Flurocarbon Containing Coating Patents (Class 427/490)
  • Patent number: 6764809
    Abstract: A process of forming a resist image in a microelectronic substrate comprises the steps of contacting the substrate with a composition first comprising carbon dioxide and a component selected from the group consisting of at least one polymeric precursor, at least one monomer, at least one polymeric material, and mixtures thereof to deposit the component on the substrate and form a coating thereon; then imagewise exposing the coating to radiation such that exposed and unexposed coating portions are formed; then subjecting the coating to a second composition comprising carbon dioxide having such that either one of the exposed or the unexposed coating portions are removed from the substrate and the other coating portion is developed and remains on the coating to form an image thereon.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: July 20, 2004
    Assignees: North Carolina State University, University of North Carolina at Chapel Hill
    Inventors: Joseph M. DeSimone, Ruben G. Carbonell, Jonathan Kendall, Christopher L. McAdams
  • Patent number: 6649222
    Abstract: A method for treating substrates including the steps of: providing a substrate; exposing said substrate to a plasma glow discharge in the presence of a fluorocarbon gas; maintaining said gas at a pressure between about 50 mTorr and about 400 mTorr; generating said plasma as a modulated glow discharge; pulsing said discharge at an on time of 1-500 milliseconds; pulsing said glow at an off time of 1-1000 milliseconds; maintaining said plasma glow discharge at a power density of 0.02-10 watts/cm2; and applying a hydrophobic coating to said substrate.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: November 18, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Riccardo D'Agostino, Italo Corzani, Pietro Favia, Ritalba Lamendola, Gianfranco Palumbo
  • Patent number: 6642300
    Abstract: To provide the filler which is added to a composition for a sealing member, etc. for sealing of semi-conductor production equipment being apt to be damaged greatly by mixing of a foreign matter and is small in a change in weight in either of the oxygen plasma irradiation and CF4 plasma irradiation, and the crosslinkable elastomer composition. The filler is used for the crosslinkable elastomer and has an imide structure, and a change in weight of the filler is not more than 4 mg/cm2·hr in either of the oxygen plasma irradiation and CF4 plasma irradiation. The crosslinkable elastomer composition comprises the filler and the crosslinkable elastomer such as a fluorine-containing elastomer.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: November 4, 2003
    Assignee: Daikin Industries, Ltd.
    Inventors: Seiji Kawaguchi, Tsuyoshi Noguchi, Takafumi Yamato, Mitsuru Kishine
  • Publication number: 20030203655
    Abstract: A material containing, as a main component, an organic silicon compound represented by the following general formula:
    Type: Application
    Filed: March 28, 2003
    Publication date: October 30, 2003
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Gaku Sugahara, Nobuo Aoi, Koji Arai, Kazuyuki Sawada
  • Patent number: 6632470
    Abstract: A method of modifying surfaces of a device, for example, a medical device, is disclosed. The method includes modifying a surface of a device by providing a device, exposing the device to a reactive gas and plasma energy to create a plasma deposited surface on the device, and quenching the device with the reactive gas. The device exhibits changes in its surface properties thereby making it more desirable for an intended use.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: October 14, 2003
    Assignee: Percardia
    Inventors: Marco Morra, Clara Cassinelli, Linda Lee Cahalan, Patrick T. Cahalan
  • Patent number: 6595623
    Abstract: There is provided a plastic base material having a reformed layer 2 formed on a plastic substrate 1 by reforming the surface layer thereof into a component containing fluorine at the ratio of the number of fluorine atoms to the number of carbon atoms, F/C, of 0.85 or more and 1.30 or less, and having highly durable water repellency and ink repellency. The method of manufacturing such a plastic base material comprises a step of reforming the surface of the plastic substrate 1 into a fluorine-containing carbon layer by imparting a specific energy to fluorine-containing plasma by applying an RF bias voltage to the plastic substrate 1 to form a surface having highly durable water repellency and ink repellency. A highly durable ink-jet printer that enables high-quality printing can be provided by the use of a head for an ink-jet printer fabricated by using this plastic base material.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: July 22, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koichi Kotera, Hiroyoshi Tanaka, Isamu Inoue, Osamu Watanabe
