Patents by Inventor Andrew T. Hunt

Andrew T. Hunt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20030016117
    Abstract: Resistive materials having resistivities that are axis dependent are provided. Such resistive materials having a resistivity in a first direction and a very different resistivity in an orthogonal direction. These resistive materials are particularly suitable for use as resistors embedded in printed wiring boards.
    Type: Application
    Filed: May 17, 2002
    Publication date: January 23, 2003
    Applicant: Shipley Company, L.L.C.
    Inventors: David D. Senk, John Schemenaur, Wen-Yi Lin, Andrew T. Hunt
  • Patent number: 6500350
    Abstract: A method is provided for forming a patterned layer of resistive material in electrical contact with a layer of electrically conducting material. A three-layer structure is formed which comprises a metal conductive layer, an intermediate layer formed of material which is degradable by a chemical etchant, and a layer of resistive material of sufficient porosity such that the chemical etchant for said intermediate layer may seep through the resistive material and chemically degrade said intermediate layer so that the resistive material may be ablated from said conductive layer wherever the intermediate layer is chemically degraded. A patterned photoresist layer is formed on the resistive material layer. The resistive material layer is exposed to the chemical etchant for said intermediate layer so that the etchant seeps through the porous resistive material layer and degrades the intermediate layer. Then, portions of the resistive material layer are ablated away wherever the intermediate layer has been degraded.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: December 31, 2002
    Assignee: Morton International, Inc.
    Inventors: Andrew T. Hunt, Wen-Yi Lin, Shara S. Shoup, Richard W. Carpenter, Stephen E. Bottomley, Tzyy Jiuan Hwang, Michelle Hendrick
  • Publication number: 20020145845
    Abstract: Thin layer capacitors are formed from a first flexible metal layer, a dielectric layer between about 0.03 and about 2 microns deposited thereon, and a second flexible metal layer deposited on the dielectric layer. The first flexible metal layer may either be a metal foil, such as a copper, aluminum, or nickel foil, or a metal layer deposited on a polymeric support sheet. Depositions of the layers is by or is facilitate by combustion chemical vapor deposition or controlled atmosphere chemical vapor deposition.
    Type: Application
    Filed: March 30, 2001
    Publication date: October 10, 2002
    Applicant: MicroCoating Technologies of
    Inventors: Andrew T. Hunt, Tzyy Jiuan Hwang, Helmut G. Hornis, Wen-Yi Lin
  • Patent number: 6433993
    Abstract: Thin layer capacitors are formed from a first flexible metal layer, a dielectric layer between about 0.03 and about 2 microns deposited thereon, and a second flexible metal layer deposited on the dielectric layer. The first flexible metal layer may either be a metal foil, such as a copper, aluminum, or nickel foil, or a metal layer deposited on a polymeric support sheet. Depositions of the layers is by or is facilitate by combustion chemical vapor deposition or controlled atmosphere chemical vapor deposition.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: August 13, 2002
    Assignee: MicroCoating Technologies, Inc.
    Inventors: Andrew T. Hunt, Wen-Yi Lin, Tzyy Jiuan Hwang, Michelle Hendrick, Helmut G. Hornis
  • Publication number: 20020069826
    Abstract: A continuous feed coater for coating a length of substrate with vaporized or sprayed material, is disclosed. A specific example is a roll-to-roll coater which includes two lower supply rollers for supporting two webs of uncoated material, and two upper take-up rollers for supporting the webs after they are coated. A central web-support forms a plenum that acts as a deposition chimney or chamber by bringing the two webs into close proximity to each other to form two large walls of the plenum. The ends of the webs are sealed using side dams to form the chimney with a rectangular cross section such that the vapor cannot exit from the edges of the material. The vaporized coating constituents to be deposited on the rolled material are directed into the deposition plenum from a coating material supply source located at the bottom of the plenum, and are exhausted through the top of the plenum.
    Type: Application
    Filed: September 15, 2001
    Publication date: June 13, 2002
    Applicant: Shipley Company, L.L.C.
    Inventors: Andrew T. Hunt, Wayne Neilson, Miodrag Oljaca, Edward J. Reardon, Tzyy-Jiuan Jan Hwang, William D. Danielson, James D. Huggins, David E. Bane, Ian H. Campbell, Yibin Xue
  • Patent number: 6403245
    Abstract: The materials and processes for forming fuel cell electrodes can include substrates of codeposited materials including an electrically conductive material, such as graphite, a polymer film, such as a proton-exchange membrane, and a catalytic material, such as platinum. The material may be applied to a polymer film by combustion chemical vapor deposition (CCVD) to produce a layered membrane, or the polymer may be deposited simultaneously with the catalytic coating to produce a membrane wherein the layers are intermingled. Proton exchange membranes prepared by this method are useful in the manufacture of fuel cells.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: June 11, 2002
    Assignee: MicroCoating Technologies, Inc.
