Patents by Inventor Hiroki Murooka

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

  • Patent number: 11107659
    Abstract: There is provided an ion generator including a vapor generating chamber for generating a vapor by heating a raw material in which a first solid material which is a single substance of an impurity element and a second solid material which is a compound containing the impurity element are mixed with each other, and a plasma generating chamber for generating a plasma containing ions of the impurity element by using the vapor.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: August 31, 2021
    Assignee: SUMITOMO HEAVY INDUSTRIES ION TECHNOLOGY CO., LTD.
    Inventor: Hiroki Murooka
  • Publication number: 20210020403
    Abstract: There is provided an ion generator including a vapor generating chamber for generating a vapor by heating a raw material in which a first solid material which is a single substance of an impurity element and a second solid material which is a compound containing the impurity element are mixed with each other, and a plasma generating chamber for generating a plasma containing ions of the impurity element by using the vapor.
    Type: Application
    Filed: July 15, 2020
    Publication date: January 21, 2021
    Inventor: Hiroki Murooka
  • Patent number: 9312163
    Abstract: An electrostatic chuck protection method includes providing an exposed chuck surface with a protective surface for preventing adherence of foreign materials including a substance exhibiting volatility in a vacuum environment, and removing the protective surface in order to perform a process of forming a substrate electrostatically held on the chuck surface with a surface layer including a substance having volatility in a vacuum chamber. The protective surface may be provided when a low vacuum pumping mode of operation is performed in a vacuum environment surrounding the chuck surface.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: April 12, 2016
    Assignees: SUMITOMO HEAVY INDUSTRIES, LTD., SEN CORPORATION
    Inventors: Masaru Tanaka, Masashi Kuriyama, Hiroki Murooka
  • Publication number: 20130019797
    Abstract: An electrostatic chuck protection method includes providing an exposed chuck surface with a protective surface for preventing adherence of foreign materials including a substance exhibiting volatility in a vacuum environment, and removing the protective surface in order to perform a process of forming a substrate electrostatically held on the chuck surface with a surface layer including a substance having volatility in a vacuum chamber. The protective surface may be provided when a low vacuum pumping mode of operation is performed in a vacuum environment surrounding the chuck surface.
    Type: Application
    Filed: July 13, 2012
    Publication date: January 24, 2013
    Applicants: SEN CORPORATION, SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Masaru Tanaka, Masashi Kuriyama, Hiroki Murooka
  • Publication number: 20120015507
    Abstract: A plasma doping apparatus for adding an impurity to a semiconductor substrate includes a chamber, a gas supply unit configured for supplying gas to the chamber, and a plasma source by which to cause the chamber to generate plasma of the supplied gas. The mixed gas containing material gas containing an impurity element to be added to the semiconductor substrate, hydrogen gas, and diluent gas for diluting the material gas is supplied to the chamber.
    Type: Application
    Filed: July 15, 2011
    Publication date: January 19, 2012
    Applicants: SEN CORPORATION, SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Masaru Tanaka, Masashi Kuriyama, Hiroki Murooka
  • Patent number: 6797968
    Abstract: An ion beam processing apparatus comprises a beam line vacuum chamber from an ion source to a processing chamber. The apparatus further comprises a beam line structure for transporting ion beam from the ion source through the beam line vacuum chamber to the processing chamber. A mass analysis magnet unit is arranged from the outside in a partial section of the beam line vacuum chamber. An effective magnetic field area of the mass analysis magnet unit is disposed in a partial section of the beam line structure. Continuous cusp field forming magnet apparatuses are arranged at the series of beam line vacuum chamber part of the beam line structure to confine ion beam by forming continuous cusp fields.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: September 28, 2004
    Assignee: Sumitomo Eaton Nova Corporation
    Inventors: Mitsukuni Tsukihara, Yoshitaka Amano, Mitsuaki Kabasawa, Michiro Sugitani, Hiroki Murooka, Hiroshi Matsushita
  • Patent number: 6794661
    Abstract: In an ion implantation apparatus according to the present invention, ions are extracted from an ion source with the aid of extraction electrodes. The ions thus extracted are analyzed in mass by means of a mass analysis magnet apparatus and a mass analysis slit, so that the required ions are implanted in a substrate. Magnets for generating cusp magnetic fields are serially disposed along an ion beam line extending from the front part to the rear part of the mass analysis magnet apparatus.
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: September 21, 2004
    Assignee: Sumitomo Eaton Nova Corporation
    Inventors: Mitsukuni Tsukihara, Mitsuaki Kabasawa, Michiro Sugitani, Hiroki Murooka, Hiroshi Matsushita
  • Publication number: 20030122090
    Abstract: An ion beam processing apparatus comprises a beam line vacuum chamber from an ion source to a processing chamber. The apparatus further comprises a beam line structure for transporting ion beam from the ion source through the beam line vacuum chamber to the processing chamber. A mass analysis magnet unit is arranged from the outside in a partial section of the beam line vacuum chamber. An effective magnetic field area of the mass analysis magnet unit is disposed in a partial section of the beam line structure. Continuous cusp field forming magnet apparatuses are arranged at the series of beam line vacuum chamber part of the beam line structure to confine ion beam by forming continuous cusp fields.
    Type: Application
    Filed: December 27, 2002
    Publication date: July 3, 2003
    Applicant: SUMITOMO EATON NOVA CORPORATION
    Inventors: Mitsukuni Tsukihara, Yoshitaka Amano, Mitsuaki Kabasawa, Michiro Sugitani, Hiroki Murooka, Hiroshi Matsushita
  • Publication number: 20020179854
    Abstract: In an ion implantation apparatus according to the present invention, ions are extracted from an ion source with the aid of extraction electrodes. The ions thus extracted are analyzed in mass by means of a mass analysis magnet apparatus and a mass analysis slit, so that the required ions are implanted in a substrate. Magnets for generating cusp magnetic fields are serially disposed along an ion beam line extending from the front part to the rear part of the mass analysis magnet apparatus.
    Type: Application
    Filed: April 9, 2002
    Publication date: December 5, 2002
    Applicant: Sumitomo Eaton Nova Corporation
    Inventors: Mitsukuni Tsukihara, Mitsuaki Kabasawa, Michiro Sugitani, Hiroki Murooka, Hiroshi Matsushita