Patents by Inventor Richard Wu

Richard Wu 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).

  • Patent number: 7754185
    Abstract: The invention relates to high purity MoO2 powder by reduction of ammonium molybdate or molybdenum trioxide using hydrogen as the reducing agent in a rotary or boat furnace. Consolidation of the powder by press/sintering, hot pressing, and/or HIP is used to make discs, slabs, or plates, which are used as sputtering targets. The MoO2 disc, slab, or plate form is sputtered on a substrate using a suitable sputtering method or other physical means to provide a thin film having a desired film thickness. The thin films have properties such as electrical, optical, surface roughness, and uniformity comparable or superior to those of indium-tin oxide (ITO) and zinc-doped ITO in terms of transparency, conductivity, work function, uniformity, and surface roughness.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: July 13, 2010
    Assignee: H.C. Starck Inc.
    Inventors: Lawrence F. McHugh, Prabhat Kumar, David Meendering, Richard Wu, Gerhard Wötting, Richard Nicholson
  • Patent number: 7645494
    Abstract: The invention relates to a method that involves (a) removing graphite from at least one surface of a metal graphite composite material; (b) chemically cleaning or plasma etching the surface of the metal graphite composite material; (c) applying a metal-containing material to the surface of the chemically cleaned or plasma etched metal graphite composite material, and thereby forming an intermediate layer; (d) applying a metal coating on the intermediate layer, and thereby forming a composite material. The invention also relates to a composite material comprising (a) a metal graphite composite substrate having at least one surface that is substantially free of graphite; (b) a metal-containing intermediate layer located on a surface of the substrate; and (c) a metal coating on the intermediate layer.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: January 12, 2010
    Assignee: H.C. Starck Inc.
    Inventors: Richard Wu, James Cornie, Stephen Cornie, Hank Breit, Larry Ballard, Richard R. Malen, Prabhat Kumar, John Shields, Robert Desberg
  • Publication number: 20090186230
    Abstract: Metallic materials consisting essentially of a conductive metal matrix, preferably copper, and a refractory dopant component selected from the group consisting of tantalum, chromium, rhodium, ruthenium, iridium, osmium, platinum, rhenium, niobium, hafnium and mixtures thereof, preferably in an amount of about 0.1 to 6% by weight based on the metallic material, alloys of such materials, sputtering targets containing the same, methods of making such targets, their use in forming thin films and electronic components containing such thin films.
    Type: Application
    Filed: October 23, 2008
    Publication date: July 23, 2009
    Applicant: H.C. Starck Inc.
    Inventors: Shuwei Sun, Mark Gaydos, Richard Wu, Prabhat Kumar
  • Publication number: 20090065747
    Abstract: The present invention is directed to a composition consisting essentially of: a) from about 60 to about 99 mole % of SnO2, and b) from about 1 to about 40 mole % of one or more materials selected from the group consisting of i) Nb2O5, ii) NbO, iii) NbO2, iv) WO2, v) a material selected consisting of a) a mixture of MoO2 and Mo and b) Mo, vi) W, vii) Ta2O5, and viii) mixtures thereof, wherein the mole %s are based on the total product and wherein the sum of components a) and b) is 100. The invention is also directed to the sintered product of such composition, a sputtering target made from the sintered product and a transparent electroconductive film made from the composition.
    Type: Application
    Filed: November 11, 2008
    Publication date: March 12, 2009
    Applicant: H.C. Stack Inc.
    Inventors: Prabhat Kumar, Rong-Chein Richard Wu, Shuwei Sun
  • Publication number: 20080314737
    Abstract: Molybdenum titanium sputter targets are provided. In one aspect, the targets are substantially free of the ?(Ti, Mo) alloy phase. In another aspect, the targets are substantially comprised of single phase ?(Ti, Mo) alloy. In both aspects, particulate emission during sputtering is reduced. Methods of preparing the targets, methods of bonding targets together to produce large area sputter targets, and films produced by the targets, are also provided.