  • Patent number: 6558756
    Abstract: A material containing, as a main component, an organic silicon compound represented by the following general formula: R1xSi(OR2)4-x (where R1 is a phenyl group or a vinyl group; R2 is an alkyl group; and x is an integer of 1 to 3) is caused to undergo plasma polymerization or react with an oxidizing agent to form an interlayer insulating film composed of a silicon oxide film containing an organic component. As the organic silicon compound where R1 is a phenyl group, there can be listed phenyltrimethoxysilane or diphenyldimethoxysilane. As the organic silicon compound where R1 is a vinyl group, there can be listed vinyltrimethoxysilane or divinyldimethoxysilane.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: May 6, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Gaku Sugahara, Nobuo Aoi, Koji Arai, Kazuyuki Sawada
  • Patent number: 6551950
    Abstract: A method of coating a surface with a polymer layer, which method comprises exposing said surface to a plasma comprising a monomeric unsaturated organic compound which comprises a chain of carbon atoms, which are optionally substituted by halogen; provided that where the compound is a perhalogenated alkene, it has a chain of at least 5 carbon atoms; so as to form an oil or water repellent coating on said substrate.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: April 22, 2003
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Jas P S Badyal, Stephen R Coulson, Colin R Willis, Stuart A Brewer
  • Patent number: 6541118
    Abstract: An insulator with a molding made of ceramic and a hydrophobic coating applied to the surface of the molding is disclosed, the hydrophobic coating comprising a plasma polymer having been applied directly to the ceramic. The previously customary glaze on the surface of the ceramic is replaced by the plasma polymer. Such an insulator has high long-term stability with regard to its electrical insulating capability. It is possible to dispense with complicated shaping of the molding to increase the leakage path over the surface of the ceramic and with the application of a glaze, which means a considerable cost saving.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: April 1, 2003
    Assignee: Siemens Aktiengesellschaft
    Inventors: Alfred Baalmann, Otto-Diedrich Hennemann, Johannes Liebermann, Klaus Vissing
  • Publication number: 20030059619
    Abstract: A pressure member for use in fixing toner to a receiver comprises a support an intermediate layer disposed on the support, and an outermost layer formed from a cured composition comprising a fluorocarbon thermoplastic random copolymer, a curing agent, a particulate filler containing zinc oxide, and a curable aminosiloxane, wherein the fluorocarbon thermoplastic random copolymer has subunits of:
    Type: Application
    Filed: September 21, 2001
    Publication date: March 27, 2003
    Applicant: NexPress Solutions LLC
    Inventors: Jiann Hsing Chen, Joseph A. Pavlisko, Robert Arthur Lancaster, Charles Eugene Hewitt
  • Patent number: 6534182
    Abstract: A tetrafluoroethylene-ethylene copolymer (ETFE) film, wherein polar groups are present on the surface of the film after a surface treatment, and the surface roughness Ra is at most the surface roughness Ra of the surface of an untreated film; an ETFE film, wherein polar groups are present on the surface of the film after a surface treatment, and the amount of a weak boundary layer is at most one time of the amount of a weak boundary layer on the surface of an untreated film; a laminate employing such a film having an extremely excellent bonding strength; and a process for producing it with a mass production property.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: March 18, 2003
    Assignee: Asahi Glass Company Ltd.
    Inventors: Satoshi Oki, Atsushi Hayashi, Makoto Fukawa, Hiroshi Aruga, Yasuo Hayashi, Shigeaki Yonemori, Yukio Jitsugiri
  • Patent number: 6528170
    Abstract: The invention relates to a metal substrate with a corrosion-resistant coating produced by means of plasma polymerization, wherein the substrate is subjected to mechanical, chemical and/or electrochemical smoothing in a pre-treatment step and is subsequently exposed to a plasma at a temperature of less than 200° C. and at a pressure of 10−5 bis 100 mbars, whereby in a first step the surface is activated in a reducing plasma and in a second step the polymer is separated from a plasma containing at least one hydrocarbon or silico-organic compound which can be vaporized in plasma conditions, optionally contains oxygen, nitrogen or sulphur and can contain fluorine.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: March 4, 2003
    Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e. V.
