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    Cathode heater and cathode assembly for microwave power tubes
    11.
    发明公开
    Cathode heater and cathode assembly for microwave power tubes 失效
    Kathodenheizer und KathodenvorrichtungfürMikrowellenröhre。

    公开(公告)号：EP0545603A1

    公开(公告)日：1993-06-09

    申请号：EP92310725.4

    申请日：1992-11-24

    Applicant: RAYTHEON COMPANY

    Inventor： Gattuso, Todd R.

    IPC: H01J1/22 ,  H01J23/04 ,  H01J9/08

    CPC classification number: H01J23/04 ,  H01J1/22 ,  H01J9/08 ,  H01J2201/2878

    Abstract: A cathode heater (10) includes a patterned heater conductor (14) embedded between a dielectric ceramic substrate (12) and a dielectric ceramic layer (16). The ceramic (12,16) has a pair of conductors (20,22) over the respective surfaces thereof to provide electrical contact for the heater. To assemble, the substrate (12) and the layer (16) having the conductors, the substrate (12), layer (16) and printed conductive patterns (20,14,22) are fired to provide a composite multi-layer ceramic heater which can be used to heat cathode electrodes in microwave tubes such as travelling wave tubes. Conductive material (24,26) in holes (12',16') in the substrate (12) and layer (16) provides electrical connection between the conductors (20,22) and the patterned heater conductor (14).

    Abstract translation: 阴极加热器（10）包括嵌入在介电陶瓷基板（12）和电介质陶瓷层（16）之间的图案化加热器导体（14）。 陶瓷（12,16）在其相应表面上具有一对导体（20,22），以提供加热器的电接触。 为了组装，将具有导体的基板（12）和具有导体的层（16），基板（12），层（16）和印刷的导电图案（20,14,22）烧制以提供复合多层陶瓷加热器 其可用于加热诸如行波管的微波管中的阴极电极。 在衬底（12）和层（16）中的孔（12'，16'）中的导电材料（24,26）提供导体（20,22）和图案化加热器导体（14）之间的电连接。

    Cathode
    12.
    发明公开
    Cathode 失效
    还原极。

    公开(公告)号：EP0501560A1

    公开(公告)日：1992-09-02

    申请号：EP92200454.4

    申请日：1992-02-18

    Applicant: Philips Electronics N.V.

    Inventor： Heijboer, Willem Leonardus Cornelis Marinus

    IPC: H01J29/04 ,  H01J1/20

    CPC classification number: H01J29/04 ,  H01J1/20 ,  H01J2201/2878 ,  Y10S148/135

    Abstract: A low-power cathode can be obtained by arranging it on a substrate (1), preferably of silicon, which is entirely or partly removed at the location of the emissive structure (11) by means of, for example, anisotropic etching. A method of manufacture provides a layer of etch- stopping silicon nitride or highly doped silicon. Because of its low power, the cathode is particularly suitable for multi-beam applications.

    Abstract translation: 低功率阴极可以通过将其布置在衬底（1）上，优选地通过例如各向异性蚀刻在发光结构（11）的位置处完全或部分地去除硅来获得。 制造方法提供了一层蚀刻停止的氮化硅或高度掺杂的硅。 由于其功率低，阴极特别适用于多光束应用。

