Patents Represented by Attorney Nilay S. Dalal
  • Patent number: 8342383
    Abstract: The present invention relates to a method and apparatus of forming a sputter target assembly having a controlled solder thickness. In particular, the method includes the introduction of a bonding foil, between the backing plate and the sputter target, wherein the bonding foil is an ignitable heterogeneous stratified structure for the propagation of an exothermic reaction.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: January 1, 2013
    Assignee: Praxair Technology, Inc.
    Inventors: Paul S. Gilman, Binu Mathew, Brian J. O'Hara, Thomas J. Hunt, Peter McDonald, Holger J. Koenigsmann
  • Patent number: 8343262
    Abstract: The present invention is directed to the prevention of an exothermic reaction in the gas purifier of an ultra-high purity gas system.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: January 1, 2013
    Assignee: Praxair Technology, Inc.
    Inventors: Thomas Robert Schulte, Michael Henry Hawke, Keith Randall Pace, Thomas John Bergman, Jr., Brian Donald Warrick, Sandro Di Santo, Rick Boyer
  • Patent number: 8322383
    Abstract: This invention relates in part to a method for preparing a pressure vessel for receiving high purity acetylene at elevated pressure. The method involves providing a porous filler-containing pressure vessel, deep cleaning the porous filler-containing pressure vessel, purifying a solvent, and charging the purified solvent into the deep cleaned, porous filler-containing pressure vessel. The pressure vessel is then charged with high purity acetylene for storage, transport and/or delivery of the high purity acetylene. The high purity acetylene may be useful as a source material for depositing carbon and carbon-containing films in semiconductor applications.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: December 4, 2012
    Assignee: Praxair Technology, Inc.
    Inventors: Xuemei Song, Lloyd Anthony Brown, Thomas Thompson, David C. Johnson
  • Patent number: 8318966
    Abstract: This invention relates to organometallic compounds represented by the formula HaM(NR1R2)x(NR3H)y(NH2)z wherein M is a metal or metalloid, each of R1, R2 and R3 is the same or different and is independently a hydrocarbon group or a heteroatom-containing group, a is a value from 0 to 3, x is a value from 0 to 3, y is a value from 0 to 4, z is a value from 0 to 4, and a+x+y+z is equal to the oxidation state of M, provided that at least one of y and z is a value of at least 1, a process for producing the organometallic compounds, and a method for producing a film or coating from organometallic precursor compounds.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: November 27, 2012
    Assignee: Praxair Technology, Inc.
    Inventor: Scott Houston Meiere
  • Patent number: 8308916
    Abstract: This invention relates to a fixture for use in a physical vapor deposition coating operation which comprises a support structure 14 comprising a circular base member 10, a circular top member 11 opposite the circular base member 10, and a plurality of structural members 12 joining said top member 11 to said base member 10; a plurality of panel members 13 aligned in a vertical direction around the outer periphery of said support structure 14 forming a cylinder structure; said panel members 13 including a plurality of apertures for holding workpieces 19 and 35 to which a coating is to be applied; and said apertures positioned on said panel members 13 so that said workpieces 19 and 35 are aligned in a staggered vertical direction. This invention also relates to a method for simultaneously coating a plurality of workpieces 19 and 35, such as gas turbine compressor blades and vanes, with erosion resistant coatings using the fixture of this invention.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: November 13, 2012
    Assignee: Praxair S. T. Technology, Inc.
    Inventors: David Sharp, Albert Feuerstein, Scott Cain
  • Patent number: 8283048
    Abstract: A thermally sprayed coating, coating system and coated article are disclosed. The disclosed embodiments of the thermally sprayed coating, coating system and coated article use a customized ceramic powder comprising ceramic powder particles having an average particle size of about 25 to about 75 microns. In particular, the ceramic powder particles contain from about 70 to about 95 percent by weight of a zirconia-based component, with the balance being an (alumina+silica)-based component and wherein said ceramic powder particles comprise micronized sub-particles of the zirconia-based component and the (alumina+silica)-based component.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: October 9, 2012
    Assignee: Praxair S. T. Technology, Inc.
    Inventor: Thomas Alan Taylor
  • Patent number: 8235364
    Abstract: This invention relates to a vapor or liquid phase reagent dispensing apparatus that may be used for dispensing vapor or liquid phase reagents such as precursors for deposition of materials in the manufacture of semiconductor materials and devices. The vapor phase reagent dispensing apparatus has a single port capable of receiving a carrier gas and dispensing a vapor phase reagent. The liquid phase reagent dispensing apparatus has a single port capable of receiving an inert gas and dispensing a liquid phase reagent.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: August 7, 2012
    Assignee: Praxair Technology, Inc.
    Inventors: Demetrius Sarigiannis, M. Mushtaq Ahmed
  • Patent number: 8221837
    Abstract: This invention relates to organometallic compounds represented by the formula LML? wherein M is a metal or metalloid, L is a substituted or unsubstituted cyclopentadienyl group or cyclopentadienyl-like group, a substituted or unsubstituted pentadienyl group or pentadienyl-like group, or a substituted or unsubstituted pyrrolyl group or pyrrolyl-like group, and L? is a substituted or unsubstituted pyrrolyl group or pyrrolyl-like group, a process for producing the organometallic compounds, and a method for producing a film or coating from the organometallic compounds. The organometallic compounds are useful in semiconductor applications as chemical vapor or atomic layer deposition precursors for film depositions.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: July 17, 2012
    Assignee: Praxair Technology, Inc.
