Patents Assigned to Microelectronics Computer & Technology
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Publication number: 20030043544Abstract: Systems and methods are described for integrated cooling system. A method includes: circulating a liquid inside a flexible multi-layer tape; and transporting heat between a heat source that is coupled to the flexible multi-layer tape and a heat sink that is coupled to the flexible multi-layer tape. A method includes installing a flexible multi-layer tape in an electrical system, wherein the flexible multi-layer tape includes a top layer; an intermediate layer coupled to the top layer; and a bottom layer coupled to the intermediate layer, the intermediate layer defining a closed loop circuit for a circulating fluid. An apparatus includes a flexible multi-layer tape, including: a top layer; an intermediate layer coupled to the top layer; and a bottom layer coupled to the intermediate layer, wherein the intermediate layer defines a closed loop circuit for a circulating fluid.Type: ApplicationFiled: September 5, 2001Publication date: March 6, 2003Applicant: Microelectronic & Computer Technology CorporationInventors: Richard D. Nelson, Anjan Somadder
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Patent number: 6529377Abstract: Systems and methods are described for integrated cooling system. A method includes: circulating a liquid inside a flexible multi-layer tape; and transporting heat between a heat source that is coupled to the flexible multi-layer tape and a heat sink that is coupled to the flexible multi-layer tape. A method includes installing a flexible multi-layer tape in an electrical system, wherein the flexible multi-layer tape includes a top layer; an intermediate, layer coupled to the top layer; and a bottom layer coupled to the intermediate layer, the intermediate layer defining a closed loop circuit for a circulating fluid. An apparatus includes a flexible multi-layer tape, including: a top layer; an intermediate layer coupled to the top layer; and a bottom layer coupled to the intermediate layer, wherein the intermediate layer defines a closed loop circuit for a circulating fluid.Type: GrantFiled: September 5, 2001Date of Patent: March 4, 2003Assignee: Microelectronic & Computer Technology CorporationInventors: Richard D. Nelson, Anjan Somadder
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Patent number: 5830533Abstract: A method of selectively fabricating metallization on a dielectric substrate is disclosed. A seed layer is sputtered on a polymer dielectric, a patterned photoresist mask is disposed over the seed layer, exposed portions of the seed layer are etched, the photoresist is stripped, and copper is deposited without a mask by electroless plating on the unetched seed layer to form well-adhering high density copper lines without exposing the photoresist to the electroless bath.Type: GrantFiled: December 4, 1992Date of Patent: November 3, 1998Assignee: Microelectronics and Computer Technology CorporationInventors: Charles W. C. Lin, Randy L. German
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Patent number: 5703435Abstract: A field emission cathode for use in flat panel displays is disclosed comprising a layer of conductive material and a layer of amorphic diamond film, functioning as a low effective work-function material, deposited over the conductive material to form emission sites. The emission sites each contain at least two sub-regions having differing electron affinities. Use of the cathode to form a computer screen is also disclosed along with the use of the cathode to form a fluorescent light source.Type: GrantFiled: May 23, 1996Date of Patent: December 30, 1997Assignee: Microelectronics & Computer Technology Corp.Inventors: Nalin Kumar, Chenggang Xie
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Patent number: 5697824Abstract: A system and method for producing thin, uniform powder phosphors for field emission display screens features a planarization of the phosphor powder layer. That planarization is accomplished by placing the deposited phosphor layer in an anode plate between two optical flats, which are then mounted within a mechanical press.Type: GrantFiled: June 7, 1995Date of Patent: December 16, 1997Assignees: Microelectronics and Computer Technology Corp., SI Diamond Technology, Inc.Inventors: Chenggang Xie, Donald E. Patterson, Nalin Kumar
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Patent number: 5686791Abstract: A field emission cathode for use in flat panel displays is disclosed comprising a layer of conductive material and a layer of amorphic diamond film, functioning as a low effective work-function material, deposited over the conductive material to form emission sites. The emission sites each contain at least two sub-regions having differing electron affinities. Use of the cathode to form a computer screen is also disclosed along with the use of the cathode to form a fluorescent light source.Type: GrantFiled: June 7, 1995Date of Patent: November 11, 1997Assignee: Microelectronics and Computer Technology Corp.Inventors: Nalin Kumar, Chenggang Xie