    Element
    14.
    发明公开
    Element 失效
    元件。

    公开(公告)号：EP0125859A1

    公开(公告)日：1984-11-21

    申请号：EP84303057.8

    申请日：1984-05-08

    Applicant: SHAYE COMMUNICATIONS LIMITED

    Inventor： Sinclair, Sir Clive Marles ,  Pye, Michael Richard

    IPC: H01J1/14 ,  H01J29/04 ,  H01K7/00 ,  H01K1/02

    CPC classification number: H01J17/49 ,  H01J1/15 ,  H01J2201/2878

    Abstract: An element for use as a thermionic cathode and/ or a light emitting device comprising a semiconductor substrate (1) having a recess (3) therein with a bridge structure extending across the recess and comprising a metal layer (9) on a support layer (5). The bridge structure may be in the form of a narrow linear strip or alternatively it may comprise a broad band of support material with a metal layer in the form of a sinuous strip (21) or (91) supported thereon. The element may be enclosed in an envelope and in a preferred construction the metal layer is only about 5 microns wide but the support layer is mechanically stable up to about 1100 K.
    Preferably the semiconductor substrate is silicon and the support material is silicon dioxide or silicon nitride (15).
    In one construction the element can be used as a thermionic cathode (25) and the element may form part of a thermionic cathode assembly forming part of a display device with a phosphor screen, a grid assembly (27) between the cathode assembly (25) and the screen and an anode for accelerating electrons from the cathode to the screen. Preferably, therefore, cathode ray deflection means are also provided. The elements may be closely packed in matrix form to provide a cathode assembly on a single wafer of semiconductor material (45) to form part of a display device with a screen, accelerating anode, grid assembly 43, etc. The matrix of elements may be addressed by a digital logic circuit and suitable drive circuits and the grid (43) may be provided with an even potential over its surface so that light produced by electrons impinging upon the screen (41) will be produced in a matrix of pixels corresponding to the addressed elements. The intensity of each pixel may be controlled by adjusting the current supplied to the relevant cathode element or by adjusting the potential difference between the grid (49) and cathode assembly (39).
    As an alternative, the matrix may be addressed by applying equal current flowto each element in a row of the matrix in which case each grid element in a corresponding row of the grid would be addressed separately. Alternatively, equal current may be supplied to each cathode element and the grid assembly may be intheform of a matrix of elements to each of which is applied an independent bias potential.
    It is envisaged that the or each element instead of providing a thermionic cathode may each provide a light emitting device and the elements can again be provided in the form of a matrix and the amount of light emitting from each element would be controlled by the current passed to each element.
    In some simple cathode structures, the support layer may be etched away so that the bridge across the recess in the substrate is formed just of a metal layer.

    Abstract translation: 用作热离子阴极的元件和/或发光器件包括其中具有凹槽（3）的半导体衬底（1），其中桥接结构延伸穿过凹部并且在支撑层上包括金属层（9） 5）。 桥结构可以是窄线性条带的形式，或者可选地，其可以包括宽带的支撑材料，其中金属层呈带状的条带（21）或（91）的形式。 该元件可以封装在封套中，并且在优选的结构中，金属层仅为约5微米宽，但是支撑层在高达约1100K下是机械稳定的。优选地，半导体衬底是硅，并且支撑材料是二氧化硅或硅 氮化物（15）。 在一种结构中，元件可以用作热离子阴极（25），并且该元件可以形成一个形成具有荧光屏的显示装置的一部分的热离子阴极组件的一部分，在阴极组件（25）之间的网格组件（27） 屏幕和用于从阴极到屏幕加速电子的阳极。 因此，优选地，还提供阴极射线偏转装置。 元件可以以矩阵形式紧密堆积以在半导体材料（45）的单个晶片上提供阴极组件，以形成具有屏幕，加速阳极，栅格组件43等的显示装置的一部分。元件矩阵可以是 由数字逻辑电路和合适的驱动电路和栅格（49）可以在其表面上被提供均匀的电位，使得由撞击在屏幕（41）上的电子产生的光将产生在对应于屏幕（41）的像素矩阵中 可以通过调节提供给相关阴极元件的电流或通过调节栅极（49）和阴极组件（39）之间的电位差来控制每个像素的强度。 作为替代，可以通过对矩阵的一行中的每个元件应用相等的电流来寻址矩阵，在这种情况下，网格的相应行中的每个网格元素将被单独寻址。 或者，可以向每个阴极元件提供相等的电流，并且栅格组件可以是元件矩阵的形式，其中每一个施加独立的偏置电位。 可以设想，每个元件而不是提供热离子阴极可以各自提供发光器件，并且元件可以再次以矩阵的形式提供，并且从每个元件发射的光的量将由通过的电流控制 到每个元素。 在一些简单的阴极结构中，可以蚀刻掉支撑层，使得穿过衬底中的凹部的桥仅由金属层形成。

    Display device based on indirectly heated thermionic cathodes
    15.
    发明申请
    Display device based on indirectly heated thermionic cathodes 审中-公开
    基于间接加热的热阴极的显示装置

    公开(公告)号：WO9813852A3

    公开(公告)日：1998-08-06

    申请号：PCT/US9716729

    申请日：1997-09-18

    Applicant: BILAN FRANK ALBERT ,  JELINEK JULES JOSEPH

    Inventor： BILAN FRANK ALBERT ,  JELINEK JULES JOSEPH

    IPC: H01J1/24 ,  H01J29/04 ,  H01J31/12

    CPC classification number: H01J1/24 ,  H01J29/04 ,  H01J2201/193 ,  H01J2201/2878 ,  H01J2329/00

