公开(公告)号：US20060157656A1

公开(公告)日：2006-07-20

申请号：US11035447

申请日：2005-01-14

Applicant: Yoseph Bar-Cohen ,  Stewart Sherrit ,  Yakov Krasik ,  Joshua Felsteiner ,  Xiaoqi Bao

Inventor： Yoseph Bar-Cohen ,  Stewart Sherrit ,  Yakov Krasik ,  Joshua Felsteiner ,  Xiaoqi Bao

IPC: G21G4/00

CPC classification number: H05G2/00 ,  H01J1/30 ,  H01J3/02 ,  H01J3/04 ,  H01J27/02 ,  H01J35/06 ,  H01J2201/306

Abstract: The present invention provides a source of plurality of radiation types using a single source that is made of ferroelectric material in the form of a cathode. The generated radiation types consist of ion and electron beams, X-ray, visible light and ultraviolet radiation. These types allow testing the surface and bulk of the same medium while placed in the same location and are providing confirmation and independent measurements of the material properties. The cathode is made with a continuous electrode on one side and a grid shape electrode on the other. This cathode is supported with fixtures that are used to produce various radiation types. Also, control elements are used to define the shape and directivity of the emitted beam. The present invention eliminates the need for plurality of instruments for obtaining required properties of test materials covering both the surface and the bulk of the test medium. The disclosed source emits multiple types of charged particles and radiation using switchable electromechanical elements. The source performance is enhanced by use of a ferroelectric wafer with a high dielectric constant, and the control of the driving pulse shape. A set of stacks and arrays of multiplexed ferroelectric cathode wafers are used to offer various options in the design of the Ferrosource.

Abstract translation: 本发明提供使用由阴极形式的铁电材料制成的单一源的多种辐射类型的源。 产生的辐射类型由离子和电子束，X射线，可见光和紫外线辐射组成。 这些类型允许在放置在相同位置时测试相同介质的表面和体积，并提供对材料性质的确认和独立测量。 阴极由一侧的连续电极和栅状电极构成。 该阴极由用于产生各种辐射类型的固定装置支撑。 此外，控制元件用于限定发射光束的形状和方向性。 本发明不需要多个仪器来获得覆盖测试介质的表面和体积的测试材料所需的性能。 所公开的源使用可转换的机电元件发射多种类型的带电粒子和辐射。 通过使用具有高介电常数的铁电晶片和驱动脉冲形状的控制来增强源性能。 复合铁电阴极晶片的一组堆叠和阵列被用于在Ferrosource的设计中提供各种选择。

公开(公告)号：US20060043863A1

公开(公告)日：2006-03-02

申请号：US11210279

申请日：2005-08-23

Applicant: Hirofumi Yamaguchi ,  Kei Sato ,  Toshikatsu Kashiwaya

Inventor： Hirofumi Yamaguchi ,  Kei Sato ,  Toshikatsu Kashiwaya

IPC: H01J1/14 ,  H01J1/05

CPC classification number: H01J1/312 ,  B82Y10/00 ,  C04B35/493 ,  C04B35/499 ,  C04B2235/3206 ,  C04B2235/3213 ,  C04B2235/3227 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3255 ,  C04B2235/3256 ,  C04B2235/3258 ,  C04B2235/3267 ,  C04B2235/3279 ,  C04B2235/3298 ,  C04B2235/5445 ,  C04B2235/76 ,  C04B2235/762 ,  C04B2235/765 ,  C04B2235/768 ,  C04B2235/79 ,  H01J2201/306 ,  H01J2201/3125 ,  H01J2329/00

Abstract: Provided is a piezoelectric-film-type electron emitter which enables suppression of reduction of electron emission quantity due to repeated use thereof, and which exhibits high durability. The electron emitter includes a substrate; an emitter section formed of a dielectric material; a first electrode formed on the top surface of the emitter section; and a second electrode formed on the bottom surface of the emitter section. The dielectric material forming the emitter section contains a dielectric composition having an electric-field-induced strain (i.e., percent deformation under application of an electric field of 4 kV/mm, as measured in a direction perpendicular to the electric field) of 0.07% or less.

