Metal And Chalcogen Containing Coating (e.g., Metal Oxide, Metal Sulfide, Metal Telluride, Etc.) Patents (Class 427/255.31)
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Publication number: 20090155491Abstract: A film-forming method includes the steps of introducing oxygen radicals and an organic raw material gas containing a metal element into a vacuum container, and reacting the organic raw material gas with the oxygen radicals, thereby forming a metal oxide film on a surface of a substrate disposed in the vacuum container.Type: ApplicationFiled: July 2, 2008Publication date: June 18, 2009Applicant: ANELVA CorporationInventors: Akira Kumagai, Hong Zhang
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Patent number: 7544388Abstract: The invention includes methods of utilizing supercritical fluids to introduce precursors into reaction chambers. In some aspects, a supercritical fluid is utilized to introduce at least one precursor into a chamber during ALD, and in particular aspects the supercritical fluid is utilized to introduce multiple precursors into the reaction chamber during ALD. The invention can be utilized to form any of various materials, including metal-containing materials, such as, for example, metal oxides, metal nitrides, and materials consisting of metal. Metal oxides can be formed by utilizing a supercritical fluid can be utilized to introduce a metal-containing precursor into reaction chamber, with the precursor then forming a metal-containing layer over a surface of a substrate. Subsequently, the metal-containing layer can be reacted with oxygen to convert at least some of the metal within the layer to metal oxide.Type: GrantFiled: April 13, 2006Date of Patent: June 9, 2009Assignee: Micron Technology, Inc.Inventors: Demetrius Sarigiannis, Garo J. Derderian, Cem Basceri
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Publication number: 20090136685Abstract: Metal-containing complexes of a tridentate beta-ketoiminate, one embodiment of which is represented by the structure: wherein M is a metal such as calcium, strontium, barium, scandium, yttrium, lanthanum, titanium, zirconium, vanadium, tungsten, manganese, cobalt, iron, nickel, ruthenium, zinc, copper, palladium, platinum, iridium, rhenium, osmium; R1 is selected from the group consisting of alkyl, alkoxyalkyl, fluoroalkyl, cycloaliphatic, and aryl, having 1 to 10 carbon atoms; R2 is selected from the group consisting of hydrogen, alkyl, alkoxy, cycloaliphatic, and aryl; R3 is linear or branched selected from the group consisting of alkyl, alkoxyalkyl, fluoroalkyl, cycloaliphatic, and aryl; R4 is a branched alkylene bridge with at least one chiral center; R5-6 are individually linear or branched selected from the group consisting of alkyl, fluoroalkyl, cycloaliphatic, aryl, and can be connected to form a ring containing carbon, oxygen, or nitrogen atoms; n is an integer equal to the valence of the metalType: ApplicationFiled: October 3, 2008Publication date: May 28, 2009Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Xinjian Lei, Daniel P. Spence, Hansong Cheng
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Patent number: 7537801Abstract: In certain example embodiments, a coated article includes a zirconium nitride inclusive layer before heat treatment (HT). The coated article is heat treated sufficiently to cause the zirconium nitride based layer to transform into a zirconium oxide based layer that is scratch resistant and/or durable. In certain example embodiments, the zirconium nitride and/or zirconium oxide may be doped with F and/or C.Type: GrantFiled: June 24, 2005Date of Patent: May 26, 2009Assignee: Guardian Industries Corp.Inventors: Vijayen S. Veerasamy, Fabio Reis de Almeida, Michael Wiegner
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Patent number: 7537804Abstract: In some embodiments, the invention may include utilization of at least one iteration of an ALD pulse sequence that has the pulse subsets M2-M1-R- and M1-(R-M2-)x: where x is at least 2; where M1 is a first metal-containing precursor comprising a first metal, M2 is a second metal-containing precursor comprising a second metal different from the first metal, and R is a reactant which reacts with one or both of the first and second metals. The ALD pulse sequence forms material over a substrate, and such material includes the first and second metals. The hyphen between pulses means that the second pulse directly follows the first pulse, with the term “directly follows” indicating that the second pulse either immediately follows the first pulse or that only a purge separates the first and second pulses.Type: GrantFiled: April 28, 2006Date of Patent: May 26, 2009Assignee: Micron Technology, Inc.Inventors: Cancheepuram V. Srividya, Noel Rocklein, John Vernon, Jeff Nelson, F. Daniel Gealy, David Korn
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Publication number: 20090120800Abstract: The present invention relates to a silver complex obtained by reacting at least one silver compound represented by the formula 2 below with at least one ammonium carbamate compound or ammonium carbonate compound represented by the formula 3, 4 or 5 below:Type: ApplicationFiled: February 7, 2006Publication date: May 14, 2009Applicant: INKTEC CO., LTD.Inventors: Kwang-Choon Chung, Hyun-Nam Cho, Myoung-Seon Gong, Yi-Sup Han, Jeong-Bin Park, Dong-Hun Nam, Seong-Yong Uhm, Young-Kwan Seo
