Patents by Inventor Terry E McMahon
Terry E McMahon 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).
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Patent number: 7798611Abstract: The present invention includes as one embodiment an ink jet printhead having a circuit with plural resistors and a power bus. The printhead includes a metal stack formed within the circuit, which is comprised of a first metal layer and a second metal layer and at least one power via. The power via is formed within the circuit as an interface between the first metal layer and the second metal layer and acts as a separation barrier between conductive portions of the resistors and the power bus.Type: GrantFiled: June 13, 2006Date of Patent: September 21, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: William B. Connors, Terry E McMahon, Donald W Schulte, Keith Moore
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Patent number: 7713456Abstract: Processing a die that has an edge and a substrate upon which a layer of moisture permeable material is disposed. The moisture permeable material extends to the edge of the die. One embodiment comprises interrupting the layer of moisture permeable material to form a gap at a boundary near the edge, thereby to substantially block movement of moisture through the gap of the moisture permeable material.Type: GrantFiled: January 27, 2005Date of Patent: May 11, 2010Assignee: Hewlett-Packard Development Compnay, L.P.Inventors: Simon Dodd, Sean P. McClelland, Colby Van Vooren, Terry E. McMahon, Antonio Cruz-Uribe
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Patent number: 7543917Abstract: A method of forming a semiconductor device, the method including forming a substrate including a first surface having a non-doped region, forming an insulative material over the first surface of the substrate, forming a first conductive material over the first insulative material, forming an opening in the first conductive material that forms a path to the substrate that is substantially free of the first conductive material and the first insulative material, forming a second insulative material over the first conductive material, and forming a second conductive material over the second insulative material, wherein the second conductive material is formed in the opening and contacts the non-doped region of the substrate.Type: GrantFiled: September 29, 2006Date of Patent: June 9, 2009Assignee: Hewlett-Packard Development Comapny, L.P.Inventors: Simon Dodd, S. Jonathan Wang, Dennis W. Tom, Frank R. Bryant, Terry E. McMahon, Richard Todd Miller, Gregory T. Hindman
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Patent number: 7490924Abstract: A drop generator includes a substrate, and a mandrel that is disposed on the substrate for shaping the drop generator chamber. The mandrel is covered by the orifice member and thereafter removed.Type: GrantFiled: June 30, 2006Date of Patent: February 17, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Charles C Haluzak, Kenneth E. Trueba, Terry E McMahon, Donald W Schulte
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Patent number: 7282448Abstract: A method of forming an opening through a substrate having a first side and a second side opposite the first side includes forming spaced etch stops in the first side of the substrate, etching into the substrate from the second side toward the first side to the spaced etch stops, and etching into the substrate between the spaced etch stops from the second side. Etching into the substrate to the spaced etch stops includes forming a first portion of the opening and etching into the substrate between the spaced etch stops includes forming a second portion of the opening.Type: GrantFiled: August 25, 2005Date of Patent: October 16, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Chien-Hua Chen, Donald W. Schulte, Terry E McMahon
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Patent number: 7150516Abstract: A fluid ejection device including: a substrate having a first surface having an non-doped region; a first insulative material disposed on a portion of the first surface, the first insulative material having a plurality of openings forming a path to the first surface; a first conductive material disposed on the first insulative material, the first conductive material being disposed so that the plurality of openings are substantially free of the first conductive material; a second insulative material disposed on the first conductive material and portions of the first insulative material, the second insulative material being disposed so that the plurality of openings are substantial free of the second insulative material and a second conductive material being disposed on second insulative material and within plurality of openings so that some of the second conductive material disposed upon the second insulative material is in electrical contact with the non-doped region on the substrate.Type: GrantFiled: October 29, 2004Date of Patent: December 19, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Simon Dodd, S. Jonathan Wang, Dennis W. Tom, Frank R. Bryant, Terry E. McMahon, Richard Todd Miller, Gregory T. Hindman
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Patent number: 7125731Abstract: A drop generator includes a substrate, and a mandrel that is disposed on the substrate for shaping the drop generator chamber. The mandrel is covered by the orifice member and thereafter removed.Type: GrantFiled: April 11, 2003Date of Patent: October 24, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Charles C Haluzak, Kenneth E. Trueba, Terry E McMahon, Donald W Schulte
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Patent number: 7083265Abstract: The present invention includes as one embodiment a printhead having a circuit with plural resistors and a power bus. The printhead includes a metal stack formed within the circuit, which is comprised of a first metal layer and a second metal layer and at least one power via. The power via is formed within the circuit as an interface between the first metal layer and the second metal layer and acts as a corrosion separation barrier between of the resistors and the power bus.Type: GrantFiled: October 31, 2001Date of Patent: August 1, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: William B. Connors, Terry E McMahon, Donald W Schulte, Keith Moore
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Patent number: 7078855Abstract: A light device includes an electron supply defining an emitter surface. A dielectric tunneling layer is disposed between the electron supply and a cathode layer. The cathode layer has at least partial photon transparency that is substantially uniform across the emitter surface.Type: GrantFiled: January 12, 2005Date of Patent: July 18, 2006Inventors: Zhizhang Chen, Sriram Ramamoorthi, Terry E McMahon, Timothy F. Myers
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Patent number: 6981759Abstract: A method of forming an opening through a substrate having a first side and a second side opposite the first side includes forming spaced etch stops in the first side of the substrate, etching into the substrate from the second side toward the first side to the spaced etch stops, and etching into the substrate between the spaced etch stops from the second side. Etching into the substrate to the spaced etch stops includes forming a first portion of the opening and etching into the substrate between the spaced etch stops includes forming a second portion of the opening.Type: GrantFiled: April 30, 2002Date of Patent: January 3, 2006Assignee: Hewlett-Packard Development Company, LP.Inventors: Chien-Hua Chen, Donald W. Schulte, Terry E. McMahon
