Patents by Inventor Yuuki Kobayashi

Yuuki Kobayashi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20150187582
    Abstract: Disclosed is a plasma doping apparatus and a plasma doping method for performing a doping on a processing target substrate by implanting dopant ions into the processing target substrate. The plasma doping method includes a plasma doping processing performed on the processing target substrate held on a holding unit within a processing container by generating plasma using a microwave. The plasma doping method also includes an annealing processing which is performed on the processing target substrate which has been subjected to the plasma doping processing.
    Type: Application
    Filed: December 24, 2014
    Publication date: July 2, 2015
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Hirokazu UEDA, Masahiro OKA, Yasuhiro SUGIMOTO, Masahiro HORIGOME, Yuuki KOBAYASHI
  • Patent number: 9029249
    Abstract: Disclosed is a plasma doping apparatus provided with a plasma generating mechanism. The plasma generating mechanism includes a microwave generator that generates microwave for plasma excitation, a dielectric window that transmits the microwave generated by the microwave generator into a processing container, and a radial line slot antenna formed with a plurality of slots. The radial line slot antenna radiates the microwave to the dielectric window. A control unit controls the plasma doping apparatus such that a doping gas and a gas for plasma excitation are supplied into the processing container by a gas supply unit in a state where the substrate is placed on a holding unit, and then plasma is generated by the plasma generating mechanism to perform doping on the substrate such that the concentration of the dopant implanted into the substrate is less than 1×1013 atoms/cm2.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: May 12, 2015
    Assignee: Tokyo Electron Limited
    Inventors: Hirokazu Ueda, Masahiro Oka, Masahiro Horigome, Yuuki Kobayashi
  • Publication number: 20140357068
    Abstract: A plasma doping apparatus which performs doping by injecting dopants into a substrate to be processed. The apparatus includes a processing container, a gas supplying unit configured to supply a doping gas and an inert gas for plasma excitation into the processing container, a holding table configured to hold the substrate to be processed, a plasma generating mechanism configured to generate plasma in the processing container using a microwave, a pressure adjusting mechanism configured to adjust a pressure in the processing container, and a control unit configured to control the plasma doping apparatus. The control unit controls the pressure adjusting mechanism to set the pressure in the processing container to be equal to or more than 100 mTorr and less than 500 mTorr such that a plasma processing is performed on the substrate to be processed using the plasma generated by the plasma generating mechanism.
    Type: Application
    Filed: October 19, 2012
    Publication date: December 4, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Masahiro Horigome, Hirokazu Ueda, Masahiro Oka, Yuuki Kobayashi, Takayuki Karakawa
  • Publication number: 20140356984
    Abstract: A method of doping a non-planar surface or a surface of a substrate subject to poor view factors is provided. The processing chamber comprises a window, walls, and a bottom of the processing chamber with oxygen-containing material, the processing chamber configured to supply oxygen radicals as an additive to doping materials. One or more quartz pieces are placed inside the processing chamber, where a magnet proximate to the processing chamber is configured to create a local magnetron plasma inside the processing chamber. Process gas containing an inert gas, sublimated doping materials, and optionally oxygen gas is flowed into the processing chamber; energy is applied to the process gas, generating a doping plasma used to expose a portion of the substrate surface while controlling operating variables to achieve target uniformity of dopant concentration, sheet resistance, degree of dopant clustering, and erosion of features on the substrate.
    Type: Application
    Filed: November 8, 2013
    Publication date: December 4, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Peter L. G. Ventzek, Yuuki Kobayashi
  • Patent number: 8889534
    Abstract: A method of doping a non-planar surface or a surface of a substrate subject to poor view factors is provided. The processing chamber comprises a window, walls, and a bottom of the processing chamber with oxygen-containing material, the processing chamber configured to supply oxygen radicals as an additive to doping materials. One or more quartz pieces are placed inside the processing chamber, where a magnet proximate to the processing chamber is configured to create a local magnetron plasma inside the processing chamber. Process gas containing an inert gas, sublimated doping materials, and optionally oxygen gas is flowed into the processing chamber; energy is applied to the process gas, generating a doping plasma used to expose a portion of the substrate surface while controlling operating variables to achieve target uniformity of dopant concentration, sheet resistance, degree of dopant clustering, and erosion of features on the substrate.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: November 18, 2014
    Assignee: Tokyo Electron Limited
    Inventors: Peter L. G. Ventzek, Yuuki Kobayashi
  • Publication number: 20140302666
    Abstract: A method and apparatus for doping a surface of a substrate with a dopant, with the dopant being for example phosphine or arsine. The doping is performed with a plasma formed primarily of an inert gas such as helium or argon, with a low concentration of the dopant. To provide conformal doping, preferably to form a monolayer of the dopant, the gas flow introduction location is switched during the doping process, with the gas mixture primarily introduced through a center top port in the process chamber during a first period of time followed by introduction of the gas mixture primarily through peripheral or edge injection ports for a second period of time, with the switching continuing in an alternating fashion as the plasma process.
    Type: Application
    Filed: April 3, 2014
    Publication date: October 9, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Peter VENTZEK, Takenao NEMOTO, Hirokazu UEDA, Yuuki KOBAYASHI, Masahiro HORIGOME
  • Publication number: 20140179028
    Abstract: Disclosed is a plasma doping apparatus provided with a plasma generating mechanism. The plasma generating mechanism includes a microwave generator that generates microwave for plasma excitation, a dielectric window that transmits the microwave generated by the microwave generator into a processing container, and a radial line slot antenna formed with a plurality of slots. The radial line slot antenna radiates the microwave to the dielectric window. A control unit controls the plasma doping apparatus such that a doping gas and a gas for plasma excitation are supplied into the processing container by a gas supply unit in a state where the substrate is placed on a holding unit, and then plasma is generated by the plasma generating mechanism to perform doping on the substrate such that the concentration of the dopant implanted into the substrate is less than 1×1013 atoms/cm2.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 26, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Hirokazu UEDA, Masahiro OKA, Masahiro HORIGOME, Yuuki KOBAYASHI
  • Publication number: 20140094024
    Abstract: Disclosed is a plasma doping apparatus including a processing chamber, a substrate holding unit, a plasma generating mechanism, a pressure control mechanism, a bias power supply mechanism, and a control unit. The control unit controls the pressure within the processing chamber to be a first pressure and controls the bias power to be supplied to the holding unit is to be a first bias power for a first plasma process. The control unit also controls the pressure within the processing chamber to be a second pressure which is higher than the first pressure, and controls the bias power to be supplied to the holding unit to be a second bias power which is lower than the first bias power for a second plasma process.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 3, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Masahiro OKA, Yuuki KOBAYASHI, Hirokazu UEDA, Masahiro HORIGOME
  • Patent number: D606100
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: December 15, 2009
    Assignee: Komatsu Ltd.
    Inventors: Yuuki Kobayashi, Misao Kato, Takashi Ohtsu, Hayato Kinoshita
  • Patent number: D606566
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: December 22, 2009
    Assignee: Komatsu Ltd.
    Inventors: Yuuki Kobayashi, Misao Kato, Takashi Ohtsu, Hayato Kinoshita
  • Patent number: D606567
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: December 22, 2009
    Assignee: Komatsu Ltd.
    Inventors: Yuuki Kobayashi, Misao Kato, Takashi Ohtsu, Hayato Kinoshita
  • Patent number: D671565
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: November 27, 2012
    Assignee: Komatsu Ltd.
    Inventors: Hayato Kinoshita, Yuuki Kobayashi, Genichiro Watanabe