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Patent number: 7531213Abstract: A method for making a coated cutting tool insert by depositing by CVD, onto a cemented carbide, titanium based or ceramic substrate a hard layer system, having a total thickness of from about 2 to about 50 ?m, comprising at least one layer selected from titanium carbide, titanium nitride, titanium carbonitride, titanium carboxide and aluminum oxide, and an outer, from about 1 to about 15 ?m thick, aluminum oxide layer or (Al2O3+ZrO2)*N multilayer, a penultimate outermost layer of TiOx, where x ranges from about 1 to about 2, and an outermost, from about 0.3 to about 2 ?m thick, TiCxNyOz layer, where x+y+z=1, x?0, y?0, and z?0, followed by a post-treatment removing at least said outermost layer on the edge-line and on the rake face.Type: GrantFiled: April 13, 2006Date of Patent: May 12, 2009Assignee: Sandvik Intellectual Property ABInventor: Carl Björmander
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Patent number: 7531214Abstract: A method of depositing a crystalline ?-Al2O3 layer onto a cutting tool insert by Chemical Vapor Deposition at a temperature of from about 625 to about 800° C. includes the following steps: depositing a from about 0.1 to about 1.5 ?m layer of TiCxNyOz where x+y+z>=1 and z>0, preferably z>0.2; treating said layer at 625-1000° C. in a gas mixture containing from about 0.5 to about 3 vol-% O2, preferably as CO2+H2, or O2+H2, for a short period of time from about 0.5 to about 4 min, optionally in the presence of from about 0.5 to about 6 vol-% HCl; and depositing said Al2O3-layer by bringing said treated layer into contact with a gas mixture containing from about 2 to about 10 vol-% of AlC3, from about 16 to about 40 vol-% of CO2, in H2 and 0.8-2 vol-% of a sulphur-containing agent, preferably H2S, at a process pressure of from about 40 to about 300 mbar. Also included is a cutting tool insert with a coating including at least one ?-Al2O3-layer.Type: GrantFiled: September 28, 2006Date of Patent: May 12, 2009Assignee: Sandvik Intellectual Property AktiebolagInventor: Bjorn Ljungberg
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Patent number: 7531212Abstract: The present invention provides a process for producing an alumina coating comprised mainly of ? crystal structure on a base material.Type: GrantFiled: August 8, 2003Date of Patent: May 12, 2009Assignee: Kobe Steel, Ltd.Inventors: Toshimitsu Kohara, Yoshimitsu Ikari, Hiroshi Tamagaki
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Publication number: 20090110918Abstract: The invention relates to a substrate comprising at least one photocatalytic compound active under the conditions of illuminating an interior of a building or transport vehicle, intended to neutralize the microorganisms with which it comes into contact, and also to its preparation processes and its uses as glazing or another substrate for disinfection, filtration, ventilation, etc.Type: ApplicationFiled: April 10, 2006Publication date: April 30, 2009Applicant: Saint-Gobain Glass FranceInventors: Catherine Jacquiod, Lethicia Gueneau, Sophie Vanpoulle, Ronan Garrec, Jean-Gerard Leconte
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Patent number: 7514119Abstract: A unique combination of solution stabilization and delivery technologies with special ALD operation is provided. A wide range of low volatility solid ALD precursors dissolved in solvents are used. Unstable solutes may be stabilized in solution and all of the solutions may be delivered at room temperature. After the solutions are vaporized, the vapor phase precursors and solvents are pulsed into a deposition chamber to assure true ALD film growth.Type: GrantFiled: April 10, 2006Date of Patent: April 7, 2009Assignee: Linde, Inc.Inventors: Ce Ma, Qing Min Wang, Patrick J. Helly, Richard Hogle
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Patent number: 7498059Abstract: The invention relates to a method and apparatus for growing a thin film onto a substrate, in which method a substrate placed in a reaction space (21) is subjected to alternately repeated surface reactions of at least two vapor-phase reactants for the purpose of forming a thin film. According to the method, said reactants are fed in the form of vapor-phase pulses repeatedly and alternately, each reactant separately from its own source, into said reaction space (21), and said vapor-phase reactants are brought to react with the surface of the substrate for the purpose of forming a solid-state thin film compound on said substrate. According to the invention, the gas volume of said reaction space is evacuated by means of a vacuum pump essentially totally between two successive vapor-phase reactant pulses.Type: GrantFiled: December 3, 2007Date of Patent: March 3, 2009Assignee: ASM America, Inc.Inventors: Tuomo Suntola, Sven Lindfors
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Patent number: 7482037Abstract: A method of forming a metal containing layer on a substrate, particularly a semiconductor substrate or substrate assembly for use in manufacturing a semiconductor or memory device structure, using one or more precursor compounds that include niobium and/or vanadium and using an atomic layer deposition process including a plurality of deposition cycles.Type: GrantFiled: August 20, 2004Date of Patent: January 27, 2009Assignee: Micron Technology, Inc.Inventors: Garo J. Derderian, Donald L. Westmoreland, Stefan Uhlenbrock
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Publication number: 20090022997Abstract: A variety of new n-type TCO films including films with dopants having ionic sizes that approximate those of the metal oxide host material, films with stabilized rutile MO2, and films with AxMOy. The films are deposited by APCVD.Type: ApplicationFiled: December 30, 2004Publication date: January 22, 2009Inventors: David A. Russo, Jeffery L. Stricker, Ryan C. Smith, Thomas D. Culp, Roman Y. Korotkov, Gary S. Silverman
