTREME DEVICES INC

Inventor： SCHUELLER RANDOLPH D ,  KALAR KENT R ,  KLOBA ANTHONY A

IPC: H01J9/18 ,  H01J3/02 ,  H01J29/04 ,  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.

Abstract translation: 提供了一种能够将场发射阴极安装到电子枪中的封装结构的装置和方法。 非导电衬底具有阴极，并且阴极通过衬底与引脚电连接。 其他引脚电连接到与阴极集成的电极。 三个阴极可以安装在管芯标记区域上以形成适用于彩色CRT的电子枪。 实现了发射器阵列与电子枪和其它电极（例如聚焦透镜）中的孔的准确对准。 单个包装设计可用于许多喷枪尺寸。 在施工期间将发射器阵列组装和附接到电子枪可以降低施工成本。

公开(公告)号：WO01056051A2

公开(公告)日：2001-08-02

申请号：PCT/US2001/002519

申请日：2001-01-25

IPC: H01J9/18 ,  H01J3/02 ,  H01J29/04 ,  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.

Abstract translation: 提供了一种能够将场发射阴极安装到电子枪中的封装结构的装置和方法。 非导电衬底具有阴极，并且阴极通过衬底与引脚电连接。 其他引脚电连接到与阴极集成的电极。 三个阴极可以安装在管芯标记区域上以形成适用于彩色CRT的电子枪。 实现了发射器阵列与电子枪和其它电极（例如聚焦透镜）中的孔的准确对准。 单个包装设计可用于许多喷枪尺寸。 在施工期间将发射器阵列组装和附接到电子枪可以降低施工成本。

公开(公告)号：WO99039361A1

公开(公告)日：1999-08-05

申请号：PCT/US1999/001841

申请日：1999-01-29

IPC: H01J3/30 ,  H01J1/304 ,  H01J1/316 ,  H01J3/02 ,  H01J3/08 ,  H01J3/18 ,  H01J29/04 ,  H01J29/46 ,  H01J29/52 ,  H01J29/62 ,  H01J29/74 ,  H01J31/12 ,  H01J1/46 ,  H01J1/62 ,  H01J21/10 ,  H01J63/04

CPC classification number: H01J29/467 ,  H01J3/021 ,  H01J3/022 ,  H01J29/04 ,  H01J2329/00

Abstract: A plurality of field emission cathodes (601) generate an emission of electrons, wherein the emission of electrons is then controlled and focused using various electrodes (602, 603, 604) to produce an electron beam. Horizontal and vertical deflection techniques (605, 606, respectively), similar to those used within a cathode ray tube, operate to scan the individual electron beams onto portions of a phosphor screen (401) in order to generate images. The use of the plurality of field emission cathodes provides for a flatter screen depth than possible with a typical cathode ray tube.

Abstract translation: 多个场发射阴极（601）产生电子发射，其中然后使用各种电极（602,603,604）控制和聚焦电子的发射以产生电子束。 与阴极射线管中使用的那些类似的水平和垂直偏转技术（605,606）分别操作以将各个电子束扫描到荧光屏（401）的部分上以产生图像。 使用多个场致发射阴极提供比通常的阴极射线管更可能的屏幕深度。

公开(公告)号：WO98052228A1

公开(公告)日：1998-11-19

申请号：PCT/US1998/010007

申请日：1998-05-15

IPC: G09G3/22 ,  H01J1/304 ,  H01L29/06 ,  G09G3/10 ,  H01J1/05 ,  H01J1/14 ,  H01J1/38 ,  H01J1/48 ,  H01J19/06 ,  H01L29/12

CPC classification number: H01J3/021 ,  G09G3/22 ,  H01J1/304 ,  H01J2201/30446 ,  Y10T428/30

Abstract: A cold cathode electron emission structure (34) includes an amorphous carbon matrix having cesium dispersed therein, with the cesium present in substantially non-crystalline form. A cesium-carbon-oxide layer (36) is positioned on the amorphous carbon matrix, constitutes an electron emission surface and causes the cold cathode electron emission structure (34) to exhibit a lowered surface work function. A display structure (20) including the aforedescribed cold cathode electron emission structure (34) further includes a target electrode (28) including a phosphor (26) and exhibiting a target potential for attraction of electrons. A gate electrode (44) is positioned between the electron emission structure (34) and the target electrode (28) and is biased at a gate potential which attracts electrons, but which is insufficient, in combination with the target potential, to cause emission of a beam of electrons from the electron emission structure (34). A control electrode (40) is coupled to the electron emission structure (34) and selectively applies a low-voltage control potential which, in combination with the gate potential and the target voltage, is sufficient to cause the electron emission structure (34) to emit a beam of electrons towards the target electrode (28). The cesium-carbon-oxide layer (36) in combination with the control electrode (40) further enables the achievement of a long focal length, field effect display structure (200).

