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91. 发明授权

US07492086B1 Low work function emitters and method for production of FED's 失效
标题翻译：具有低功函数发射极的场发射显示
公开(公告)号：US07492086B1
公开(公告)日：2009-02-17
申请号：US09489286
申请日：2000-01-21
申请人： David A. Cathey , Surjit S. Chadha , Behnam Moradi
发明人： David A. Cathey , Surjit S. Chadha , Behnam Moradi
IPC分类号： H01J1/02 , H01J63/04
CPC分类号： H01J9/025 , H01J2329/00
摘要： According to one aspect of the invention, a field emission display is provided comprising: an anode; a phosphor screen located on the anode; a cathode; an evacuated space between the anode and the cathode; an emitter located on the cathode opposite the phosphor; wherein the emitter comprises an electropositive element both in a body of the emitter and on a surface of the emitter. According to another aspect of the invention, a process for manufacturing a FED is provided comprising the steps of forming an emitter comprising an electropositive element in the body of the tip; positioning the emitter in opposing relation to a phosphor display screen; creating an evacuated space between the emitter tip and the phosphor display screen; and causing the electropositive element to migrate to an emission surface of the emitter.
摘要翻译：根据本发明的一个方面，提供一种场发射显示器，包括：阳极; 位于阳极上的荧光屏; 阴极阳极和阴极之间的抽空空间; 位于与磷光体相对的阴极上的发射极; 其中所述发射器包括在所述发射体的主体和所述发射极的表面上的正电极元件。根据本发明的另一方面，提供了一种用于制造FED的方法，包括以下步骤：在所述尖端的主体中形成包含正电荷元件的发射器; 将发射器定位成与荧光体显示屏相对的关系; 在发射极尖端和荧光体显示屏之间产生抽空空间; 并使正电荷元件迁移到发射极的发射表面。

92. 发明授权

US07129930B1 Cordless computer keyboard with illuminated keys 有权
标题翻译：带有照明键的无绳电脑键盘
公开(公告)号：US07129930B1
公开(公告)日：2006-10-31
申请号：US09544000
申请日：2000-04-06
申请人： David A. Cathey
发明人： David A. Cathey
IPC分类号： G09G5/00
CPC分类号： G06F3/0202 , H01H13/83 , H01H2219/03 , H01H2219/044 , H01H2219/052 , H01H2219/062 , H01H2219/0621
摘要： A remote keyboard has keys which are illuminated for identification under a dim motherboard. For a first embodiment of the invention, the identifying symbol or symbols on each key cap of the keyboard is formed from luminescent material. Alternatively, the symbol or symbols on each key cap are formed from a translucent material in which tritium is embedded. Tritium, which has a half-life of about 12.5 years, emits low-energy beta particle radiation. The radiation, which is of sufficiently low energy that it may be blocked by a piece of paper, may be rendered innocuous by placing clear plastic radiation shields over each key cap. For a second embodiment of the invention, the key caps themselves are molded from luminescent material, while the symbols are formed from contrasting black or dark-colored non-luminescent material. A third embodiment of the invention utilizes fiber optics to convey light from at least one low-power source, such as a light-emitting diode, to each of the various key caps, each of which is molded from a translucent material. The symbols on the key caps are of a color which contrasts with that of the key caps. Black letters on light colored translucent key caps are the preferred combination. Another embodiment of the present invention for backlighting a keyboard is to use a transparent projector pane positioned beneath translucent or transparent key caps on which identifying symbols are printed. Light from a light source at the edge of the projector pane is transmitted throughout the pane. An aperture beneath each key top projects light up through the key caps, illuminating the symbols.
摘要翻译：远程键盘具有被照亮以在暗淡的主板下识别的按键。对于本发明的第一实施例，键盘的每个键帽上的识别符号或符号由发光材料形成。或者，每个键帽上的符号或符号由其中嵌入有氚的半透明材料形成。氚的半衰期约为12.5年，发射出低能β粒子辐射。通过在每个键帽上放置透明的塑料辐射屏蔽，其可能被一张纸阻塞的足够低的能量的辐射可能变得无害。对于本发明的第二实施例，键帽本身由发光材料模制，而符号由对比黑色或深色非发光材料形成。本发明的第三实施例利用光纤将来自至少一个低功率源（例如发光二极管）的光传送到各个密封帽中的每一个，其中每个由半透明材料模制。键帽上的符号是与键帽的符号形成对比的颜色。浅色半透明键帽上的黑色字母是首选组合。用于背光键盘的本发明的另一实施例是使用位于半透明或透明键帽下方的透明投影仪窗格，其上印有识别符号。来自投影仪窗格边缘的光源的光在整个窗格中传输。每个键顶下方的孔径通过键帽突出，照亮符号。