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Patent number: 5679043Abstract: A matrix addressable flat panel display includes a flat cathode operable for emitting electrons to an anode when an electric field is produced across the surface of the flat cathode by two electrodes placed on each side of the flat cathode. The flat cathode may consist of a cermet or amorphic diamond or some other combination of a conducting material and an insulating material such as a low effective work function material. The electric field produced causes electrons to hop on the surface of the cathode at the conducting-insulating interfaces. An electric field produced between the anode and the cathode causes these electrons to bombard a phosphor layer on the anode.Type: GrantFiled: June 1, 1995Date of Patent: October 21, 1997Assignees: Microelectronics and Computer Technology Corporation, SI Diamond Technology, Inc.Inventor: Nalin Kumar
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Patent number: 5659224Abstract: A display device for use in conjunction with a computer system includes a cathode having a layer of conductive material and a layer of low-effective work function material deposited over the conductive material wherein the low-effective work function material has an emission surface comprising a plurality of distributed localized electron emission sites. The emission sites may have electrical properties which are discontinuous from each other. The emission surface may be relatively flat.Type: GrantFiled: June 7, 1995Date of Patent: August 19, 1997Assignee: Microelectronics and Computer Technology CorporationInventors: Nalin Kumar, Chenggang Xie
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Patent number: 5652083Abstract: A method is provided for fabricating a display cathode which includes forming a conductive line adjacent a face of a substrate. A region of amorphic diamond is formed adjacent a selected portion of the conductive line.Type: GrantFiled: June 7, 1995Date of Patent: July 29, 1997Assignee: Microelectronics and Computer Technology CorporationInventors: Nalin Kumar, Chenggang Xie
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Patent number: 5612712Abstract: A matrix-addressed diode flat panel display of field emission type is described, utilizing a diode (two terminal) pixel structure. The flat panel display comprises a cathode assembly having a plurality of cathodes, each cathode including a layer of cathode conductive material and a layer of a low effective work-function material deposited over the cathode conductive material and an anode assembly having a plurality of anodes, each anode including a layer of anode conductive material and a layer of cathodoluminescent material deposited over the anode conductive material, the anode assembly located proximate the cathode assembly to thereby receive charged particle emissions from the cathode assembly, the cathodoluminescent material emitting light in response to the charged particle emissions.Type: GrantFiled: June 7, 1995Date of Patent: March 18, 1997Assignee: Microelectronics and Computer Technology CorporationInventors: Nalin Kumar, Chenggang Xie
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Patent number: 5601966Abstract: A method is provided for fabricating a display cathode which includes forming a conductive line adjacent a face of a substrate. A region of amorphic diamond is formed adjacent a selected portion of the conductive line.Type: GrantFiled: June 7, 1995Date of Patent: February 11, 1997Assignee: Microelectronics and Computer Technology CorporationInventors: Nalin Kumar, Chenggang Xie
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Patent number: 5600200Abstract: A field emission cathode for use in flat panel displays comprises a layer of conductive material and a layer of amorphic diamond film, functioning as a low effective work-function material, deposited over the conductive material to form emission sites. The emission sites each contain at least two sub-regions having differing electron affinities. The cathode may be used to form a computer screen or a fluorescent light source.Type: GrantFiled: June 7, 1995Date of Patent: February 4, 1997Assignee: Microelectronics and Computer Technology CorporationInventors: Nalin Kumar, Chenggang Xie
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Patent number: 5574814Abstract: An assembly of an optical interconnect module adaptable for mating with an optical connector having at least one optical fiber and an alignment pin.Type: GrantFiled: January 31, 1995Date of Patent: November 12, 1996Assignee: Microelectronics and Computer Technology CorporationInventors: Kenneth C. Noddings, Robert C. Gardner, Thomas J. Hirsch, Charles L. Spooner, Michael A. Olla, Jason J. Yu
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Patent number: 5551903Abstract: A field emission cathode is provided which includes a substrate and a conductive layer disposed adjacent the substrate. An electrically resistive pillar is disposed adjacent the conductive layer, the resistive pillar having a substantially flat surface spaced from and substantially parallel to the substrate. A layer of diamond is disposed adjacent the flat surface of the resistive pillar.Type: GrantFiled: October 19, 1994Date of Patent: September 3, 1996Assignee: Microelectronics and Computer TechnologyInventors: Nalin Kumar, Chenggang Xie