    Inventor: Andrew T. Hunt
  • Patent number: 6396387
    Abstract: In thin layer resistors comprising a patch of a layer of resistive material on an insulating substrate and means at spaced apart locations on the patch, the resistive material is formed of 95 to 99.5 wt % of a zero valence metal and between 5 and 0.5 wt % of a dielectric material.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: May 28, 2002
    Assignee: MicroCoating Technologies, Inc.
    Inventors: Andrew T. Hunt, Wen-Yi Lin, Shara S. Shoup
  • Patent number: 6390076
    Abstract: A method for causing a very fine atomization or vaporization of a liquid or liquid-like fluid, where the resulting atomized or vaporized solution is entered into engine, instrument or area for the fluid to be in mixed. The ability of the near supercritical atomizer to produce very fine droplets of a wide range of liquids without any aspirant is very important for number of industrial applications. Especially when the drop size can be so finely controlled. Industries needing such fine atomization include applications such as combustion, engines, scientific equipment, chemical processing, waste disposal control, cleaning, etching, insect control, surface modification, humidification and vaporization. It is important in these applications not to cause a decomposition of the material being atomized.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: May 21, 2002
    Assignee: MicroCoating Technologies, Inc.
    Inventor: Andrew T. Hunt
  • Publication number: 20020058143
    Abstract: Flame produced vapors for combustion chemical vapor deposition are redirected from the direction of the flame by differential atmospheric pressure, such as positive pressure provided by a blower or negative pressure provided by a vacuum. This allows, for example, lower surface temperatures of substrates being coated with flame-produced vapors and coating of interior surfaces.
    Type: Application
    Filed: December 21, 2000
    Publication date: May 16, 2002
    Inventors: Andrew T. Hunt, Girish N. Deshpande, Tzyy-Jiuan Jan Hwang, Nii Sowa Laye, Miodrag Oljaca, Subramaniam Shanmugham, Shara S. Shoup, Trifon Tomov, William J. Dalzell, Aimee Poda, Michelle Hendrick
  • Patent number: 6372364
    Abstract: A thin film product having a nanostructured surface, a laminate product including the thin film and a temporary substrate opposite the nanostructured surface, a laminate product including the thin film and a final substrate attached to the nanostructured surface and a method of producing the thin film products. The thin film is particularly useful in the electronics industry for the production of integrated circuits, printed circuit boards and EMF shielding. The nanostructured surface includes surface features that are mostly smaller than one micron, while the dense portion of the thin film is between 10-1000 nm. The thin film is produced by coating a temporary substrate (such as aluminum foil) with a coating material (such as copper) using any process. One such method is concentrated heat deposition or a combustion, chemical vapor deposition process.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: April 16, 2002
    Assignee: MicroCoating Technologies, Inc.
    Inventors: Andrew T. Hunt, Henry A. Luten, III
  • Patent number: 6368665
    Abstract: An improved chemical vapor deposition apparatus and procedure is disclosed. The technique provides improved shielding of the reaction and deposition zones involved in providing CVD coatings, whereby coatings can be produced, at atmospheric pressure, of materials which are sensitive to components in the atmosphere on substrates which are sensitive to high temperatures and which are too large, or inconvenient, to process in vacuum or similar chambers. The improved technique can be used with various energy sources and is particularly compatible with Combustion Chemical Vapor Deposition (CCVD) techniques.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: April 9, 2002
    Assignee: MicroCoating Technologies, Inc.
    Inventors: Andrew T. Hunt, Subramaniam Shanmugham, William D. Danielson, Henry A. Luten, Tzyy Jiuan Hwang, Girish Deshpande
  • Publication number: 20020015797
    Abstract: A method for chemical vapor deposition using a very fine atomization or vaporization of a reagent containing liquid or liquid-like fluid near its supercritical temperature, where the resulting atomized or vaporized solution is entered into a flame or a plasma torch, and a powder is formed or a coating is deposited onto a substrate. The combustion flame can be stable from 10 torr to multiple atmospheres, and provides the energetic environment in which the reagent contained within the fluid can be reacted to form the desired powder or coating material on a substrate. The plasma torch likewise produces the required energy environment, but, unlike the flame, no oxidizer is needed so materials stable in only very low oxygen partial pressures can be formed.
    Type: Application
    Filed: August 3, 2001
    Publication date: February 7, 2002
    Inventors: Andrew T. Hunt, Helmut G. Hornis
  • Patent number: 6329899
    Abstract: A method is provided for forming a patterned layer of resistive material in electrical contact with a layer of electrically conducting material. A three-layer structure is formed which comprises a metal conductive layer, an intermediate layer formed of material which is degradable by a chemical etchant, and a layer of resistive material of sufficient porosity such that the chemical etchant for said intermediate layer may seep through the resistive material and chemically degrade said intermediate layer so that the resistive material may be ablated from said conductive layer wherever the intermediate layer is chemically degraded. A patterned photoresist layer is formed on the resistive material layer. The resistive material layer is exposed to the chemical etchant for said intermediate layer so that the etchant seeps through the porous resistive material layer and degrades the intermediate layer. Then, portions of the resistive material layer are ablated away wherever the intermediate layer has been degraded.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: December 11, 2001
    Assignee: Microcoating Technologies, Inc.