    Inventors: Alfred Baalmann, Henning Stuke, Klaus-Dieter Vissing, Hartmut Hufenbach, Wolfgang Semrau
  • Patent number: 6514573
    Abstract: A method for reducing crazing in a plastics material characterised in that it comprises the steps of: (1) cleaning the surface of the material; and (2) exposing the cleaned surface to plasma of a monomer vapour so as to produce a substantially non-oxidising plasma polymer coating on the surface.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: February 4, 2003
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Jonathan Howard Hodgkin, Hans Jorg Griesser, Thomas Reinhold Gengenbach
  • Patent number: 6508416
    Abstract: An electromagnetic fuel injector having improved wear characteristics comprises a body having a fuel inlet and a fuel outlet. A valve seat is sealably connected to the body, and a moveable valve member positioned at the fuel outlet for controlling the flow of fuel from the outlet comprises a valve outlet element that provides a sealing interface with the valve seat. The valve member and included valve outlet element further comprise wear surfaces that are subject to repeated impact and/or sliding contact; at least a portion of these wear surfaces comprise an applied layer of diamond-like carbon (DLC) stabilized by inclusion of greater than 30 weight percent of a carbide-forming material selected from the group consisting of silicon, titanium, and tungsten.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: January 21, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Noreen Louise Mastro, Jeffrey Mark Noll, David Wesley Rogers, Robert Halsall, Stephen Joel Harris, Anita Miriam Weiner
  • Patent number: 6506457
    Abstract: The present methods provide an amorphous, conformal, protective, abrasion-resistant, lubricious fluoropolymer coating on to a polymer substrate via a gas plasma deposition method. The coating method, according to one embodiment of the method, involves generating a gas plasma by introducing a mixture of a fluorinated gas monomer and a hydrocarbon gas into an energetic ion field, such as an ion beam or the field produced by a radio-frequency source. The fluorinated gas monomer is selected from the group consisting of CF.sub.4, C.sub.2 F.sub.4, C.sub.2 F.sub.6, CF.sub.3.sub.2CO, CH.sub.2 CF.sub.2 and mixtures of the foregoing. The hydrocarbon gas is selected from the group consisting of C.sub.2 H.sub.2, C.sub.2 H.sub.4, C.sub.2 H.sub.6, and H.sub.2 and mixtures of the foregoing. The polymer substrate is exposed to the foregoing gas plasma for sufficient time to achieve the desired coating thickness.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: January 14, 2003
    Assignee: Cardiac Pacemakers, Inc.
    Inventor: Larry L. Hum
  • Patent number: 6488992
    Abstract: Elastomeric seals, including O-rings, may have chemically resistant thin films applied by the technique of plasma polymerization to the surface of the elastomer, enhancing wear resistance and environmental resistance without changing the physical properties of the elastomer. The films may be a silane polymer applied by plasma deposition in a radio frequency/microwave dual power source reactor.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: December 3, 2002
    Assignee: University of Cincinnati
    Inventors: F. James Boerio, Alan M. Dickey, R. Giles Dillingham, Kristy J. Johnson, David A. Penning
  • Patent number: 6444274
    Abstract: A process for producing antiadhesive layers on a web-form material, characterized in that the antiadhesive layers are applied to the web-form material by means of low pressure plasma polymerization by guiding the web-form material continuously through a plasma zone containing a low pressure plasma.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: September 3, 2002
    Assignee: tesa AG
    Inventor: Olaf Görbig
  • Patent number: 6444275
    Abstract: A thermal ink jet printhead contains, on a front face, a remote plasma deposited fluoropolymer film. The fluoropolymer film has a high fluorine to carbon ratio. The film also possesses excellent mechanical durability.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: September 3, 2002
    Assignee: Xerox Corporation
    Inventors: Daniel E. Kuhman, Christopher Constantine, Kevin N. Beatty
  • Publication number: 20020114954
    Abstract: A thin fluoropolymer film is bonded to a substrate for medical, filtration or packaging purposes by using a pulsed or combination of gas and electrical pulsed cold plasma polymerization procedures.