Abstract translation: 冷阴极电子发射结构（34）包括其中分散有铯的无定形碳基质，其中铯基本上是非结晶形式。 铯碳氧化物层（36）位于无定形碳基体上，构成电子发射表面，并使冷阴极电子发射结构（34）表现出降低的表面功函数。 包括上述冷阴极电子发射结构（34）的显示结构（20）还包括包含荧光体（26）并具有吸引电子的目标电位的目标电极（28）。 栅电极（44）位于电子发射结构（34）和目标电极（28）之间，并被偏置在栅极电位，其吸引电子但不足以与目标电位相结合，导致发射 来自电子发射结构（34）的电子束。 控制电极（40）耦合到电子发射结构（34）并且选择性地施加低电压控制电位，其结合门电位和目标电压足以使电子发射结构（34） 向目标电极（28）发射电子束。 与控制电极（40）组合的铯碳氧化物层（36）还能够实现长焦距场效应显示结构（200）。

公开(公告)号：WO9703453A3

公开(公告)日：1997-04-03

申请号：PCT/US9610978

申请日：1996-06-27

Applicant: INTEVAC INC ,  UNIV LELAND STANFORD JUNIOR

Inventor： BAUM AARON W ,  COSTELLO KENNETH A

IPC: H01J37/06 ,  G03F7/20 ,  H01J1/34 ,  H01J3/02 ,  H01J27/04 ,  H01J37/073 ,  H01J

CPC classification number: G03F7/70375 ,  H01J3/021 ,  H01J27/04 ,  H01J37/073 ,  H01J2201/3423

Abstract: An electron source includes a negative electron affinity photocathode (10) on a light-transmissive substrate (12) and a light beam generator (50) for directing a light beam through the substrate at the photocathode for exciting electrons into the conduction band. The photocathode has at least one active area for emission of electrons with dimensions of less than about two micrometers. The electron source further includes electron optics (66) for forming the electrons into an electron beam and a vacuum enclosure (14) for maintaining the photocathode at high vacuum. In one embodiment, the active emission area of the photocathode is defined by the light beam that is incident on the photocathode. In another embodiment, the active emission area of the photocathode is predefined by surface modification of the photocathode. The source provides very high brightness from an ultra-small active emission area of the photocathode.

公开(公告)号：WO1997003453A2

公开(公告)日：1997-01-30

申请号：PCT/US1996010978

申请日：1996-06-27

Applicant: INTEVAC, INC. ,  THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

Inventor： INTEVAC, INC. ,  THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ,  BAUM, Aaron, W. ,  COSTELLO, Kenneth, A.

IPC: H01J00/00

CPC classification number: G03F7/70375 ,  H01J3/021 ,  H01J27/04 ,  H01J37/073 ,  H01J2201/3423

Abstract: An electron source includes a negative electron affinity photocathode on a light-transmissive substrate and a light beam generator for directing a light beam through the substrate at the photocathode for exciting electrons into the conduction band. The photocathode has at least one active area for emission of electrons with dimensions of less than about two micrometers. The electron source further includes electron optics for forming the electrons into an electron beam and a vacuum enclosure for maintaining the photocathode at high vacuum. In one embodiment, the active emission area of the photocathode is defined by the light beam that is incident on the photocathode. In another embodiment, the active emission area of the photocathode is predefined by surface modification of the photocathode. The source provides very high brightness from an ultra-small active emission area of the photocathode.

Abstract translation: 电子源包括透光性基板上的负电子亲合性光电阴极和光束发生器，用于将光束引导通过基板在光电阴极处，以激发电子进入导带。 光电阴极具有用于发射尺寸小于约2微米的电子的至少一个有效面积。 电子源还包括用于将电子形成电子束的电子光学器件和用于将光电阴极保持在高真空度的真空外壳。 在一个实施例中，光电阴极的有效发射面积由入射在光电阴极上的光束限定。 在另一个实施方案中，光电阴极的活性发射面积是通过光电阴极的表面改性预先确定的。 光源从光电阴极的超小活性发射区提供非常高的亮度。

公开(公告)号：WO1993004496A1

公开(公告)日：1993-03-04

申请号：PCT/US1992006896

申请日：1992-08-14

Applicant: AMOCO CORPORATION

Inventor： AMOCO CORPORATION ,  BUSTA, Heinz, Hermann

IPC: H01J03/02

CPC classification number: H01J21/10 ,  H01J3/021

Abstract: Methods and apparatus for providing signal modulation or control of collector initialized and sustained field emission in field emitter devices without input circuit loading. A special control gate is used to modulate emission with no resultant steady-state emitter-gate current, thus increasing input resistance. The control gate may be well spaced from the emitter tip and the collector because it is not used to initiate and sustain emission form the emitter. This lowers emitter-gate and collector gate capacitances, thereby increasing input reactance for high frequency input signals. The collector-sustained field emission provides a low output resistance with relatively great collector-emitter spacing to provide high output reactance so that the high frequency response is extended. One practical embodiment of this invention employs an emission element (34) protruding through an annular control gate (42). Applications of this apparatus include display devices, mechanical pressure transducers and electron sources for laser materials.