    Type: Application
    Filed: October 16, 2006
    Publication date: December 25, 2008
    Inventors: Mark Gaydos, Prabhat Kumar, Steven A. Miller, Norman G. Mills, Gary Rozak, John Shields, Rong-Chein Richard Wu
  • Patent number: 7452488
    Abstract: The present invention is directed to a composition consisting essentially of: a) from about 60 to about 99 mole % of SnO2, and b) from about 1 to about 40 mole % of one or more materials selected from the group consisting of i) Nb2O5, ii) NbO, iii) NbO2, iv) WO2, v) a material selected consisting of a) a mixture of MoO2 and Mo and b) Mo, vi) W, vii) Ta2O5, and viii) mixtures thereof, wherein the mole % s are based on the total product and wherein the sum of components a) and b) is 100. The invention is also directed to the sintered product of such composition, a sputtering target made from the sintered product and a transparent electroconductive film made from the composition.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: November 18, 2008
    Assignee: H.C. Starck Inc.
    Inventors: Prabhat Kumar, Rong-Chein Richard Wu, Shuwei Sun
  • Publication number: 20080271779
    Abstract: The invention relates to a sputtering target which has a fine uniform equiaxed grain structure of less than 44 microns, no preferred texture orientation as measured by electron back scattered diffraction (“EBSD”) and that displays no grain size banding or texture banding throughout the body of the target. The invention relates a sputtering target with a lenticular or flattened grain structure, no preferred texture orientation as measured by EBSD and that displays no grain size or texture banding throughout the body of the target and where the target has a layered structure incorporating a layer of the sputtering material and at least one additional layer at the backing plate interface, said layer has a coefficient of thermal expansion (“CTE”) value between the CTE of the backing plate and the CTE of the layer of sputtering material. The invention also relates to thin films and their use of using the sputtering target and other applications, such as coatings, solar devices, semiconductor devices etc.
    Type: Application
    Filed: November 8, 2007
    Publication date: November 6, 2008
    Applicant: H.C. Starck Inc.
    Inventors: Steven A. Miller, Olaf Schmidt-Park, Prabhat Kumar, Richard Wu, Shuwei Sun, Stefan Zimmermann
  • Publication number: 20080216602
    Abstract: Disclosed is a process for the reprocessing or production of a sputter target or an X-ray anode wherein a gas flow forms a gas/powder mixture with a powder of a material chosen from the group consisting of niobium, tantalum, tungsten, molybdenum, titanium, zirconium, mixtures of two or more thereof and alloys thereof with at least two thereof or with other metals, the powder has a particle size of 0.5 to 150 ?m, wherein a supersonic speed is imparted to the gas flow and the jet of supersonic speed is directed on to the surface of the object to be reprocessed or produced.
    Type: Application
    Filed: November 5, 2007
    Publication date: September 11, 2008
    Applicant: H. C. Starck GmbH
    Inventors: Stefan Zimmermann, Uwe Papp, Hans Keller, Steven A. Miller, Prabhat Kumar, Mark Gaydos, Rong-Chen Richard Wu
  • Patent number: 7416789
    Abstract: A substrate for semiconductor and integrated circuit components including: a core plate containing a Group VIB metal from the periodic table of the elements and/or an anisotropic material, having a first major surface and a second major surface and a plurality of openings extending, at least partially, from the first major surface to the second major surface; and a Group IB metal from the periodic table of the elements or other high thermally conductive material filling at least a portion of the space encompassed by at least some of the openings; and optionally, a layer containing a Group IB metal from the periodic table or other high thermally conductive material disposed over at least a portion of the first major surface and at least a portion of the second major surface. The substrate can be used in electronic devices, which can also include one or more semiconductor components.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: August 26, 2008
    Assignee: H.C. Starck Inc.
    Inventors: Henry F. Breit, Rong-Chein Richard Wu, Prabhat Kumar
  • Publication number: 20080193798
    Abstract: Molybdenum sputtering targets and sintering characterized as having no or minimal texture banding or through thickness gradient. The molybdenum sputtering targets having a fine, uniform grain size as well as uniform texture, are high purity and can be micro-alloyed to improved performance. The sputtering targets can be round discs, square, rectangular or tubular and can be sputtered to form thin films on substrates. By using a segment-forming method, the size of the sputtering target can be up to 6 m×5.5 m. The thin films can be used in electronic components such as Thin Film Transistor—Liquid Crystal Displays, Plasma Display Panels, Organic Light Emitting Diodes, Inorganic Light Emitting Diode Displays, Field Emitting Displays, solar cells, sensors, semiconductor devices, and gate device for CMOS (complementary metal oxide semiconductor) with tunable work functions.
