公开(公告)号：US06524154B2

公开(公告)日：2003-02-25

申请号：US10150238

申请日：2002-05-16

Applicant: Zhongyi Xia ,  Jimmy J. Browning ,  Charles M. Watkins ,  David A. Cathey

Inventor： Zhongyi Xia ,  Jimmy J. Browning ,  Charles M. Watkins ,  David A. Cathey

IPC: H01J9227

CPC classification number: H01J29/085

Abstract: 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.

公开(公告)号：US06515414B1

公开(公告)日：2003-02-04

申请号：US09564356

申请日：2000-05-01

Applicant: David A. Cathey ,  Surjit S. Chadha ,  Behnam Moradi

Inventor： David A. Cathey ,  Surjit S. Chadha ,  Behnam Moradi

IPC: H01J162

CPC classification number: H01J9/025 ,  H01J2329/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06369505B2

公开(公告)日：2002-04-09

申请号：US09769150

申请日：2001-01-23

Applicant: Kevin Tjaden ,  David A. Cathey ,  John K. Lee

Inventor： Kevin Tjaden ,  David A. Cathey ,  John K. Lee

IPC: H01J162

CPC classification number: H01J9/025

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06290562B1

公开(公告)日：2001-09-18

申请号：US09578809

申请日：2000-05-24

Applicant: David H. Wells ,  David A. Cathey

Inventor： David H. Wells ,  David A. Cathey

IPC: H01J902

CPC classification number: H01J9/025

Abstract: 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.

公开(公告)号：US06255769B1

公开(公告)日：2001-07-03

申请号：US09608531

申请日：2000-06-30

Applicant: David A. Cathey ,  Charles M. Watkins

Inventor： David A. Cathey ,  Charles M. Watkins

IPC: H01J936

CPC classification number: H01J31/127 ,  H01J29/92 ,  H01J2329/92

Abstract: 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.

Abstract translation: 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​​。

公开(公告)号：US06184153B2

公开(公告)日：2001-02-06

申请号：US08781831

申请日：1997-01-10

Applicant: Robert T. Rasmussen ,  Surjit S. Chadha ,  David A. Cathey

Inventor： Robert T. Rasmussen ,  Surjit S. Chadha ,  David A. Cathey

IPC: H01L2100

CPC classification number: H01L21/31111 ,  H01L21/02071 ,  Y10S148/051 ,  Y10T428/24802

Abstract: 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.

Abstract translation: 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 。

公开(公告)号：US06081246A

公开(公告)日：2000-06-27

申请号：US746314

申请日：1996-11-12

Applicant: David A. Cathey ,  James J. Cathey

Inventor： David A. Cathey ,  James J. Cathey

IPC: G09G3/22

CPC classification number: G09G3/22 ,  H01J31/127 ,  H01J2329/4695

Abstract: A system and method for making adjustment to pixel boundaries of images in a screen display includes active adjustment of the ratio of the anode voltage and an extraction structure voltage to obtain a desired screen display effect. The viewer can thus actively adjust the image definition to obtain a desired effect at the borders of images on the screen display.

Abstract translation: 用于调整屏幕显示图像的像素边界的系统和方法包括主动调整阳极电压和提取结构电压的比率以获得期望的屏幕显示效果。 因此，观众可以主动地调整图像定义以在屏幕显示器上的图像的边界处获得期望的效果。

公开(公告)号：US6080325A

公开(公告)日：2000-06-27

申请号：US24877

申请日：1998-02-17

Applicant: David A. Cathey ,  Kevin Tjaden

Inventor： David A. Cathey ,  Kevin Tjaden

IPC: H01J9/02 ,  H01J9/00

CPC classification number: H01J9/025 ,  H01J2201/30403

Abstract: A method for fabricating sharp asperities. A substrate is provided which has a mask layer disposed thereon, and a layer of micro-spheres is disposed superjacent the mask layer. The micro-spheres are for patterning the mask layer. Portions of the mask layer are selectively removed, thereby forming circular masks. The substrate is isotropically etched, thereby creating sharp asperities.

Abstract translation: 一种制造尖锐凹凸的方法。 提供了具有设置在其上的掩模层的基板，并且一层微球设置在掩模层的上方。 微球用于图案化掩模层。 选择性地去除掩模层的一部分，从而形成圆形掩模。 基板被各向同性地蚀刻，从而产生尖锐的凹凸。

公开(公告)号：US6060219A

公开(公告)日：2000-05-09

申请号：US83329

申请日：1998-05-21

Applicant: David A. Cathey

Inventor： David A. Cathey

IPC: H01J9/02 ,  G03C5/00

CPC classification number: H01J9/027 ,  H01J2329/00

Abstract: A method of forming a surface conduction electron emitter is as follows. A first electrode and a second electrode are provided on a surface. The first and second electrodes are separated by a gap. A composition comprising particles and carrier material is provided over the surface. A portion of the composition that is over the surface is within the gap, and another portion of the composition that is over the surface is over the electrodes. The composition is exposed to a pattern of radiation to render the portion of the composition within the gap less soluble in a solvent than the portion of the composition that is over the electrodes. The composition is exposed to the solvent to remove an entirety of the portion of the composition that is over the electrodes while leaving the portion of the composition that is within the gap.

Abstract translation: 形成表面传导电子发射体的方法如下。 第一电极和第二电极设置在表面上。 第一和第二电极被间隙隔开。 包含颗粒和载体材料的组合物提供在表面上。 表面上的组合物的一部分在间隙内，组合物的超过表面的另一部分在电极之上。 组合物暴露于辐射图案，使组合物在间隙内的部分比溶于电极上的组合物的部分更不溶于溶剂。 将组合物暴露于溶剂以除去组合物在电极上方的整个部分，同时留下在间隙内的组合物的部分。

公开(公告)号：US6057638A

公开(公告)日：2000-05-02

申请号：US105613

申请日：1998-06-26

Applicant: David A. Cathey ,  Surjit S. Chadha ,  Behnam Moradi

Inventor： David A. Cathey ,  Surjit S. Chadha ,  Behnam Moradi

IPC: H01J1/62 ,  H01J9/02 ,  H01J63/04 ,  H01J1/30

CPC classification number: H01J9/025 ,  H01J2329/00

Abstract: 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.

Abstract translation: 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。