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Patent number: 7476420Abstract: A process for producing metal oxide thin films on a substrate by the ALD method comprises the steps of bonding no more than about a molecular monolayer of a gaseous metal compound to a growth substrate, and converting the bonded metal compound to metal oxide. The bonded metal compound is converted to metal oxide by contacting it with a reactive vapor source of oxygen other than water, and the substrate is kept at a temperature of less than 190° C. during the growth process. By means of the invention it is possible to produce films of good quality at low temperatures. The dielectric thin films having a dense structure can be used for passivating surfaces that do not endure high temperatures. Such surfaces include, for example, organic films in integrated circuits and polymer films such as in organic electroluminescent displays and organic solar cells. Further, when a water-free oxygen source is used, surfaces that are sensitive to water can be passivated.Type: GrantFiled: November 19, 2004Date of Patent: January 13, 2009Assignee: ASM International N.V.Inventors: Jarmo Skarp, Mervi Linnermo, Timo Asikainen
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Publication number: 20080299313Abstract: A film forming apparatus that forms a film on an inner wall of a tubular body by a chemical vapor deposition method is provided. The film forming apparatus includes: a source material storage section; a process gas generation section that forms process gas containing source material supplied from the source material storage section; a film forming section that forms a film on an inner wall of the tubular body; a process gas supply tube that connects to the tubular body and supplies the process gas from the process gas generation section to the tubular body; and a process gas discharge tube that connects to the tubular body and discharges the process gas that has passed through the tubular body, wherein the film forming section includes a retaining section that holds the tubular body.Type: ApplicationFiled: May 2, 2008Publication date: December 4, 2008Applicant: Seiko Epson CorporationInventor: Takeshi Kijima
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Publication number: 20080299312Abstract: There is provided a raw material solution for MOCVD method having a high film forming rate, and a method for manufacturing composite oxide film containing Hf-Si using the raw material solution. There is also provided a method for manufacturing composite oxide film containing Hf-Si by using the raw material solution for MOCVD method providing an excellent adhesivity with a substrate. The raw material solution for MOCVD method of the invention includes an organic Si compound represented by the formula (R1R2N)nSiH(4-n) which is mixed in a predetermined ratio. A mixing ratio of the organic Si compound and the organic Hf compound is within the range of 0.001 to 0.5 wt % in a weight ratio (organic Hf compound/organic Si compound). The raw material solution for MOCVD method of the invention is prepared by mixing the compounds in a ratio within the above-mentioned range, dissolving the organic Hf compound in the organic Si compound, and heating this solution at a temperature of 20 to 100 ° C.Type: ApplicationFiled: September 2, 2005Publication date: December 4, 2008Inventors: Atsushi Itsuki, Akio Yanagisawa, Nobuyuki Soyama
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Publication number: 20080299288Abstract: A method of providing a durable protective coating structure which comprises at least three layers, and which is stable at temperatures in excess of 400° C., where the method includes vapor depositing a first layer deposited on a substrate, wherein the first layer is a metal oxide adhesion layer selected from the group consisting of an oxide of a Group IIIA metal element, a Group IVB metal element, a Group VB metal element, and combinations thereof; vapor depositing a second layer upon said first layer, wherein said second layer includes a silicon-containing layer selected from the group consisting of silicon oxide, silicon nitride, and silicon oxynitride; and vapor depositing a third layer upon said second layer, wherein said third layer is a functional organic-comprising layer. Numerous articles useful in electronics, MEMS, nanoimprinting lithography, and biotechnology applications can be fabricated using the method.Type: ApplicationFiled: May 5, 2008Publication date: December 4, 2008Inventors: Boris Kobrin, Dangaria Nikunji Hirji, Romuald Nowak, Michael T. Grimes
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Publication number: 20080282970Abstract: Precursors suitable for chemical vapour deposition, especially ALD, of hafnium oxide or zirconium oxide, have the general formula: (R1Cp)2MR2 wherein Cp represents a cyclopentadienyl ligand, R1 is H or a substituting alkyl group, alkoxy group or amido group of the Cp ligand, R2 is an alkyl group, an alkoxy group or an amido group and M is hafnium or zirconium.Type: ApplicationFiled: June 8, 2006Publication date: November 20, 2008Inventors: Peter Nicholas Heys, Paul Williams, Fuquan Song