93. 发明授权

US06825596B1 Electron emitters with dopant gradient 失效
标题翻译：具有掺杂剂梯度的电子发射体
公开(公告)号：US06825596B1
公开(公告)日：2004-11-30
申请号：US08609354
申请日：1996-03-01
申请人： David A. Cathey
发明人： David A. Cathey
IPC分类号： H01J116
CPC分类号： H01J1/3044 , H01J1/3042 , H01J9/025 , H01J2201/30403 , Y10S148/116 , Y10S148/172 , Y10S438/978
摘要： Electron emitters and a method of fabricating emitters which have a concentration gradient of impurities, such that the highest concentration of impurities is at the apex of the emitters, and decreases toward the base of the emitters. The method comprises the steps of doping, patterning, etching, and oxidizing the substrate, thereby forming the emitters having impurity gradients.
摘要翻译：电子发射体和制造具有杂质浓度梯度的发射体的方法，使得最高浓度的杂质位于发射体的顶点，朝向发射体的基底减小。该方法包括掺杂，图案化，蚀刻和氧化衬底的步骤，从而形成具有杂质梯度的发射体。

94. 发明授权

US06735456B2 Power-saving mode for portable communication devices 失效
标题翻译：便携式通信设备的省电模式
公开(公告)号：US06735456B2
公开(公告)日：2004-05-11
申请号：US10307140
申请日：2002-11-27
申请人： David A. Cathey , Kip A. Bedard , David A. Zimlich
发明人： David A. Cathey , Kip A. Bedard , David A. Zimlich
IPC分类号： H04M100
CPC分类号： H04W88/02 , H02J7/0063 , H02J2007/0067 , H04B1/3805 , H04W52/0277 , Y02D70/40
摘要： Apparatus for ensuring that, in a portable, battery-powered communication package incorporating at least two communication devices, such as a combination cellular telephone and a pager, sufficient power is provided for extended operation of the communication device having the lowest continuous power consumption requirements when the device having a higher continuous power consumption rate has consumed a selected portion of the total power initially available to the combined devices.
摘要翻译：用于确保在携带电池供电的通信包中包含诸如组合蜂窝电话和寻呼机的至少两个通信设备的足够功率的设备用于具有最低连续功耗要求的通信设备的扩展操作，具有较高连续功率消耗率的设备消耗了组合设备最初可用的总功率的选定部分。

95. 发明授权

US06524154B2 Focusing electrode and method for field emission displays 失效
公开(公告)号：US06524154B2
公开(公告)日：2003-02-25
申请号：US10150238
申请日：2002-05-16
申请人： Zhongyi Xia , Jimmy J. Browning , Charles M. Watkins , David A. Cathey
发明人： Zhongyi Xia , Jimmy J. Browning , Charles M. Watkins , David A. Cathey
IPC分类号： H01J9227
CPC分类号： H01J29/085
摘要： A high resolution field emission display includes a faceplate and a baseplate. The faceplate includes a transparent viewing layer, a transparent conductive layer formed on the transparent viewing layer and intersecting stripes of light-absorbing, opaque insulating material formed on the transparent conductive layer. The insulating material defines openings less than one hundred microns wide between the intersecting stripes. The faceplate also includes a plurality of localized regions of cathodoluminescent material, each formed in one of the openings. The cathodoluminescent material includes a metal oxide providing reduced resistivity in the cathodoluminescent material. Significantly, the reduced resistivity of the cathodoluminescent material together with the focusing effect of the insulating material provide increased acuity in luminous images formed on the faceplate. The baseplate includes a substrate, an emitter formed on the substrate and a dielectric layer formed on the substrate and having an opening formed about the emitter. The baseplate also includes a conductive extraction grid formed on the dielectric layer and having an opening formed about the emitter.