    Type: Application
    Filed: February 20, 2002
    Publication date: August 22, 2002
    Applicant: Mupor Limited
    Inventors: Jas-Pal S. Badyal, Simon J. Hutton
  • Patent number: 6413630
    Abstract: A decorative film having an excellent decorative effect, excellent three-dimensional curvature emulating properties, three-dimensional curvature formability, long-term weather resistance and stain resistance. The decorative film comprises one or more transparent layers and a decorative metal layer. The transparent layer has an adhered side for being adhered to a substrate. The transparent layer comprises a copolymer of a tetrafluoroethylene, a hexafluoropropylene and a vinylidene fluoride. The decorative metal layer is on the adhered side of the transparent layer. A substrate can be bonded to the metal layer of the decorative film. The substrate can be a complex three-dimensional shaped substrate. The substrate can also be an injection molded substrate. An adhesive can be disposed on the metal layer of the decorative film, and the adhesive layer can be disposed between the metal layer and the substrate.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: July 2, 2002
    Assignee: 3M Innovative Properties Company
    Inventor: Akihiko Nakayama
  • Patent number: 6379741
    Abstract: The surface of a high molecular weight polymer such as high molecular weight polyethylene is modified in a localized manner by treatment with a plasma gas. The treatment produces a variety of useful results, depending on the gas used and the treatment conditions. One such result is crosslinking of the polymer in a localized manner at the surface to improve the durability of the surface against detrimental processes such as reorientation and alignment of the crystalline lamellae parallel to the contact surface which renders the surface susceptible to disintegration into particles. Another result is the chemical transformation of the surface for purposes such as increasing the hydrophilic or hydrophobic nature of the surface or coupling functional groups to the surface.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: April 30, 2002
    Assignee: The Regents of the University of California
    Inventors: Kyriakos Komvopoulos, Catherine M. Klapperich, Lisa A. Pruitt, Stephen L. Kaplan
  • Patent number: 6365528
    Abstract: A low temperature process is described for forming a low dielectric constant (k) fluorine and carbon-containing silicon oxide dielectric material for integrated circuit structures. A reactor has a semiconductor substrate mounted on a substrate support which is maintained at a low temperature not exceeding about 25° C., preferably not exceeding about 10° C., and most preferably not exceeding about 0° C. A low k fluorine and carbon-containing silicon oxide dielectric material is formed on the surface of the substrate by reacting together a vaporous source of a mild oxidizing agent, such as a vaporized hydrogen peroxide, and a vaporous substituted silane having the formula (CFmHn)—Si—(R)xHy wherein m is 1-3; n is 3-m; R is an alkyl selected from the group consisting of ethyl (—C2H5), methyl (—CH3), and mixtures thereof; x is 1-3; and y is 3-x.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: April 2, 2002
    Assignee: LSI Logic Corporation
    Inventors: Valeriy Sukharev, Vladimir Zubkov
  • Patent number: 6358569
    Abstract: A method of applying a thin film to a body comprising exposing the body to pulsed-gas cold-plasma polymerization of an unsaturated-carboxylic acid monomer thereby forming a polymer film on a surface of the body.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: March 19, 2002
    Assignee: Mupor Limited
    Inventors: Jas Pal S Badyal, Simon J. Hutton
  • Patent number: 6342275
    Abstract: Gas discharge is caused in a predetermined discharging gas at atmospheric pressure or a pressure close to atmospheric pressure, and an organic material which is liquid at room temperature and which is previously contained in the discharging gas or applied to a surface of a treated member is dissociated or excited by a plasma caused by the gas discharge to generate activated species. By using these excited activated species, a polymerized film of organic material is formed on the surface of the treated member. By variously selecting the organic material or the kind of the discharging material and variously combining them, a water repellent film, a hydrophilic film or a film having a high hardness can easily be formed on the surface of the treated member according to use, or the polymerization speed of the organic material can be increased, or the polymerization can be limited.