    Type: Application
    Filed: August 29, 2005
    Publication date: August 14, 2008
    Applicant: H. C. STARCK INC.
    Inventors: Brad Lemon, Joseph Hirt, Timothy Welling, James G. Daily, David Meendering, Gary Rozak, Jerome O'Grady, Peter R. Jepson, Prabhat Kumar, Steven A. Miller, Richard Wu, Davd G. Schwarz
  • Publication number: 20080172961
    Abstract: The invention provides a structure that can be moved between storage and erected in-use forms via the use of one or more connecting members. The connecting member can be provided with at least two angularly disposed arms, at least one of the arms provided to receive an edge of a panel of the structure in the erected form. The other arms may receive an edge of another panel or may be formed integrally with a further panel. The structure can be moved between forms without the need for tools.
    Type: Application
    Filed: October 1, 2007
    Publication date: July 24, 2008
    Inventor: Richard Wu
  • Publication number: 20080176005
    Abstract: The invention relates to a method that involves (a) removing graphite from at least one surface of a metal graphite composite material; (b) chemically cleaning or plasma etching the surface of the metal graphite composite material; (c) applying a metal-containing material to the surface of the chemically cleaned or plasma etched metal graphite composite material, and thereby forming an intermediate layer; (d) applying a metal coating on the intermediate layer, and thereby forming a composite material. The invention also relates to a composite material comprising (a) a metal graphite composite substrate having at least one surface that is substantially free of graphite; (b) a metal-containing intermediate layer located on a surface of the substrate; and (c) a metal coating on the intermediate layer.
    Type: Application
    Filed: March 27, 2008
    Publication date: July 24, 2008
    Inventors: Richard Wu, James Cornie, Stephen Cornie, Hank Breit, Larry Ballard, Richard Malen, Prabhat Kumar, John Shields, Robert Desberg
  • Publication number: 20080171215
    Abstract: The present invention is directed to a process for producing high density, refractory metal products via a press/sintering process. The invention is also directed to a process for producing a sputtering target and to the sputtering target so produced.
    Type: Application
    Filed: January 16, 2007
    Publication date: July 17, 2008
    Inventors: Prabhat Kumar, Charles Wood, Gary Rozak, Steven A. Miller, Glen Zeman, Rong-Chein Richard Wu
  • Patent number: 7368176
    Abstract: The invention relates to a method that involves (a) removing graphite from at least one surface of a metal graphite composite material; (b) chemically cleaning or plasma etching the surface of the metal graphite composite material; (c) applying a metal-containing material to the surface of the chemically cleaned or plasma etched metal graphite composite material, and thereby forming an intermediate layer; (d) applying a metal coating on the intermediate layer, and thereby forming a composite material. The invention also relates to a composite material comprising (a) a metal graphite composite substrate having at least one surface that is substantially free of graphite; (b) a metal-containing intermediate layer located on a surface of the substrate; and (c) a metal coating on the intermediate layer.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: May 6, 2008
    Assignees: H.C. Starck Inc., Metal Matrix Cast Composites, Inc.
    Inventors: Richard Wu, James Cornie, Stephen Cornie, Hank Breit, Larry Ballard, Richard Malen, Prabhat Kumar, John Shields, Robert Desberg
  • Publication number: 20080099731
    Abstract: The present invention is directed to a composition consisting essentially of: a) from about 60 to about 99 mole % of SnO2, and b) from about 1 to about 40 mole % of one or more materials selected from the group consisting of i) Nb2O5, ii) NbO, iii) NbO2, iv) WO2, v) a material selected consisting of a) a mixture of MoO2 and Mo and b) Mo, vi) W, vii) Ta2O5, and viii) mixtures thereof, wherein the mole % s are based on the total product and wherein the sum of components a) and b) is 100. The invention is also directed to the sintered product of such composition, a sputtering target made from the sintered product and a transparent electroconductive film made from the composition.