Abstract translation: 提供一种能够抑制由于其重复使用而导致的电子发射量减少的压电薄膜型电子发射体，其具有高耐久性。 电子发射体包括基板; 由电介质材料形成的发射极部分; 形成在所述发射部的上表面上的第一电极; 以及形成在发射极部分的底表面上的第二电极。 形成发射极部分的电介质材料包含具有电场诱发应变的电介质组合物（即在垂直于电场的方向上测量的4kV / mm的电场施加下的百分比变形）为0.07％ 或更少。

公开(公告)号：US20060022604A1

公开(公告)日：2006-02-02

申请号：US11083052

申请日：2005-03-17

Applicant: Yukihisa Takeuchi ,  Tsutomu Nanataki ,  Iwao Ohwada ,  Takayoshi Akao

Inventor： Yukihisa Takeuchi ,  Tsutomu Nanataki ,  Iwao Ohwada ,  Takayoshi Akao

IPC: G09G3/10

CPC classification number: B82Y10/00 ,  H01J1/312 ,  H01J63/08 ,  H01J2201/306

Abstract: A light source has a rear glass substrate and a front glass substrate having a plate surface disposed in facing relation to a principal surface of the rear glass substrate. The plate surface of the front glass substrate is coated with a phosphor. A two-dimensional array of electron emitters is disposed on the principal surface of the rear glass substrate. A space defined between the rear glass substrate and the front glass substrate is filled with a gas. The gas may be an Hg (mercury) gas or an Xe (xenon) gas.

Abstract translation: 光源具有后玻璃基板和具有与后玻璃基板的主面相对配置的板面的前玻璃基板。 前面玻璃基板的板表面涂有磷光体。 电子发射体的二维阵列设置在后玻璃基板的主表面上。 在后玻璃基板和前玻璃基板之间限定的空间填充有气体。 气体可以是Hg（汞）气体或Xe（氙气）气体。

公开(公告)号：US20060012278A1

公开(公告)日：2006-01-19

申请号：US11180975

申请日：2005-07-13

Applicant: Tsutomu Nanataki ,  Hirofumi Yamaguchi ,  Ritsu Tanaka

Inventor： Tsutomu Nanataki ,  Hirofumi Yamaguchi ,  Ritsu Tanaka

IPC: H01J1/02

CPC classification number: H01J1/312 ,  B82Y10/00 ,  H01J2201/306 ,  H01J2201/3125 ,  H01J2329/00

Abstract: A dielectric device of higher performance is provided. An electron emitter, to which the dielectric device is applied is provided with: an emitter including a dielectric; and an upper electrode and a lower electrode to which drive voltage is applied in order to emit electrons. The emitter is formed by the aerosol deposition method or the sol impregnation method, and the surface roughness of the upper surface thereof is controlled in the range from 0.1 to 3 in Ra.

Abstract translation: 提供了更高性能的电介质器件。 施加电介质器件的电子发射体设置有：包括电介质的发射体; 以及为了发射电子而施加驱动电压的上电极和下电极。 发射体通过气溶胶沉积法或溶胶浸渍法形成，其上表面的表面粗糙度控制在Ra为0.1〜3的范围内。

公开(公告)号：US06885138B1

公开(公告)日：2005-04-26

申请号：US09665122

申请日：2000-09-20

Applicant: In-Kyeong Yoo

Inventor： In-Kyeong Yoo

IPC: H01J1/30 ,  H01J1/312 ,  H01J37/04 ,  H01J37/06 ,  H01J37/073 ,  H01L21/027 ,  H01J1/14 ,  H01J19/06

CPC classification number: B82Y10/00 ,  B82Y40/00 ,  H01J1/312 ,  H01J37/073 ,  H01J37/3174 ,  H01J2201/306

Abstract: A ferroelectric multi-layered emitter used in a semiconductor lithography process includes a lower electrode, a ferroelectric layer, having a top surface with two end portions, which overlies the lower electrode, an insertion electrode formed on a region excluding the two end portions of the top surface of the ferroelectric layer, a dielectric layer, having sides and a top surface with two end portions, which has a predetermined pattern and is formed along the top surface of the ferroelectric layer and the insertion electrode, and a dummy upper electrode formed on a side of the dielectric layer opposite the ferroelectric layer. The ferroelectric emitter of the present invention guarantees uniform electron emission from wide and narrow gaps of a mask layer and in an isolated pattern such as a doughnut shape for ferroelectric switching emission lithography.