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: January 29, 2002
    Assignee: Seiko Epson Corporation
    Inventors: Takuya Miyakawa, Hiroaki Akiyama, Shintaro Asuke
  • Publication number: 20010051228
    Abstract: A material containing, as a main component, an organic silicon compound represented by the following general formula:
    Type: Application
    Filed: July 9, 2001
    Publication date: December 13, 2001
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Gaku Sugahara, Nobuo Aoi, Koji Arai, Kazuyuki Sawada
  • Patent number: 6329023
    Abstract: A magnetic hard disk drive comprising a magnetic disk and a magnetic head slider, characterized in that said magnetic head slider is coated with a layer having a contact angle of 50° or more when measured by using a lubricant coated on the magnetic disk, is free from start failure due to stiction caused by adhesion of the lubricant to the slider surface.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: December 11, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Hiromitsu Tokisue, Sunao Yonekawa, Nobuyuki Ishii, Yasuyuki Horiguchi, Yoshishige Endo, Yasuhiro Yoshimura, Yutaka Ito, Osamu Narisawa, Hiroshi Yuyama, Youichi Inoue, Yukiko Ikeda
  • Publication number: 20010029110
    Abstract: Fluorinated chemical precursors, methods of manufacture, polymer thin films with low dielectric constants, and integrated circuits comprising primarily of sp2C—F and some hyperconjugated sp3C—F bonds are disclosed in this invention. Precursors are disclosed for creating fluorinated silanes and siloxanes, and fluorinated hydrocarbon polymers. Thermal transport polymerization (TP), chemical vapor deposition (CVD), plasma enhanced CVD (PECVD), high density PECVD (HDPCVD), photon assisted CVD (PACVD), and plasma-photon assisted (PPE) CVD and PPETP of these chemicals provides thin films with low dielectric constants and high thermal stabilities for use in the manufacture of integrated circuits.
    Type: Application
    Filed: April 17, 2001
    Publication date: October 11, 2001
    Applicant: Quester Technology, Inc.
    Inventors: Chung J. Lee, Hui Wang, Giovanni Antonio Foggiato
  • Patent number: 6296946
    Abstract: There is provided a plastic base material having a reformed layer 2 formed on a plastic substrate 1 by reforming the surface layer thereof into a component containing fluorine at the ratio of the number of fluorine atoms to the number of carbon atoms, F/C, of 0.85 or more and 1.30 or less, and having highly durable water repellency and ink repellency. The method of manufacturing such a plastic base material comprises a step of reforming the surface of the plastic substrate 1 into a fluorine-containing carbon layer by imparting a specific energy to fluorine-containing plasma by applying an RF bias voltage to the plastic substrate 1 to form a surface having highly durable water repellency and ink repellency. A highly durable ink-jet printer that enables high-quality printing can be provided by the use of a head for an ink-jet printer fabricated by using this plastic base material.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: October 2, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koichi Kotera, Hiroyoshi Tanaka, Isamu Inoue, Osamu Watanabe
  • Patent number: 6258407
    Abstract: Fluorinated chemical precursors, methods of manufacture, polymer thin filmswith low dielectric constants, and integrated circuits comprising primarily of sp2C—F and some hyperconjugated sp3C—F bonds are disclosed in this invention. Precursors are disclosed for creating fluorinated silanes and siloxanes, and fluorinated hydrocarbon polymers. Thermal transport polymerization (TP), chemical vapor deposition (CVD), plasma enhanced CVD (PECVD), high density PECVD (HDPCVD), photon assisted CVD (PACVD), and plasma-photon assisted (PPE) CVD and PPETP of these chemicals provides thin films with low dielectric constants and high thermal stabilities for use in the manufacture of integrated circuits.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: July 10, 2001
    Assignee: Quester Technology, Inc.
    Inventors: Chung J. Lee, Hui Wang, Giovanni Antonio Foggiato
  • Patent number: 6255718
    Abstract: An integrated circuit coated with a layer of plasma deposited polymer which is ablatable by visible light laser radiation. The plasma layer is deposited on the circuit in a plasma chamber and the layer is ablated at selected locations.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: July 3, 2001
    Assignee: Chip Express Corporation
    Inventors: Meir Janai, Yoram Cassuto, Michael Stephen Silverstein, Sharon Zehavi
  • Patent number: 6242054
    Abstract: The invention relates to a method for corrosion-resistant coating of metal substrates by means of plasma polymerization, wherein the substrate is subjected to mechanical, chemical and/or electrochemical smoothing in a pre-treatment step and is subsequently exposed to a plasma at a temperature of less than 200° C. and at a pressure of 10−5 bis 100 mbars, whereby in a first step the surface is activated in a reducing plasma and in a second step the polymer is separated from a plasma containing at least one hydrocarbon or silico-organic compound which can be vaporized in plasma conditions, optionally contains oxygen, nitrogen or sulphur and can contain fluorine.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: June 5, 2001
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E. V.