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Patent number: 7452569Abstract: In a method of manufacturing a metal wiring, an organic aluminum precursor that includes aluminum as a central metal is applied to a substrate. The organic aluminum precursor applied to the substrate is thermally decomposed to form aluminum. The aluminum is deposited on the substrate to form an aluminum wiring having a low resistance. The organic aluminum precursor includes a chemical structure in accordance with one of the chemical formulae: wherein R1, R2, R3, R4 and R5 are independently H or a C1-C5 alkyl functional group, n is an integer of 1 to 5, x is 1 or 2, and y is 0 or 1, or wherein R1, R2, R3, R4 R5, R6, R7 and R8 are independently H or a C1-C5 alkyl functional group, and Y is boron.Type: GrantFiled: September 21, 2006Date of Patent: November 18, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Jung-Ho Lee, Jung-Sik Choi, Jun-Hyun Cho, Youn-Joung Cho, Tae-Sung Kim, Mi-Ae Kim, Kyoo-Chul Cho
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Patent number: 7438949Abstract: An exemplary apparatus and method of forming a ruthenium tetroxide containing gas to form a ruthenium containing layer on a surface of a substrate is described herein. The method and apparatus described herein may be especially useful for fabricating electronic devices that are formed on a surface of the substrate or wafer. Generally, the method includes exposing a surface of a substrate to a ruthenium tetroxide vapor to form a catalytic layer on the surface of a substrate and then filling the device structures by an electroless, electroplating, physical vapor deposition (PVD), chemical vapor deposition (CVD), plasma enhanced CVD (PECVD), atomic layer deposition (ALD) or plasma enhanced ALD (PE-ALD) processes. In one embodiment, the ruthenium containing layer is formed on a surface of a substrate by creating ruthenium tetroxide in an external vessel and then delivering the generated ruthenium tetroxide gas to a surface of a temperature controlled substrate positioned in a processing chamber.Type: GrantFiled: September 15, 2005Date of Patent: October 21, 2008Assignee: Applied Materials, Inc.Inventor: Timothy W. Weidman
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Publication number: 20080254232Abstract: An interconnect structure for integrated circuits incorporates a layer of cobalt nitride that facilitates the nucleation, growth and adhesion of copper wires. The cobalt nitride may deposited on a refractory metal nitride or carbide layer, such as tungsten nitride or tantalum nitride, that serves as a diffusion barrier for copper and also increases the adhesion between the cobalt nitride and the underlying insulator. The cobalt nitride may be formed by chemical vapor deposition from a novel cobalt amidinate precursor. Copper layers deposited on the cobalt nitride show high electrical conductivity and can serve as seed layers for electrochemical deposition of copper conductors for microelectronics.Type: ApplicationFiled: April 9, 2008Publication date: October 16, 2008Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGEInventors: Roy G. GORDON, Hoon KIM, Harish BHANDARI
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Patent number: 7431966Abstract: The invention includes atomic layer deposition methods of depositing an oxide on a substrate. In one implementation, a substrate is positioned within a deposition chamber. A first species is chemisorbed onto the substrate to form a first species monolayer within the deposition chamber from a gaseous precursor. The chemisorbed first species is contacted with remote plasma oxygen derived at least in part from at least one of O2 and O3 and with remote plasma nitrogen effective to react with the first species to form a monolayer comprising an oxide of a component of the first species monolayer. The chemisorbing and the contacting with remote plasma oxygen and with remote plasma nitrogen are successively repeated effective to form porous oxide on the substrate. Other aspects and implementations are contemplated.Type: GrantFiled: December 9, 2003Date of Patent: October 7, 2008Assignee: Micron Technology, Inc.Inventors: Garo J. Derderian, Shuang Meng, Danny Dynka
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Publication number: 20080242111Abstract: A method of depositing oxide materials on a substrate is provided. A deposition chamber holds the substrate, where the substrate is at a specified temperature, and the chamber has a chamber pressure and wall temperature. A precursor molecule containing a cation material atom is provided to the chamber, where the precursor has a line temperature and a source temperature. An oxidant is provided to the chamber, where the oxidant has a source flow rate. Water is provided to the chamber, where the water has a source temperature. By alternating precursor pulses, the water and the oxidant are integrated with purges of the chamber to provide low contamination levels and high growth rates of oxide material on the substrate, where the pulses and the purge have durations and flow rates. A repeatable growth cycle includes pulsing the precursor, purging the chamber, pulsing the water, pulsing the oxidant, and purging the chamber.Type: ApplicationFiled: February 14, 2008Publication date: October 2, 2008Inventors: Timothy P. Holme, Friedrich B. Prinz, Masayuki Sugawara