Abstract translation: 在半导体光刻工艺中使用的铁电多层发射体包括：下电极，铁电层，具有两个端部的顶表面，覆盖在下电极上;插入电极，形成在除 铁电层的上表面，介电层，具有侧面和具有两个端部的顶表面，其具有预定图案并沿着铁电层和插入电极的顶表面形成，并且虚设上电极形成在 电介质层的与铁电层相对的一侧。 本发明的铁电发射体保证了掩模层的宽和窄间隙的均匀的电子发射以及诸如用于铁电开关发射光刻的环形形状的隔离图案。

公开(公告)号：US06479924B1

公开(公告)日：2002-11-12

申请号：US09636634

申请日：2000-08-11

Applicant: In-Kyeong Yoo

Inventor： In-Kyeong Yoo

IPC: H01J2100

CPC classification number: H01J1/30 ,  H01J2201/306

Abstract: A ferroelectric emitter is described. The ferroelectric emitter of the present invention includes a ferroelectric layer having a first side, an opposing second side, and a top surface, a first and a second electrode formed along the top surface of the ferroelectric layer, and a mask layer which has a predetermined pattern and is formed along the top surface of the ferroelectric layer between the first and second electrodes. When used in ferroelectric switching emission lithography, the ferroelectric emitter of the present invention allows electron emission from a wide or narrow gap of a mask layer and from an isolated pattern such as a doughnut shape while facilitating re-poling in pyroelectric electron emission.

Abstract translation: 描述了铁电发射器。 本发明的铁电体发射体包括具有第一面，相对的第二面以及顶面的强电介质层，沿铁电体层的上表面形成的第一电极和第二电极，以及具有规定的 并且沿着铁电层的顶表面在第一和第二电极之间形成。 当用于铁电开关发射光刻时，本发明的铁电发射体允许从掩模层的宽或窄间隙以及诸如环形形状的隔离图案发射电子，同时促进热电子发射中的再极化。

公开(公告)号：US20020153827A1

公开(公告)日：2002-10-24

申请号：US10027232

申请日：2001-12-20

Applicant: NGK Insulators, Ltd.

Inventor： Yukihisa Takeuchi ,  Tsutomu Nanataki ,  Iwao Ohwada ,  Tomoya Horiuchi

IPC: H01J001/62

CPC classification number: H01J1/316 ,  H01J1/304 ,  H01J31/127 ,  H01J2201/306 ,  H01J2201/3165

Abstract: An electron-emitting element includes an electric field applying portion composed of a dielectric, a first electrode formed on one surface of the electric field applying portion, and a second electrode being formed on the surface and forming a slit in cooperation with the first electrode, and is formed on a substrate.

Abstract translation: 电子发射元件包括由电介质组成的电场施加部分，形成在电场施加部分的一个表面上的第一电极和形成在表面上并与第一电极协作形成狭缝的第二电极， 并形成在基板上。

公开(公告)号：US20010009970A1

公开(公告)日：2001-07-26

申请号：US09783577

申请日：2001-02-12

Applicant: MEDTRONIC AVE, INC.

Inventor： Victor I. Chornenky ,  Michael R. Forman

IPC: A61N005/00

CPC classification number: A61N5/1001 ,  A61N5/1002 ,  A61N2005/1003 ,  H01J35/32 ,  H01J2201/304 ,  H01J2201/306

Abstract: A catheter for emitting radiation is disclosed, comprising a catheter shaft and an x-ray unit attached to the distal end of the catheter shaft. The x-ray unit comprises an anode and a cathode coupled to an insulator to define a vacuum chamber. The cathode is preferably a field emission cathode of graphite or graphite coated with titanium carbide, for example. The anode is preferably tungsten and the insulator is preferably pyrolytic boron nitride. The x-ray unit is preferably coupled to a voltage source through a coaxial cable. The anode is preferably a heavy metal such as tungsten. The cathode may also be a ferroelectric material. The x-ray unit can have a diameter less than about 4 mm and a length less than about 15 mm. Methods of use of the catheter are also disclosed. The catheter of the present invention can be used to irradiate the site of an angioplasty procedure to prevent restenosis. It can also be used to treat other conditions in any vessel, lumen or cavity of the body.