96. 发明授权

US06515414B1 Low work function emitters and method for production of fed's 有权
标题翻译：低功函数发射器和生产饲料的方法
公开(公告)号：US06515414B1
公开(公告)日：2003-02-04
申请号：US09564356
申请日：2000-05-01
申请人： David A. Cathey , Surjit S. Chadha , Behnam Moradi
发明人： David A. Cathey , Surjit S. Chadha , Behnam Moradi
IPC分类号： H01J162
CPC分类号： H01J9/025 , H01J2329/00
摘要： According to one aspect of the invention, a field emission display is provided comprising: an anode; a phosphor screen located on the anode; a cathode; an evacuated space between the anode and the cathode; an emitter located on the cathode opposite the phosphor; wherein the emitter comprises an electropositive element both in a body of the emitter and on a surface of the emitter. According to another aspect of the invention a process for manufacturing an FED is provided comprising the steps of: forming an emitter comprising an electropositive element in the body of the tip; positioning the emitter in opposing relation to a phosphor display screen; creating an evacuated space between the emitter tip and the phosphor display screen; and causing the electropositive element to migrate to the an emission surface of the emitter.
摘要翻译：根据本发明的一个方面，提供一种场发射显示器，包括：阳极; 位于阳极上的荧光屏; 阴极阳极和阴极之间的抽空空间; 位于与磷光体相对的阴极上的发射极; 其中所述发射器包括在所述发射体的主体和所述发射极的表面上的正电极元件。根据本发明的另一方面，提供了一种用于制造FED的方法，包括以下步骤：在尖端的主体中形成包含正电荷元件的发射器; 将发射器定位成与荧光体显示屏相对的关系; 在发射极尖端和荧光体显示屏之间产生抽空空间; 并使正电荷元件迁移到发射体的发射表面。

97. 发明授权

US06369505B2 Baseplate and a method for manufacturing a baseplate for a field emission display 失效
标题翻译：基板和用于制造用于场发射显示器的基板的方法
公开(公告)号：US06369505B2
公开(公告)日：2002-04-09
申请号：US09769150
申请日：2001-01-23
申请人： Kevin Tjaden , David A. Cathey , John K. Lee
发明人： Kevin Tjaden , David A. Cathey , John K. Lee
IPC分类号： H01J162
CPC分类号： H01J9/025
摘要： The present invention is a baseplate that has a supporting substrate with a primary surface upon which an array of emitters is formed. An insulator layer with a plurality of cavities aligned with respective emitters is disposed on the primary surface, and an extraction grid with a plurality of cavity openings aligned with respective emitters is deposited on the insulator layer. The extraction grid is made from a silicon based layer of material. A current control substrate formed from the silicon based layer of material of the extraction grid is provided such that the current control substrate is electrically isolated from the extraction grid and electrically connected to the emitters. The current control substrate has sufficient resistivity to limit the current from the emitters.
摘要翻译：本发明是一种基板，其具有支撑基板，该基板具有形成有发射体阵列的主表面。具有与相应发射器对准的多个空腔的绝缘体层设置在主表面上，并且具有与各个发射极对准的多个腔开口的引出栅格沉积在绝缘体层上。提取网格由硅基材料层制成。提供由提取栅格的硅基材料层形成的电流控制衬底，使得电流控制衬底与提取栅极电隔离并电连接到发射器。电流控制基板具有足够的电阻率以限制来自发射器的电流。