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Patent number: 6972882Abstract: A micro-mirror device includes a substrate and a plate spaced from and oriented substantially parallel to the substrate such that the plate and the substrate define a cavity therebetween. A reflective element is interposed between the substrate and the plate, and a liquid having an index of refraction greater than one is disposed in the cavity between at least the reflective element and the plate. As such, the reflective element is adapted to move between a first position and at least one second position.Type: GrantFiled: March 12, 2003Date of Patent: December 6, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: James W. Ring, Brett E. Dahlgren, Terry E. McMahon
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Patent number: 6954297Abstract: A micro-mirror device includes a substrate having a surface, and a plate spaced from and oriented substantially parallel to the surface of the substrate such that the plate and the surface of the substrate define a cavity therebetween. A dielectrophoretic liquid capable of movement when an electrical signal is applied to the micro-mirror device is disposed in the cavity, and a reflective element is interposed between the surface of the substrate and the plate such that the reflective element is adapted to move between a first position and at least one second position.Type: GrantFiled: March 12, 2003Date of Patent: October 11, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Paul F. Reboa, Robert W. Shreeve, Terry E. McMahon
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Patent number: 6885083Abstract: Processing a die that has an edge and a substrate upon which a layer of moisture permeable material is disposed. The moisture permeable material extends to the edge of the die. One embodiment comprises interrupting the layer of moisture permeable material to form a gap at a boundary near the edge, thereby to substantially block movement of moisture through the gap of the moisture permeable material.Type: GrantFiled: October 31, 2002Date of Patent: April 26, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Simon Dodd, Sean P. McClelland, Colby Van Vooren, Terry E. McMahon, Antonio Cruz-Uribe
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Patent number: 6882100Abstract: A light device includes an electron supply defining an emitter surface. A dielectric tunneling layer is disposed between the electron supply and a cathode layer. The cathode layer has at least partial photon transparency that is substantially uniform across the emitter surface.Type: GrantFiled: January 6, 2003Date of Patent: April 19, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Zhizhang Chen, Sriram Ramamoorthi, Terry E McMahon, Timothy F. Myers
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Publication number: 20040087151Abstract: Processing a die that has an edge and a substrate upon which a layer of moisture permeable material is disposed. The moisture permeable material extends to the edge of the die. One embodiment comprises interrupting the layer of moisture permeable material to form a gap at a boundary near the edge, thereby to substantially block movement of moisture through the gap of the moisture permeable material.Type: ApplicationFiled: October 31, 2002Publication date: May 6, 2004Inventors: Simon Dodd, Sean P. McClelland, Colby Van Vooren, Terry E. McMahon, Antonio Cruz-Uribe
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Patent number: 6698868Abstract: A thermal-type drop generator for ejecting droplets of liquid having ultra-small volumes. In one embodiment the drop generator includes a chamber defined in part by an orifice member. The chamber is supported by a rigid substrate. Removable material is used in fabricating the chamber.Type: GrantFiled: October 31, 2001Date of Patent: March 2, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kenneth E. Trueba, Charles C. Haluzak, Terry E. McMahon, Donald W. Schulte
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Publication number: 20030202265Abstract: A micro-mirror device includes a substrate having a surface, and a plate spaced from and oriented substantially parallel to the surface of the substrate such that the plate and the surface of the substrate define a cavity therebetween. A dielectrophoretic liquid capable of movement when an electrical signal is applied to the micro-mirror device is disposed in the cavity, and a reflective element is interposed between the surface of the substrate and the plate such that the reflective element is adapted to move between a first position and at least one second position.Type: ApplicationFiled: March 12, 2003Publication date: October 30, 2003Inventors: Paul F. Reboa, Robert W. Shreeve, Terry E. McMahon
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Publication number: 20030202264Abstract: A micro-mirror device includes a substrate having a surface and a plate spaced from and oriented substantially parallel to the surface of the substrate such that the plate and the surface of the substrate define a cavity therebetween. A dielectric liquid is disposed in the cavity and a reflective element is interposed between the surface of the substrate and the plate. As such, the reflective element is adapted to move between a first position and at least one second position.Type: ApplicationFiled: April 30, 2002Publication date: October 30, 2003Inventors: Timothy L. Weber, George Radominski, Norman L. Johnson, Terry E. McMahon, Donald W. Schulte, Jeremy H. Donaldson, Leonard A. Rosi, Sadiq S. Bengali
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Publication number: 20030202266Abstract: A micro-mirror device includes a substrate and a plate spaced from and oriented substantially parallel to the substrate such that the plate and the substrate define a cavity therebetween. A reflective element is interposed between the substrate and the plate, and a liquid having an index of refraction greater than one is disposed in the cavity between at least the reflective element and the plate. As such, the reflective element is adapted to move between a first position and at least one second position.Type: ApplicationFiled: March 12, 2003Publication date: October 30, 2003Inventors: James W. Ring, Rrett E. Dahlgren, Terry E. McMahon
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Publication number: 20030201245Abstract: A method of forming an opening through a substrate having a first side and a second side opposite the first side includes forming spaced etch stops in the first side of the substrate, etching into the substrate from the second side toward the first side to the spaced etch stops, and etching into the substrate between the spaced etch stops from the second side. Etching into the substrate to the spaced etch stops includes forming a first portion of the opening and etching into the substrate between the spaced etch stops includes forming a second portion of the opening.Type: ApplicationFiled: April 30, 2002Publication date: October 30, 2003Inventors: Chien-Hua Chen, Donald W. Schulte, Terry E. McMahon