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Patent number: 7429404Abstract: A method for forming multi-metallic sites on a substrate is disclosed and described. A substrate including active groups such as hydroxyl can be reacted with a pretarget metal complex. The target metal attached to the active group can then be reacted with a secondary metal complex such that an oxidation-reduction (redox) reaction occurs to form a multi-metallic species. The substrate can be a highly porous material such as aerogels, xerogels, zeolites, and similar materials. Additional metal complexes can be reacted to increase catalyst loading or control co-catalyst content. The resulting compounds can be oxidized to form oxides or reduced to form metals in the ground state which are suitable for practical use.Type: GrantFiled: August 29, 2005Date of Patent: September 30, 2008Assignee: University of Utah Research FoundationInventors: Richard D. Ernst, Edward M. Eyring, Gregory C. Turpin, Brian C. Dunn
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Patent number: 7429406Abstract: A method of forming a thin ruthenium-containing layer includes performing a CVD process using butyl ruthenoscene as a ruthenium source material. The thin ruthenium-containing layer may be formed by a one-step or two-step CVD process. The one-step CVD process is performed under a constant oxygen flow rate and a constant deposition pressure. The two-step CVD process includes forming a seed layer and forming a main layer, each of which is performed under a different process condition of a deposition temperature, an oxygen flow rate, and a deposition pressure.Type: GrantFiled: December 16, 2004Date of Patent: September 30, 2008Assignee: Samsung Electronics Co., Inc.Inventors: Soon-Yeon Park, Cha-Young Yoo, Seok-Jun Won
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Publication number: 20080226820Abstract: A film formation method for forming a metal oxide film includes loading a target object into a process container configured to maintain a vacuum therein; supplying a film formation source material into the process container; supplying an oxidizing agent into the process container; and causing the film formation source material and the oxidizing agent to react with each other, thereby forming a metal oxide film on the target object. The film formation source material is an organic metal compound containing a metal of the metal oxide film and prepared by mixing a first organic metal compound that is solid at room temperature and has a higher vapor pressure with a second organic metal compound that is liquid at room temperature such that the organic metal compound is liquid at room temperature.Type: ApplicationFiled: March 6, 2008Publication date: September 18, 2008Inventor: Haruhiko Furuya
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Patent number: 7422805Abstract: Coated cemented carbide cutting tool inserts for bimetal machining under wet conditions at moderate cutting speeds, and in particular, cutting tool inserts for face milling of engine blocks formed from alloys of cast iron and aluminium and/or magnesium. The inserts are characterized by a submicron WC—Co cemented carbide and a coating including an inner layer of TiCxNy with columnar grains followed by a layer of ?-Al2O3 and a top layer of TiN.Type: GrantFiled: February 15, 2005Date of Patent: September 9, 2008Assignee: Sandvik Intellectual Property AktiebolagInventor: Ingemar Hessman
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Publication number: 20080206539Abstract: The present invention is related to carbon-doped metal oxide films. The carbon-doped metal oxide films provide a low coefficient of friction, for example ranging from about 0.05 to about 0.4. In addition, the carbon-doped metal oxide films applied over a silicon substrate, for example, provide anti-stiction properties, where the measured work of adhesion for a MEMS device cantilever beam coated with the carbon-doped metal oxide film is less than 10 ?J/m2. In addition, the carbon-doped metal oxide films provide unexpectedly good water vapor transmission properties. The carbon content in the carbon-doped metal oxide films ranges from about 5 atomic % to about 20 atomic %.Type: ApplicationFiled: February 22, 2008Publication date: August 28, 2008Inventors: Boris Kobrin, Romuald Nowak, Jeffrey D. Chinn
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Publication number: 20080196985Abstract: A brake disk including carbon steel, stainless steel or a ceramic composite material and coated with a coating material that is wear and corrosion resistant and when applied properly allows for the coated surface to have a variety of “textured” appearances. For example; the coated surface can be made to look like woven carbon fiber. The aesthetically pleasing, wear and corrosion resistant coating overlays wear surfaces and portions of the brake disk that will be, in many cases, visible when the brake disk is installed on the vehicle. The coating includes a first layer of a metal, such as a pure titanium metal, and a second layer that can include a Nitride, Boride, Carbide or Oxide of the metal used in the first layer. The coating can be applied using a physical vapor deposition source such as a cathodic arc source with a controlled gas atmosphere.Type: ApplicationFiled: February 20, 2008Publication date: August 21, 2008Applicant: Tech M3, Inc.Inventor: Nathan K. Meckel
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Patent number: 7407686Abstract: An optical film is disclosed having minimal curl, minimal coating unevenness and no cracks. The optical film is obtained by casting a dope comprising a cellulose ester and a non-chlorinated solvent on a metal support, the cellulose ester having a total acyl substitution degree of 2.6 to 2.85 and having a ratio of a weight-average molecular weight to a number-average molecular weight of 1:1 to 3:1; drying the cast dope on the metal support so as to obtain a cellulose ester film; peeling the cellulose ester film from the metal support; further drying the cellulose ester film while providing a longitudinal stretch or a lateral stretch to the cellulose ester film; and providing a metal oxide layer on the cellulose ester film.Type: GrantFiled: September 28, 2005Date of Patent: August 5, 2008Assignee: Konica CorporationInventor: Takashi Murakami