    Inventors: Alfred Baalmann, Henning Stuke, Klaus-Dieter Vissing, Hartmut Hufenbach
  • Patent number: 6211065
    Abstract: The present invention provides a method of depositing an amorphous fluorocarbon film using a high bias power applied to the substrate on which the material is deposited. The invention contemplates flowing a carbon precursor at rate and at a power level so that equal same molar ratios of a carbon source is available to bind the fragmented fluorine in the film thereby improving film quality while also enabling improved gap fill performance. The invention further provides for improved adhesion of the amorphous fluorocarbon film to metal surfaces by first depositing a metal or TiN adhesion layer on the metal surfaces and then stuffing the surface of the deposited adhesion layer with nitrogen. Adhesion is further improved by coating the chamber walls with silicon nitride or silicon oxynitride.
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: April 3, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Ming Xi, Eugene Tzou, Lie-Yea Cheng, Turgut Sahin, Yaxin Wang
  • Patent number: 6156434
    Abstract: A surface-treated PFA film, wherein hydroxyl groups and carbonyl groups are present on the surface of the surface-treated PFA film. Further, the surface state of the surface-treated surface is a surface state having no irregularities, and preferably the average surface roughness is at most 10 nm. The surface treatment is carried out by RF or DC bombardment method, preferably in an Ar gas atmosphere.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: December 5, 2000
    Assignee: Asahi Glass Company Ltd.
    Inventors: Atsushi Hayashi, Hiroshi Aruga, Yasuo Hayashi, Kazuo Harada, Makoto Fukawa
  • Patent number: 6153269
    Abstract: Provided are methods for forming a fluorocarbon polymer thin film on the surface of a structure. In one method, a monomer gas is exposed to a source of heat having a temperature sufficient to pyrolyze the monomer gas and produce a source of reactive CF.sub.2 species in the vicinity of the structure surface. The structure surface is maintained substantially at a temperature lower than that of the heat source to induce deposition and polymerization of the CF.sub.2 species on the structure surface. In another method for forming a fluorocarbon polymer thin film, the structure is exposed to a plasma environment in which a monomer gas is ionized to produce reactive CF.sub.2 species. The plasma environment is produced by application to the monomer gas of plasma excitation power characterized by an excitation duty cycle having alternating intervals in which excitation power is applied and in which no excitation power is applied to the monomer gas.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: November 28, 2000
    Assignee: Massachusetts Institute of Technology
    Inventors: Karen K. Gleason, Scott J. H. Limb, Edward F. Gleason, Herbert H. Sawin, David J. Edell
  • Patent number: 6145763
    Abstract: An automotive fuel injector having a fluorine-coating amphorous hydronated carbon film coating to resist the formation of carbonaceous deposits thereon. The fluorine-coating amphorous hydronated carbon film is made in part form trifluoromethyltrimethylsilane. The coating helps the fuel injector resist coking or the growth of hard carbonaceous deposits. This reduction in coking and deposits improves the fuel economy and engine performance.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: November 14, 2000
    Assignee: Ford Global Technologies, Inc.
    Inventors: Jonathan Edward Fleming, Michael Howard Parsons, Robert Eugene Hetrick, William Martin Sheeran, Xia Zhang
  • Patent number: 6132813
    Abstract: A method for modifying a substrate surface, including the step of applying a high density plasma to the substrate surface in the presence of a hydrofluorocarbon gas and a carrier gas to form an antiwetting layer on the substrate surface. Optionally, the method including a cleaning step of contacting the slider surface with a carrier gas for a period of time effective to clean the surface.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: October 17, 2000
    Assignee: International Business Machines Corporation
    Inventors: Pei C. Chen, Richard Hsiao, Son Van Nguyen, Andrew Chiuyan Ting
  • Patent number: 6107184
    Abstract: A method and apparatus for forming thin copolymer layers having low dielectric constants on semiconductor substrates includes in situ formation of p-xylylenes, or derivatives thereof, from solid or liquid precursors such as cyclic p-xylylene dimer, p-xylene, 1,4-bis(formatomethyl)benzene, or 1,4-bis(N-methyl-aminomethyl)benzene. P-xylylene is copolymerized with a comonomer having labile groups that are converted to dispersed gas bubbles after the copolymer layer is deposited on the substrate. Preferred comonomers comprise diazocyclopentadienyl, diazoquinoyl, formyloxy, or glyoxyloyloxy groups.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: August 22, 2000
    Assignee: Applied Materials, Inc.