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Patent number: 5548185Abstract: A flat panel display of a field emission type having a triode (three terminal) structure and useful as a device for displaying visual information is disclosed. The display includes a plurality of corresponding light-emitting anodes and field-emission cathodes, each of the anodes emitting light in response to emission from each of the corresponding cathodes, each of the cathodes including a layer of low work function material having a relatively flat emission surface which includes a plurality of distributed localized electron emission sites and a grid assembly positioned between the corresponding anodes and cathodes to thereby control emission levels to the anodes from the corresponding cathodes. In the preferred embodiment of the invention, the layer of low work function material is amorphic diamond film.Type: GrantFiled: June 2, 1995Date of Patent: August 20, 1996Assignee: Microelectronics and Computer Technology CorporationInventors: Nalin Kumar, Chenggang Xie
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Patent number: 5544018Abstract: Provided is an electrical interconnect cell intermittently spaced across a substrate to form an interconnect device or structure. The interconnect device is fully customizable or programmable upon the upper surface to accommodate various electrical components and connectivity to those components. The electrical interconnect device includes a plurality of intermittently spaced first pairs of upper and lower signal lines interwoven with a plurality of intermittently spaced second pairs of upper and lower signal lines. A bonding pad is arranged between adjacent upper and lower signal line pairs and can be connected thereto with conductive links placed upon the surface layer. Each bonding pad includes one or more pad vias which extend perpendicular to the upper surface to conductive structures arranged in lower layers. Approximately one-half of the array of bonding pads are connected to potential conductors.Type: GrantFiled: April 13, 1994Date of Patent: August 6, 1996Assignee: Microelectronics and Computer Technology CorporationInventors: Scott C. Sommerfeldt, Thomas W. Rudwick, III, Robert F. Miracky
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Patent number: 5543684Abstract: A field emission cathode is provided which includes a substrate and a conductive layer disposed adjacent the substrate. An electrically resistive pillar is disposed adjacent the conductive layer, the resistive pillar having a substantially flat surface spaced from and substantially parallel to the substrate. A layer of diamond is disposed adjacent the surface of the resistive pillar.Type: GrantFiled: June 20, 1994Date of Patent: August 6, 1996Assignee: Microelectronics and Computer Technology CorporationInventors: Nalin Kumar, Chenggang Xie
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Patent number: 5536193Abstract: A field emitter comprising an exposed wide band gap emission area in contact with and protruding from a planar surface of a conductive metal, and a method of making is disclosed. Suitable wide band gap materials (2.5-7.0 electron-volts) include diamond, aluminum-nitride and gallium-nitride; suitable conductive metals include titanium, tungsten, gold and graphite. The method includes disposing the wide band gap material on a substrate, disposing the conductive metal on the wide band gap material, and etching the conductive metal to expose wide band gap emission areas. The emission areas are well suited for large area flat panel displays.Type: GrantFiled: June 23, 1994Date of Patent: July 16, 1996Assignee: Microelectronics and Computer Technology CorporationInventor: Nalin Kumar
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Patent number: 5531880Abstract: A system and method for producing thin, uniform powder phosphors for field emission display screens wherein a planarization of the phosphor powder layer is accomplished by placing the deposited phosphor layer in an anode plate between two optical flats, which are then mounted within a mechanical press.Type: GrantFiled: September 13, 1994Date of Patent: July 2, 1996Assignees: Microelectronics and Computer Technology Corporation, SI Diamond Technology, IncorporatedInventors: Chenggang Xie, Donald E. Patterson, Nalin Kumar
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Patent number: 5528099Abstract: Lateral luminescent field emitter devices for use in flat panel displays and a method of manufacturing are described. The device comprises a flat substrate, an anode disposed on the substrate, and a cathode disposed on the substrate, the cathode providing an electron emission surface capable of emitting electrons laterally across a gap to a major portion of an adjacent surface of the anode.Type: GrantFiled: January 26, 1995Date of Patent: June 18, 1996Assignee: Microelectronics and Computer Technology CorporationInventors: Chenggang Xie, Nalin Kumar