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Patent number: 7390381Abstract: An information recording medium that is excellent in repeated-rewriting performance and is deteriorated less in crystallization sensitivity with time is provided, with respect to which high density recording can be carried out. A method of manufacturing the same also is provided. The information recording medium includes a substrate and a recording layer disposed above the substrate. The recording layer contains, as constituent elements, Ge, Sb, Te, Sn, and at least one element M selected from Ag, Al, Cr, Mn, and N and is transformed in phase reversibly between a crystal phase and an amorphous phase by an irradiation of an energy beam.Type: GrantFiled: December 12, 2003Date of Patent: June 24, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Rie Kojima, Noboru Yamada, Takashi Nishihara
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Publication number: 20080131602Abstract: Chemical vapor deposition (CVD) is used to synthesize single-wall carbon nanotubes by a catalytic reaction, and a method of preparing the catalyst is also provided. A transition metal catalyzing growth of carbon nanotubes, an oxide of a precursor metal preventing agglomeration of catalyst particles, and a precious metal are essentially consisted in the catalyst. The catalyst particles can be further dispersed by quasi-explosive effect occurred when the oxidized precious metal is reduced.Type: ApplicationFiled: May 16, 2007Publication date: June 5, 2008Applicant: RITEK CORPORATIONInventors: Wei-Hsiang WANG, Cheng-Tzu KUO, Tsai-Hau HONG
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Patent number: 7351658Abstract: This invention concerns a process for producing oxide thin film on a substrate by an ALD type process. According to the process, alternating vapour-phase pulses of at least one metal source material, and at least one oxygen source material are fed into a reaction space and contacted with the substrate. According to the invention, an yttrium source material and a zirconium source material are alternately used as the metal source material so as to form an yttrium-stabilised zirconium oxide (YSZ) thin film on a substrate.Type: GrantFiled: August 13, 2004Date of Patent: April 1, 2008Inventor: Matti Putkonen
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Patent number: 7338582Abstract: It is an object of the present invention to provide an oxygen reduction electrode having excellent oxygen reduction catalysis ability. In a method of manufacturing a manganese oxide nanostructure having excellent oxygen reduction catalysis ability and composed of secondary particles which are aggregations of primary particles of manganese oxide, a target plate made of manganese oxide is irradiated with laser light to desorb the component substance of the target plate, and the desorbed substance is deposited on a substrate facing substantially parallel to the aforementioned target plate.Type: GrantFiled: August 16, 2005Date of Patent: March 4, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Nobuyasu Suzuki, Yasunori Morinaga, Hidehiro Sasaki, Yuka Yamada
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Patent number: 7332442Abstract: A method of forming (and apparatus for forming) a metal oxide layer, preferably a dielectric layer, on a substrate, particularly a semiconductor substrate or substrate assembly, using a vapor deposition process and ozone with one or more metal organo-amine precursor compounds.Type: GrantFiled: July 12, 2006Date of Patent: February 19, 2008Assignee: Micron Technology, Inc.Inventors: Brian A. Vaartstra, Timothy A. Quick
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Patent number: 7309514Abstract: A process for forming low dielectric constant dielectric films for the production of microelectronic devices. A dielectric layer is formed on a substrate by chemical vapor depositing a monomeric or oligomeric dielectric precursor in a chemical vapor deposit apparatus, or a reaction product formed from the precursor in the apparatus, onto a substrate, to form a layer on a surface of a substrate. After optionally heating the layer at a sufficient time and temperature to dry the layer, the layer is then exposed to electron beam radiation, for a sufficient time, temperature, electron beam energy and electron beam dose to modify the layer. The electron beam exposing step is conducted by overall exposing the dielectric layer with a wide, large beam of electron beam radiation from a large-area electron beam source.Type: GrantFiled: January 14, 2003Date of Patent: December 18, 2007Assignee: Applied Materials, Inc.Inventors: Matthew Ross, Heike Thompson, Jingjun Yang