    Inventors: Robert P. Mandal, David Cheung, Peter Wai-Man Lee, Chi-I Lang
  • Patent number: 6060129
    Abstract: Objects such as pharmaceutical vial stoppers are coated by treating with material such as a fluoropolymer. The objects to be coated are mixed with pieces of the treating material, and the resulting pile is tumbled in a reaction vessel containing a plasma. The treating material is transferred from the pieces onto the objects to be coated.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: May 9, 2000
    Assignee: Polar Materials, Inc.
    Inventors: H. Ronald Thomas, Melissa A. Baylog, Victor M. Zeeman, Jr.
  • Patent number: 6051321
    Abstract: Intermetal dielectric (IMD) and interlevel dielectric (ILD) that have dielectric constants (K) ranging from 2.0 to 2.6 are prepared from plasma or photon assisted CVD (PACVD) or transport polymerization (TP). The low K dielectric (LKD) materials are prepared from PACVD or TP of some selected siloxanes and F-containing aromatic compounds. The thin films combine barrier and adhesion layer functions with low dielectric constant functions, thus eliminating the necessity for separate adhesion and barrier layers, and layers of low dielectric constant. The LKD materials disclosed in this invention are particularly useful for <0.18 .mu.m ICs, or when copper is used as conductor in future ICs.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: April 18, 2000
    Assignee: Quester Technology, Inc.
    Inventors: Chung J. Lee, Hui Wang, Giovanni Antonio Foggiato
  • Patent number: 6022602
    Abstract: The lumen surface of tubing is modified by exposure to a gas plasma in a vacuum apparatus. A method and apparatus are disclosed whereby plasma treatment of the lumen surface, such as by deposition of a plasma polymerizate, may be achieved inside a continuous length of tubing. A gas such as a monomer vapor is caused to enter the lumen of the tubing through openings sequentially arranged at a periodic interval along the length of the tubing, and is excited to a plasma state concurrently as the tubing passes through a tubular reaction conduit having an inner diameter in occlusive contact with the tubing's outer diameter. Essentially crack-free plasma polymerizate coatings with thicknesses greater than 1000 angstroms are selectively deposited on the lumen wall of the continuous tubing. Plasma-modified tubing is prepared having usefulness in medical devices such as catheters, vascular grafts and enteral feeding tubes.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: February 8, 2000
    Assignee: NeoMecs Incorporated
    Inventor: Hiroshi Nomura
  • Patent number: 5980637
    Abstract: The present invention is generally directed to a process and a system for transforming a liquid into a solid material using light energy. In particular, a solution containing a parent material in a liquid form is atomized in a reaction vessel and directed towards a substrate. The atomized liquid is exposed to light energy which causes the parent material to form a solid coating on a substrate. The light energy can be provided from one or more lamps and preferably includes ultraviolet light. Although the process of the present invention is well suited for use in many different and various applications, one exemplary application is in depositing a dielectric material on a substrate to be used in the manufacture of integrated circuit chips.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: November 9, 1999
    Assignee: Steag RTP Systems, Inc.
    Inventors: Rajendra Singh, Rahul Sharangpani
  • Patent number: 5968609
    Abstract: A magnetic recording medium having at least a thin magnetic metal film and a carbon protective film formed on a non-magnetic substrate, wherein lubricating properties are afforded to a surface portion of the carbon protective film. Specifically, the carbon protective film having a lower layer exhibiting rust-proofing properties and/or an upper layer exhibiting lubricating properties is formed on the thin magnetic metal film. The magnetic recording medium has a good running performance, durability and preservability.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: October 19, 1999
    Assignee: Sony Corporation
    Inventors: Yukari Yamada, Ryoichi Hiratsuka, Takahiro Kawana
  • Patent number: 5958509
    Abstract: A method of coating molded plastics articles which comprises first of all fluorinating, sulfonating, oxidizing or otherwise activating the surface of the articles and then covering them with a silane coating material.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: September 28, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Petra Neumann, Joachim Rosch, Ulrich Buschges
  • Patent number: 5922415
    Abstract: The present invention provides a diamond like carbon coating comprising a surface comprising an interface and a lubricant film, said interface comprising atomic bonds between atoms in said diamond-like carbon coating and atoms in said lubricant precursor film. The invention also provides a method for producing said coating, interface, and film.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: July 13, 1999
    Assignee: Southwest Research Institute
    Inventors: Geoffrey Dearnaley, James Arps
  • Patent number: 5900288