    Type: Application
    Filed: October 31, 2006
    Publication date: May 1, 2008
    Inventors: Prabhat Kumar, Rong-Chein Richard Wu, Shuwei Sun
  • Publication number: 20080087866
    Abstract: The present invention is directed to a composition consisting essentially of: a) from about 80 to about 99 mole % of TiO2, and b) from about 1 to about 20 mole % of one or more materials selected from the group consisting of i) WO2, ii) Ta2O5, iii) Nb2O5, iv) MoO2, v) Mo, vi) Ta, vii) Nb, viii) W and ix) mixtures thereof, wherein the mole % s are based on the total product and wherein the sum of components a) and b) is 100. The invention is also directed to the sintered product of such composition, a sputtering target made from the sintered product and a transparent electroconductive film made from the composition.
    Type: Application
    Filed: October 13, 2006
    Publication date: April 17, 2008
    Inventors: Rong-Chein Richard Wu, Prabhat Kumar, Shumei Sun
  • Publication number: 20080078268
    Abstract: The present invention is directed to a process for the preparation of a metal powder having a purity at least as high as the starting powder and having an oxygen content of 10 ppm or less comprising heating said metal powder containing oxygen in the form of an oxide, with the total oxygen content being from 50 to 3000 ppm, in an inert atmosphere at a pressure of from 1 bar to 10?7 to a temperature at which the oxide of the metal powder becomes thermodynamically unstable and removing the resulting oxygen via volatilization. The metal powder is preferably selected from the group consisting of tantalum, niobium, molybdenum, hafnium, zirconium, titanium, vanadium, rhenium and tungsten. The invention also relates to the powders produced by the process and the use of such powders in a cold spray process.
    Type: Application
    Filed: October 3, 2006
    Publication date: April 3, 2008
    Inventors: Leonid N. Shekhter, Rong-Chein Richard Wu, Steven A. Miller, Leah F. Haywiser
  • Publication number: 20070280848
    Abstract: Thin tantalum films having novel microstructures are provided. The films have microstructures such as nanocrystalline, single crystal and amorphous. These films provide excellent diffusion barrier properties and are useful in microelectronic devices. Methods of forming the films using pulsed laser deposition (PLD) and molecular beam epitaxy (MBE) deposition methods are also provided, as are microelectronic devices incorporating these films.
    Type: Application
    Filed: March 24, 2005
    Publication date: December 6, 2007
    Inventors: Jagdish Narayan, Prabhat Kumar, Richard Wu
  • Patent number: 7261685
    Abstract: An on-genital erection device for inducing and maintaining the human sexuality are proposed. The on-genital erection device includes an essentially cylindrical elastomeric sleeve surrounding the pre-erection penis. The elastomeric sleeve includes self-sealing air-ports for engaging with an air pump thus forming an expandable and suctioning air tight enclosure of the penis causing its erection. The elastomeric wall can be made of a laminate of at least two layers Li, i=1, 2, . . , M. Each Li includes a surface relief pattern forming a surface relief pattern set that in turn defines a plurality of air paths PTj wherein at least one air path PTk is communicatively connected with the penis surface. Thus, after the plurality of air paths PTj get engaged through their respective air-ports with an external multi-port air pumping device, the desired expandable and suctioning enclosure is formed.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: August 28, 2007
    Inventor: Chang Jy Richard Wu
  • Publication number: 20060234055
    Abstract: The invention relates to a method that involves (a) removing graphite from at least one surface of a metal graphite composite material; (b) chemically cleaning or plasma etching the surface of the metal graphite composite material; (c) applying a metal-containing material to the surface of the chemically cleaned or plasma etched metal graphite composite material, and thereby forming an intermediate layer; (d) applying a metal coating on the intermediate layer, and thereby forming a composite material. The invention also relates to a composite material comprising (a) a metal graphite composite substrate having at least one surface that is substantially free of graphite; (b) a metal-containing intermediate layer located on a surface of the substrate; and (c) a metal coating on the intermediate layer.
    Type: Application
    Filed: January 14, 2004
    Publication date: October 19, 2006
    Inventors: Richard Wu, James Cornie, Stephen Cornie, Hank Breit, Larry Ballard, Richard Malen, Prabhat Kumar, John Shields, Robert Desberg