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Patent number: 7285312Abstract: A method and superalloy component for depositing a layer of material onto gas turbine engine components by atomic layer deposition. A superalloy component may have a ceramic thermal barrier coating on at least a portion of its surface, comprising a superalloy substrate and a bonding coat; and aluminum oxide (Al2O3) layer may be deposited on top of an yttria-stabilized zirconia layer and form a bonding coat by atomic layer deposition. The yttria-stabilized zirconia layer may have a plurality of micron sized gaps extending from the top surface of the ceramic coating towards the substrate and defining a plurality of columns of the yttria-stabilized zirconia layer. Also, atomic layer deposition may be used to lay an aluminum oxide (Al2O3) layer over a tantalum oxide (Ta2O5) layer on a silicon-based substrate.Type: GrantFiled: January 16, 2004Date of Patent: October 23, 2007Assignee: Honeywell International, Inc.Inventor: Chien-Wei Li
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Patent number: 7285308Abstract: A multi-step method for depositing ruthenium thin films having high conductivity and superior adherence to the substrate is described. The method includes the deposition of a ruthenium nucleation layer followed by the deposition of a highly conductive ruthenium upper layer. Both layers are deposited using chemical vapor deposition (CVD) employing low deposition rates.Type: GrantFiled: March 18, 2004Date of Patent: October 23, 2007Assignee: Advanced Technology Materials, Inc.Inventors: Bryan C. Hendrix, James J. Welch, Steven M. Bilodeau, Jeffrey F. Roeder, Chongying Xu, Thomas H. Baum
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Patent number: 7258895Abstract: The invention includes methods of forming material on a substrate and methods of forming a field effect transistor gate oxide. In one implementation, a first species monolayer is chemisorbed onto a substrate within a chamber from a gaseous first precursor. The first species monolayer is discontinuously formed over the substrate. The substrate having the discontinuous first species monolayer is exposed to a gaseous second precursor different from the first precursor effective to react with the first species to form a second species monolayer, and effective to form a reaction product of the second precursor with substrate material not covered by the first species monolayer. The substrate having the second species monolayer and the reaction product is exposed to a third gaseous substance different from the first and second precursors effective to selectively remove the reaction product from the substrate relative to the second species monolayer. Other implementations are contemplated.Type: GrantFiled: August 6, 2003Date of Patent: August 21, 2007Assignee: Micron Technology, Inc.Inventor: Gurtej S. Sandhu
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Patent number: 7241479Abstract: The present invention is generally directed to a novel process for the production of nanowires and nanobelts and the novel nanostructures which can be produced according to the disclosed processes. The process can be carried out at ambient pressure and includes locating a metal in a reaction chamber, heating the chamber to a temperature at which the metal becomes molten, and flowing a vapor-phase reactant through the chamber. The vapor-phase reactant and the molten metal can react through a thermal CVD process, and nanostructures can form on the surface of the molten metal. Dimensions of the nanostructures can be controlled by reaction temperature.Type: GrantFiled: August 22, 2003Date of Patent: July 10, 2007Assignee: Clemson UniversityInventors: Apparao M. Rao, Rahul Rao
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Patent number: 7220451Abstract: Electrically conductive noble metal thin films can be deposited on a substrate by atomic layer deposition. According to one embodiment of the invention a substrate with a surface is provided in a reaction chamber and a vaporised precursor of a noble metal is pulsed into the reaction chamber. By contacting the vaporised precursor with the surface of the substrate, no more than about a molecular layer of the metal precursor is formed on the substrate. In a next step, a pulse of molecular oxygen-containing gas is provided in the reaction chamber, where the oxygen reacts with the precursor on the substrate. Thus, high-quality metal thin films can be deposited by utilising reactions between the metal precursor and oxygen. In one embodiment, electrically conductive layers are deposited in structures that have high aspect ratio vias and trenches, local high elevation areas or other similar surface structures that make the surface rough.Type: GrantFiled: August 10, 2004Date of Patent: May 22, 2007Assignee: ASM International N.V.Inventors: Titta Aaltonen, Petra Alén, Mikko Ritala, Markku Leskelä
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Patent number: 7211296Abstract: Chalcogenide nanowires and other micro-and nano scale structures are grown on a preselected portion of on a substrate. They are amorphous and of uniform composition and can be grown by a sublimation-condensation process onto the surface of an amorphous substrate. Among other uses, these structures can be used as coatings on optical fibers, as coatings on implants, as wispering galleries, in electrochemical devices, and in nanolasers.Type: GrantFiled: August 22, 2003Date of Patent: May 1, 2007Assignee: Battelle Memorial InstituteInventors: Bradley R. Johnson, Michael J. Schweiger, Brett D. MacIsaac, S. Kamakshi Sundaram
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Patent number: 7211216Abstract: An aluminum nitride ceramic including aluminum nitride grains and grain boundary phases comprises a grain boundary phase-rich layer including more amount of the grain boundary phases in a surface layer of the aluminum nitride ceramic than in an inside of the aluminum nitride ceramic. The grain boundary phases in the grain boundary phase-rich layer include at least one of rare earth element and alkali earth element.Type: GrantFiled: June 15, 2005Date of Patent: May 1, 2007Assignee: NGK Insulators, Ltd.Inventors: Yoshimasa Kobayashi, Naohito Yamada, Toru Hayase