    Abstract: A method of cleaning a substrate, in particular, the front face of a thermal ink jet printing device, to improve subsequent thin film deposition in a single chamber plasma processing system containing fluorine-containing deposits, involves treating the substrate with a hydrogen plasma. A front face coating for a thermal ink jet device may be formed by a method involving (1) treating a substrate of the thermal ink jet device with a hydrogen plasma; (2) optionally coating the cleaned substrate with an amorphous carbon layer; and (3) coating the substrate or amorphous carbon layer with a fluoropolymer layer.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: May 4, 1999
    Assignee: Xerox Corporation
    Inventors: Daniel E. Kuhman, Thomas E. Orlowski
  • Patent number: 5888591
    Abstract: Provided are methods for forming a fluorocarbon polymer thin film on the surface of a structure. In one method, a monomer gas is exposed to a source of heat having a temperature sufficient to pyrolyze the monomer gas and produce a source of reactive CF.sub.2 species in the vicinity of the structure surface. The structure surface is maintained substantially at a temperature lower than that of the heat source to induce deposition and polymerization of the CF.sub.2 species on the structure surface. In another method for forming a fluorocarbon polymer thin film, the structure is exposed to a plasma environment in which a monomer gas is ionized to produce reactive CF.sub.2 species. The plasma environment is produced by application to the monomer gas of plasma excitation power characterized by an excitation duty cycle having alternating intervals in which excitation power is applied and in which no excitation power is applied to the monomer gas.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: March 30, 1999
    Assignee: Massachusetts Institute of Technology
    Inventors: Karen K. Gleason, Scott J.H. Limb, Edward F. Gleason, Herbert H. Sawin, David J. Edell
  • Patent number: 5876758
    Abstract: The present invention relates to solid complex particles, each comprised of at least two solid substances, at least one of them being biologically active.The biologically active solid substance is comprised of at least one biologically active product and is evenly distributed at the surface of a grain consisting of the other solid core-forming substance, so-called support substance, said grain having a size comprised between 0.05 and 100 .mu.m (microns) and the weight ratio between said active substance and said core-forming substance being comprised between 10.sup.-4 and 1.5 approximately.The invention also relates to a method for the preparation of said particles, a process for the treatment of a biological surface in order to accelerate the biodisponibility of a biologically active substance.It also relates to compositions for topical application containing the particles of the invention.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: March 2, 1999
    Assignee: LVMH Recherche
    Inventors: Alain Meybeck, Frederic Bonte
  • Patent number: 5876753
    Abstract: This invention describes a new approach to three-dimensional molecular tailoring of surfaces. In this process, a plasma deposition step is initially employed to deposit reactive functional groups on the surface of a solid substrate. This is then followed by immersion of the coated substrate in a solution during which time solute molecules react with the functional surface groups introduced during the plasma process. Solute molecules are attached to the surface during this second step. This simple two-step process is of general utility in that both the nature of the plasma introduced surface group and the nature of the solute molecules can be varied. Additionally it is possible to provide exact control of the surface density of reactive groups introduced during the plasma process and thus the concentration of solute molecules coupled to the solid surfaces.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: March 2, 1999
    Assignee: Board of Regents, The University of Texas System
    Inventors: Richard B. Timmons, Jenn-Hann Wang
  • Patent number: 5849366
    Abstract: Plasma assisted polymerization and deposition of a very thin inner surface coating in a plastic or metal container without an undesirable increase in container surface temperature is provided to change the surface properties of the internal plastic surface of a container by reaction of the surface with a reactive gas which has been energized to produce a plasma or the surface is activated by a plasma of reactive gas so that it becomes receptive to a further surface reaction.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: December 15, 1998
    Assignee: The Coca-Cola Company
    Inventor: George Plester
  • Patent number: 5773098
    Abstract: A thin fluoropolymer film is covalently bonded to a microporous ptfe film to make a bilayer for separation, filtration or reverse osmosis, by exposing the microporous film to perfluorocyclohexane under plasma. The perfluorocyclohexane molecules undergo scission and the fragments combine on the substrate to make a fluoropolymer film wherein the pores of the substrate have not been completely closed by the coating.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: June 30, 1998
    Assignee: British Technology Group, Ltd.
    Inventor: Thomas Ronald Thomas