    Abstract: A novel self-supporting flat display screen based on thermionic emission of indirectly heated cathode structures (23, 30, 31, 32, 34; 230, 32, 34) is provided utilizing micro-filament heaters (21) that can be interconnected in any predetermined manner. The planar micro-filament (21) construction utilizes Dewer and Dewer-like techniques (10, 11, 12, 13, 14, 15) for controlling the thermal energy emitted and lowering the power consumption of a display device. Several control electrode techniques (42, 52, 33, 133, 142) are also incorporated in the invention to reduce the voltage levels required to control the display and simplify the overall electronic control circuitry needed by the display device. These techniques are combined to provide a high intensity, high contrast flat panel display using low voltage off-the-shelf electronic driver circuitry.

    DISPLAY DEVICE BASED ON INDIRECTLY HEATED THERMIONIC CATHODES
    16.
    发明申请
    DISPLAY DEVICE BASED ON INDIRECTLY HEATED THERMIONIC CATHODES 审中-公开
    基于间接加热THERMIONIC阴极的显示设备

    公开(公告)号：WO1998013852A2

    公开(公告)日：1998-04-02

    申请号：PCT/US1997016729

    申请日：1997-09-18

    Applicant: BILAN, Frank, Albert ,  JELINEK, Jules, Joseph

    IPC: H01J29/04

    CPC classification number: H01J1/24 ,  H01J29/04 ,  H01J2201/193 ,  H01J2201/2878 ,  H01J2329/00

    Abstract: A novel self-supporting flat display screen based on thermionic emission of indirectly heated cathode structures (23, 30, 31, 32, 34; 230, 32, 34) is provided utilizing micro-filament heaters (21) that can be interconnected in any predetermined manner. The planar micro-filament (21) construction utilizes Dewer and Dewer-like techniques (10, 11, 12, 13, 14, 15) for controlling the thermal energy emitted and lowering the power consumption of a display device. Several control electrode techniques (42, 52, 33, 133, 142) are also incorporated in the invention to reduce the voltage levels required to control the display and simplify the overall electronic control circuitry needed by the display device. These techniques are combined to provide a high intensity, high contrast flat panel display using low voltage off-the-shelf electronic driver circuitry.

    Abstract translation: 使用微丝加热器（21）提供基于间接加热的阴极结构（23,30,31,32,34; 230,32,34）的热离子发射的新颖的自支撑平面显示屏，其可以任何 预定方式。 平面微细丝（21）的结构采用了杜瓦和杜瓦式技术（10,11,12,13,14,15）来控制发射的热能并降低显示装置的功耗。 本发明还包括若干控制电极技术（42,52,33,133,142），以减少控制显示器所需的电压水平并简化显示装置所需的整体电子控制电路。 这些技术被组合以提供使用低电压现成电子驱动器电路的高强度，高对比度平板显示器。

    EP0844639A4 -
    17.
    发明公开
    EP0844639A4 - 失效
    EP0844639A4 - Google专利

    公开(公告)号：EP0844639A4

    公开(公告)日：1998-06-10

    申请号：EP97922122

    申请日：1997-05-21

    IPC: H01J1/22 ,  H01J1/24 ,  H01J9/04 ,  H01J29/04 ,  H01J29/48

    CPC classification number: H01J1/22 ,  H01J1/24 ,  H01J9/04 ,  H01J29/04 ,  H01J29/485 ,  H01J2201/2878 ,  H01J2231/1255

    Abstract: A cathode body (27) is provided with an insulating substrate (21) having a pair of facing surfaces and thermal conductivity and a cathode base body (24) is provided on one surface of the substrate (21). On the other surface of the substrate (21), a heating element (25) is formed for heating the base body (24). Electrode terminals (26) are fixed to the electrodes of the heating element (25) with conductive layers (26a) in between. A first grid (30) is fixed to the substrate (21) in a state where the grid (30) is confronted with the base body (24) with a prescribed gap in between.

    Abstract translation: 阴极体（27）具备具有一对对置面并且具有导热性的绝缘基板（21），阴极基体（24）设置在基板（21）的一个面上。 在基板（21）的另一面上形成用于加热基体（24）的加热元件（25）。 电极端子（26）通过其间的导电层（26a）固定在加热元件（25）的电极上。 在格栅（30）与基体（24）隔开规定的间隙的状态下，在基板（21）上固定第一格栅（30）。

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