Abstract translation: 公开了一种用于发射辐射的导管，包括导管轴和附接到导管轴的远端的x射线单元。 x射线单元包括阳极和阴极，其耦合到绝缘体以限定真空室。 阴极优选为例如涂覆有碳化钛的石墨或石墨的场致发射阴极。 阳极优选为钨，绝缘体优选为热解氮化硼。 X射线单元优选地通过同轴电缆耦合到电压源。 阳极优选为重金属，例如钨。 阴极也可以是铁电材料。 x射线单元的直径可以小于约4毫米，长度小于约15毫米。 还公开了导管的使用方法。 本发明的导管可用于照射血管成形术程序的部位以防止再狭窄。 它也可以用于治疗身体的任何血管，腔或腔中的其他病症。

公开(公告)号：US5723954A

公开(公告)日：1998-03-03

申请号：US422094

申请日：1995-04-14

Applicant: Stephen E. Sampayan

Inventor： Stephen E. Sampayan

IPC: H01J1/312 ,  H01J11/04

CPC classification number: H01J1/312 ,  B82Y10/00 ,  H01J2201/30457 ,  H01J2201/306

Abstract: A hybrid emitter exploits the electric field created by a rapidly depoled ferroelectric material. Combining the emission properties of a planar thin film diamond emitter with a ferroelectric alleviates the present technological problems associated with both types of emitters and provides a robust, extremely long life, high current density cathode of the type required by emerging microwave power generation, accelerator technology and display applications. This new hybrid emitter is easy to fabricate and not susceptible to the same failures which plague microstructure field emitter technology. Local electrode geometries and electric field are determined independently from those for optimum transport and brightness preservation. Due to the large amount of surface charge created on the ferroelectric, the emitted electrons have significant energy, thus eliminating the requirement for specialized phosphors in emissive flat-panel displays.

Abstract translation: 混合发射器利用由快速去除的铁电材料产生的电场。 将平面薄膜金刚石发射体的发射特性与铁电体组合减轻了与两种类型的发射体相关的当前技术问题，并且提供了出现微波发电所需类型的稳健，极长寿命，高电流密度的阴极，加速器技术 并显示应用程序。 这种新的混合发射器容易制造，并且不易受到与微结构场发射极技术相关的相同故障的影响。 独立地确定局部电极几何形状和电场，以实现最佳的运输和亮度保持。 由于在铁电体上产生大量的表面电荷，所发射的电子具有显着的能量，因此消除了在发射平板显示器中对专用荧光体的要求。

公开(公告)号：US5631664A

公开(公告)日：1997-05-20

申请号：US404132

申请日：1995-03-14

Applicant: Hideo Adachi ,  Takashi Mihara

Inventor： Hideo Adachi ,  Takashi Mihara

IPC: G09G3/22 ,  H01J1/312 ,  H01J31/12 ,  G09G3/30

CPC classification number: B82Y10/00 ,  G09G3/22 ,  H01J1/312 ,  H01J31/127 ,  G09G2300/08 ,  H01J2201/306

Abstract: A plurality of electrical light-emitting surface light source elements are arranged in a matrix form on a semiconductor substrate. Each of the surface light source elements has a ferroelectric capacitor portion and an electrical light-emitting portion. The capacitor portion has a lower electrode formed on the substrate, a ferroelectric thin film formed on the lower electrode, and an upper electrode formed on the thin film with an electron emission hole. The light-emitting portion has a carrier acceleration/multiplication layer formed on the upper electrode by a semiconductor layer, a light-emitting layer formed on the acceleration/multiplication layer, and a transparent electrode formed on the light-emitting layer. A plurality of switching elements are formed on the substrate in correspondence with the surface light source elements. A voltage applied across the upper and lower electrodes of the capacitor portion of a corresponding one of the surface light source elements according to a drive signal selectively supplied to the switching elements is inverted. Electrons emitted from the electron emission hole by polarization reversal generated in the thin film are injected in the light-emitting portion through the acceleration/multiplication layer to cause the light-emitting portion to selectively emit light, thereby obtaining visible light through the transparent electrode.

Abstract translation: 多个电发光面光源元件以矩阵形式布置在半导体衬底上。 每个表面光源元件具有铁电电容器部分和电发光部分。 电容器部分具有形成在基板上的下电极，形成在下电极上的铁电薄膜和形成在具有电子发射孔的薄膜上的上电极。 发光部分具有通过半导体层形成在上电极上的载流子加速/乘积层，形成在加速/倍增层上的发光层和形成在发光层上的透明电极。 多个开关元件与表面光源元件对应地形成在基板上。 根据选择性地提供给开关元件的驱动信号，相应的一个表面光源元件的电容器部分的上下电极施加的电压被反转。 通过在薄膜中产生的极化反转从电子发射孔发射的电子通过加速/倍增层注入到发光部分中，使得发光部分选择性地发光，由此通过透明电极获得可见光。