    Inventor: Scott Houston Meiere
  • Patent number: 8206646
    Abstract: Methods for manufacturing sputtering target assemblies and assemblies thereof are provided, particularly targets made of powders. Powders are adhered to a backing plate by use of a vacuum hot press, the powder preferably contacted by non-planar surfaces, and is compressed with at least about 95% density and substantially simultaneously diffusion-bonded to the backing plate.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: June 26, 2012
    Assignee: Praxair Tecnology, Inc.
    Inventors: Chi-Fung Lo, Darryl Draper
  • Patent number: 8123107
    Abstract: The method forms a sputter target assembly by attaching a sputter target to an insert and applying a bond metal layer between the insert and a backing plate. Then pressing the insert and backing plate together forms a solid state bond with the bond metal layer, attaches the insert to the backing plate and forms at least one cooling channel between the insert and the backing plate.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: February 28, 2012
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: Holger J. Koenigsmann, Andrew C. Perry, Thomas J. Hunt, Paul S. Gilman
  • Patent number: 8114479
    Abstract: This invention relates to a vapor or liquid phase reagent dispensing apparatus having a diptube and also a metal seal aligned and in contact with hardened opposing flat surfaces of a top wall member and a protuberance on a side wall member, wherein the hardened opposing flat surfaces of the top wall member and the protuberance have a hardness greater than the hardness of the metal seal. The dispensing apparatus may be used for dispensing of reagents such as precursors for deposition of materials in the manufacture of semiconductor materials and devices.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: February 14, 2012
    Assignee: Praxair Technology, Inc.
    Inventors: Ronald F. Spohn, David Walter Peters
  • Patent number: 8105534
    Abstract: A process and system for purifying an impure gas to produce a purified gas in a gas purification system and protecting the system from damage by a) passing a portion of a first gas stream into a reactor vessel, which exits as a second purified gas stream; b) combining a portion of the second purified gas stream with another portion of the first gas stream to form a combined gas stream; and c) passing the combined gas stream into a sensing device to regulate the flow of the first and second gas streams into the reactor vessel.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: January 31, 2012
    Assignee: Praxair Technology, Inc.
    Inventors: John Fredric Billingham, Jerry Michael Mahl
  • Patent number: 8097100
    Abstract: A physical vapor deposition target for the manufacturing of flat panel displays is provided. The target includes a ternary alloy system having, by atom percent, a first component in an amount of about 90 to 99.98, wherein the first component is aluminum, a second component in an amount of about 0.01 to 2.0, wherein the second component is a rare earth element selected from the group consisting of Nd, Ce, Dy and Gd, and a third component in an amount of about 0.01 to 8.0, wherein the third element is selected from the group consisting of Ni, Co, Mo, Sc, and Hf.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: January 17, 2012
    Assignee: Praxair Technology, Inc.
    Inventors: Jaydeep Sarkar, Chi-Fung Lo, Paul S. Gilman
  • Patent number: 8052507
    Abstract: A system for preparing a microcellular polyurethane material, includes a froth, prepared, for instance, by inert gas frothing a urethane prepolymer, preferably an aliphatic isocyanate polyether prepolymer, in the presence of a surfactant; a filler soluble in a CMP slurry; and a curative, preferably including an aromatic diamine and a triol. To produce the microcellular material, the froth can be combined with the filler, e.g., PVP, followed by curing the resulting mixture. The microcellular material has a low rebound and can dissipate irregular energy and stabilize polishing to yield improved uniformity and less dishing. CMP pads using the microcellular material have pores created by inert gas frothing throughout the pad polymer body and additional surface pores created by dissolution of fillers during polishing, providing flexibility in surface softness and pad stiffness.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: November 8, 2011
    Assignee: Praxair Technology, Inc.
    Inventors: David Picheng Huang, Ming Zhou, Timothy Dale Moser
  • Patent number: 8053072
    Abstract: This invention relates to an article having a reduced porosity and a method for sealing porosity of at least a portion of an outer porous surface of an article, said method comprising (i) applying a sealant solution on the outer porous surface of said article, (ii) infiltrating at least a portion of the outer porous surface with said sealant solution, and (iii) allowing the infiltrated sealant solution to react, thereby forming an infiltrated solid precipitate, said infiltrated solid precipitate sealing the porosity of at least a portion of the outer porous surface of said article. The method is useful, for example, in the protection of integrated circuit manufacturing equipment, internal chamber components, and electrostatic chuck manufacture.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: November 8, 2011
    Assignee: Praxair Technology, Inc.
    Inventor: Brian James Gill
  • Patent number: 7981195
    Abstract: The present invention is directed to the prevention of an exothermic reaction in the gas purifier of an ultra-high purity gas system.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: July 19, 2011
    Assignee: Praxair Technology, Inc.
    Inventors: Thomas Robert Schulte, Michael Henry Hawke, Keith Randall Pace, Thomas John Bergman, Jr., Brian Donald Warrick, Sandro Di Santo, Rick Boyer