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Patent number: 7208195Abstract: A method for depositing a thin film includes the steps of providing a vapor including at least one selected vapor phase component into an evacuated chamber and condensing the vapor onto a heated substrate to form a liquid phase deposit wherein a temperature of the substrate is lower than the condensation temperature of the component. The liquid deposit is then cooled to produce a solid phase film. The invention can provide two or more vapor phase components. The invention can be used to deposit a wide variety of layers, including thin films of metallic, semiconductor and nonmetallic inorganic materials. The invention is useful for forming solid electrolytes and the electrodes for batteries, fuel cells and other electromagnetically active devices.Type: GrantFiled: March 27, 2002Date of Patent: April 24, 2007Assignee: Ener1Group, Inc.Inventors: Yevgen Kalynushkin, Elena Shembel, Peter Novak, Chris Flury
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Patent number: 7205247Abstract: A method of depositing a hafnium-based dielectric film is provided. The method comprises atomic layer deposition using ozone and one or more reactants comprising a hafnium precursor. A semiconductor device is also provided. The device comprises a substrate, a hafnium-based dielectric layer formed atop the substrate, and an interfacial layer formed between the substrate and the hafnium-based dielectric layer, wherein the interfacial layer comprises silicon dioxide and has a crystalline structure.Type: GrantFiled: September 29, 2004Date of Patent: April 17, 2007Assignee: Aviza Technology, Inc.Inventors: Sang-In Lee, Jon S. Owyang, Yoshihide Senzaki, Aubrey L. Helms, Jr., Karem Kapkin
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Patent number: 7192623Abstract: A thin layer of hafnium oxide or stacking of thin layers comprising hafnium oxide layers for producing surface treatments of optical components, or optical components, in which at least one layer of hafnium oxide is in amorphous form and has a density less than 8 gm/cm3. The layer is formed by depositing on a substrate without energy input to the substrate.Type: GrantFiled: June 27, 2003Date of Patent: March 20, 2007Assignee: Commissariat a l'Energie AtomiqueInventors: Bernard Andre, Jean Dijon, Brigitte Rafin
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Patent number: 7192625Abstract: In manufacturing a barrier-forming film, a vapor-deposited inorganic oxide film is provided on a face of a substrate film. An annealing treatment is applied to the substrate film having said vapor-deposited inorganic film. The substrate film is a resinous film which selected from a group consisting of polyesters, polyamides and polypropylenes. The annealing treatment includes a heating treatment carried out at a temperature within the range from 55° C. to 150° C. in order to cause thermal shrinkage of the substrate film and to increase density of the vapor-deposited inorganic oxide film. The vapor-deposited inorganic oxide film includes a vapor-deposited silicon oxide film or a vapor-deposited aluminum oxide film.Type: GrantFiled: February 24, 2004Date of Patent: March 20, 2007Assignee: Dai Nippon Printing Co., Ltd.Inventors: Koujiro Ohkawa, Atsuo Tsuzuki, Kuniaki Yoshikata
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Patent number: 7189431Abstract: A method for forming a passivated metal layer that preserves the properties and morphology of an underlying metal layer during subsequent exposure to oxygen-containing ambients. The method includes providing a substrate in a process chamber, exposing the substrate to a process gas containing a rhenium-carbonyl precursor to deposit a rhenium metal layer on the substrate in a chemical vapor deposition process, and forming a passivation layer on the rhenium metal layer to thereby inhibit oxygen-induced growth of rhenium-containing nodules on the rhenium metal surface.Type: GrantFiled: September 30, 2004Date of Patent: March 13, 2007Assignees: Tokyo Electron Limited, International Business Machines Corp.Inventors: Hideaki Yamasaki, Kazuhito Nakamura, Yumiko Kawano, Gert J. Leusink, Fenton R. McFeely, Paul Jamison
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Patent number: 7182979Abstract: A method directed to the use of a nonvolatile precursor, either a solid or liquid precursor, suitable for CVD, including liquid source CVD (LSCVD). Using the method of the invention the nonvolatile precursor is dissolved in a solvent. Choice of solvent is typically an inorganic compound that has a moderate to high vapor pressure at room temperature, which can be liquified by combination of pressure and cooling. The solution is then transported at an elevated pressure and/or a reduced temperature to the CVD chamber. The solution evaporates at a higher temperature and a lower pressure upon entry to the CVD chamber, and the nonvolatile precursor, in its gaseous state, along with a gas reactant, produces a product which is deposited on a semiconductor wafer. In LSCVD the liquid enters the chamber, contacts the wafer, evaporates, produces a product which is deposited as a thin film.Type: GrantFiled: August 5, 2002Date of Patent: February 27, 2007Assignee: Micron Technology, Inc.Inventors: Donald L. Westmoreland, Gurtej S. Sandhu