    Inventors: Andrew T. Hunt, Wen-Yi Lin, Shara S. Shoup, Richard W. Carpenter, Stephen E. Bottomley, Tzyy Jiuan Hwang, Michelle Hendrick
  • Publication number: 20010039919
    Abstract: A method for chemical vapor deposition using a very fine atomization or vaporization of a reagent containing liquid or liquid-like fluid near its supercritical temperature, where the resulting atomized or vaporized solution is entered into a flame or a plasma torch, and a powder is formed or a coating is deposited onto a substrate. The combustion flame can be stable from 10 torr to multiple atmospheres, and provides the energetic environment in which the reagent contained within the fluid can be reacted to form the desired powder or coating material on a substrate. The plasma torch likewise produces the required energy environment, but, unlike the flame, no oxidizer is needed so materials stable in only very low oxygen partial pressures can be formed.
    Type: Application
    Filed: July 3, 2001
    Publication date: November 15, 2001
    Inventors: Andrew T. Hunt, Helmut G. Hornis
  • Publication number: 20010020469
    Abstract: A method for causing a very fine atomization or vaporization of a liquid or liquid-like fluid, where the resulting atomized or vaporized solution is entered into engine, instrument or area for the fluid to be in mixed. The ability of the near supercritical atomizer to produce very fine droplets of a wide range of liquids without any aspirant is very important for number of industrial applications. Especially when the drop size can be so finely controlled. Industries needing such fine atomization include applications such as combustion, engines, scientific equipment, chemical processing, waste disposal control, cleaning, etching, insect control, surface modification, humidification and vaporization. It is important in these applications not to cause a decomposition of the material being atomized.
    Type: Application
    Filed: May 8, 2001
    Publication date: September 13, 2001
    Inventor: Andrew T. Hunt
  • Patent number: 6276347
    Abstract: A method for causing a very fine atomization or vaporization of a liquid or liquid-like fluid, where the resulting atomized or vaporized solution is entered into engine, instrument or area for the fluid to be in mixed. The ability of the near supercritical atomizer to produce very fine droplets of a wide range of liquids without any aspirant is very important for number of industrial applications. Especially when the drop size can be so finely controlled. Industries needing such fine atomization include applications such as combustion, engines, scientific equipment, chemical processing, waste disposal control, cleaning, etching, insect control, surface modification, humidification and vaporization. It is important in these applications not to cause a decomposition of the material being atomized.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: August 21, 2001
    Assignee: Micro Coating Technologies, Inc.
    Inventor: Andrew T. Hunt
  • Publication number: 20010012600
    Abstract: Nanolaminates are formed by alternating deposition, e.g., by combustion chemical vapor deposition (CCVD), layers of resistive material and layers of dielectric material. Outer resistive material layers are patterned to form discrete patches of resistive material. Electrical pathways between opposed patches of resistive material on opposite sides of the laminate act as capacitors. Electrical pathways horizontally through resistive material layers, which may be connected by via plated holes, act as resistors.
    Type: Application
    Filed: February 12, 2001
    Publication date: August 9, 2001
    Applicant: Shipley Company, L.L.C.
    Inventors: Andrew T. Hunt, Wen-Yi Lin, Richard W. Carpenter
  • Patent number: 6270835
    Abstract: Thin layer capacitors are formed from a first flexible metal layer, a dielectric layer between about 0.03 and about 2 microns deposited thereon, and a second flexible metal layer deposited on the dielectric layer. The first flexible metal layer may either be a metal foil, such as a copper, aluminum, or nickel foil, or a metal layer deposited on a polymeric support sheet. Depositions of the layers is by or is facilitate by combustion chemical vapor deposition or controlled atmosphere chemical vapor deposition.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: August 7, 2001
    Assignee: MicroCoating Technologies, Inc.
    Inventors: Andrew T. Hunt, John S. Flanagan, George A. Neuman
  • Patent number: 6210592
    Abstract: Resistors are formed by selective etching from layered thin film material comprising an insulating substrate, a resistive material which is a mixture of a zero valence metal and a dielectric material, and a layer of conductive material.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: April 3, 2001
    Assignee: Morton International, Inc.
    Inventors: Andrew T. Hunt, Wen-Yi Lin, Shara S. Shoup, Richard W. Carpenter
  • Patent number: 6212078
    Abstract: Nanolaminates are formed by alternating deposition, e.g., by combustion chemical vapor deposition (CCVD), layers of resistive material and layers of dielectric material. Outer resistive material layers are patterned to form discrete patches of resistive material. Electrical pathways between opposed patches of resistive material on opposite sides of the laminate act as capacitors. Electrical pathways horizontally through resistive material layers, which may be connected by via plated holes, act as resistors.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: April 3, 2001
    Assignee: MicroCoating Technologies
    Inventors: Andrew T. Hunt, Wen-Yi Lin, Richard W. Carpenter