98. 发明授权

US06290562B1 Method for forming emitters for field emission displays 失效
公开(公告)号：US06290562B1
公开(公告)日：2001-09-18
申请号：US09578809
申请日：2000-05-24
申请人： David H. Wells , David A. Cathey
发明人： David H. Wells , David A. Cathey
IPC分类号： H01J902
CPC分类号： H01J9/025
摘要： A method for creating emitters of a field emission device is provided. First, a hardmask layer is deposited on a substrate used to form emitters. On the hardmask layer, a photoresist layer is deposited. Islands of photoresist are exposed by an exposing energy through holes in a mask layer. The mask layer is removed and the substrate soft-baked in an oven having an atmosphere of basic gas. Following the soft-bake, the substrate is flood exposed, and then developed using conventional means, leaving behind hardened islands of exposed and baked photoresist. The hardmask layer is etched using the hardened islands as an etching barrier, and the substrate etched with a chemical etchant using the etched hardmask layer as an etching barrier. The etching continues until the substrate material below the etched hardmask layer is formed into an array of points of substrate. Once these emitter sites are formed, a field emission display having uniform emitters can be created.

99. 发明授权

US06255769B1 Field emission displays with raised conductive features at bonding locations and methods of forming the raised conductive features 失效
标题翻译：在结合位置具有凸起的导电特征的场发射显示器和形成凸起的导电特征的方法
公开(公告)号：US06255769B1
公开(公告)日：2001-07-03
申请号：US09608531
申请日：2000-06-30
申请人： David A. Cathey , Charles M. Watkins
发明人： David A. Cathey , Charles M. Watkins
IPC分类号： H01J936
CPC分类号： H01J31/127 , H01J29/92 , H01J2329/92
摘要： A field emission display with raised conductive features at bonding locations, and methods of forming the raised conductive features. In accordance with one embodiment of the invention, a plurality of applicators are arranged in a pattern corresponding to a pattern of bonding locations on either a baseplate or a faceplate of a field emission display. The bonding locations and respective applicators are aligned with each other, and then a predetermined quantity of a thick film conductive bonding material is deposited substantially simultaneously through each applicator onto each bonding location. The thick film conductive bonding material forms a conductive pad at each bonding location. The pads of thick film conductive bonding material are subsequently fired to form a raised feature at each bonding location.
摘要翻译：在接合位置具有凸起导电特征的场发射显示器，以及形成凸起的导电特征的方法。根据本发明的一个实施例，多个施加器以对应于场发射显示器的基板或面板上的接合位置的图案的图案布置。接合位置和各个施加器彼此对准，然后将预定量的厚膜导电接合材料基本上同时通过每个涂布器沉积到每个接合位置上。厚膜导电接合材料在每个接合位置形成导电焊盘。随后在每个接合位置处烧制厚膜导电接合材料的焊盘以形成凸起的特征。

100. 发明授权

US06184153B2 Semiconductor material produced by improved etch process which protects metal 失效
标题翻译：通过改进蚀刻工艺生产的保护金属的半导体材料
公开(公告)号：US06184153B2
公开(公告)日：2001-02-06
申请号：US08781831
申请日：1997-01-10
申请人： Robert T. Rasmussen , Surjit S. Chadha , David A. Cathey
发明人： Robert T. Rasmussen , Surjit S. Chadha , David A. Cathey
IPC分类号： H01L2100
CPC分类号： H01L21/31111 , H01L21/02071 , Y10S148/051 , Y10T428/24802
摘要： The present invention is directed to a novel etching process for a semiconductor material which inhibits corrosion of metal comprised of pretreating the material, preferably with a surfactant, and then exposing the material to a mixture comprising salt, a buffered oxide etch, and optionally a surfactant.
摘要翻译：本发明涉及一种用于半导体材料的新型蚀刻工艺，其抑制金属腐蚀，包括预处理材料，优选用表面活性剂，然后将材料暴露于包含盐，缓冲氧化物蚀刻和任选的表面活性剂。

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