Patents by Inventor Kazunori Nakamoto

Kazunori Nakamoto 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: 11424106
    Abstract: Provided is a technique capable of reducing a variation in processing in an in-plane direction of a sample and improving a yield of processing. A plasma processing apparatus 1 includes a first electrode (a base material 110B) disposed in a sample stage 110, a ring-shaped second electrode (a conductive ring 114) disposed surrounding an outer peripheral side of an upper surface portion 310 (a dielectric film portion 110A) of the sample stage 110, a dielectric ring-shaped member (a susceptor ring 113) that covers the second electrode and is disposed surrounding an outer periphery of the upper surface portion 310, a plurality of power supply paths that supply high frequency power from a high frequency power supply to the first electrode and the second electrode respectively, and a matching device 117 disposed on a power supply path to the second electrode.
    Type: Grant
    Filed: May 28, 2018
    Date of Patent: August 23, 2022
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Yuki Kondo, Kenetsu Yokogawa, Masahito Mori, Satoshi Une, Kazunori Nakamoto
  • Patent number: 11315759
    Abstract: A plasma processing apparatus includes a processing chamber in which a wafer 1 is processed by using plasma, a radio-frequency power supply that supplies radio-frequency power for generating the plasma, a sample table 2 which is arranged in the processing chamber and in which the wafer 1 is mounted, and a DC power supply 106 which is electrically connected to the sample table 2 and which causes the sample table 2 to generate a suction force. The sample table 2 includes a protruded portion 201a that sucks the wafer 1 by the suction force and a level different portion 201b protruding from a lower portion of the protruded portion 201a. A ring 5 that can be in contact with a lower surface of the wafer 1 is provided outside the protruded portion 201a. A space portion 7 formed by the wafer 1, the protruded portion 201a, and the ring 5 is sealed in a state in which the wafer 1 is sucked to an upper surface of the protruded portion 201a of the sample table 2.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: April 26, 2022
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Takamasa Ichino, Kohei Sato, Kazunori Nakamoto
  • Publication number: 20210233744
    Abstract: A plasma processing apparatus includes a processing chamber in which a wafer 1 is processed by using plasma, a radio-frequency power supply that supplies radio-frequency power for generating the plasma, a sample table 2 which is arranged in the processing chamber and in which the wafer 1 is mounted, and a DC power supply 106 which is electrically connected to the sample table 2 and which causes the sample table 2 to generate a suction force. The sample table 2 includes a protruded portion 201a that sucks the wafer 1 by the suction force and a level different portion 201b protruding from a lower portion of the protruded portion 201a. A ring 5 that can be in contact with a lower surface of the wafer 1 is provided outside the protruded portion 201a. A space portion 7 formed by the wafer 1, the protruded portion 201a, and the ring 5 is sealed in a state in which the wafer 1 is sucked to an upper surface of the protruded portion 201a of the sample table 2.
    Type: Application
    Filed: February 8, 2019
    Publication date: July 29, 2021
    Inventors: Takamasa ICHINO, Kohei SATO, Kazunori NAKAMOTO
  • Publication number: 20210111002
    Abstract: Provided is a technique capable of reducing a variation in processing in an in-plane direction of a sample and improving a yield of processing. A plasma processing apparatus 1 includes a first electrode (a base material 110B) disposed in a sample stage 110, a ring-shaped second electrode (a conductive ring 114) disposed surrounding an outer peripheral side of an upper surface portion 310 (a dielectric film portion 110A) of the sample stage 110, a dielectric ring-shaped member (a susceptor ring 113) that covers the second electrode and is disposed surrounding an outer periphery of the upper surface portion 310, a plurality of power supply paths that supply high frequency power from a high frequency power supply to the first electrode and the second electrode respectively, and a matching device 117 disposed on a power supply path to the second electrode.
    Type: Application
    Filed: May 28, 2018
    Publication date: April 15, 2021
    Inventors: Yuki KONDO, Kenetsu YOKOGAWA, Masahito MORI, Satoshi UNE, Kazunori NAKAMOTO
  • Patent number: 10796890
    Abstract: There is disclosed a plasma processing apparatus for processing a wafer put on a sample stage disposed in a processing chamber within a vacuum vessel by the use of a plasma generated in the processing chamber after mounting the wafer on the sample stage. The apparatus has heaters in areas of the interior of the sample stage which are divided radially and circumferentially. At least those of the heaters which are arranged in the areas located in the radially outer position include circumferentially arranged heater portions that are connected in series. The amounts of heat generated by these circumferentially arranged heater portions are adjusted.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: October 6, 2020
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Hironori Kusumoto, Yutaka Ohmoto, Kazunori Nakamoto, Koji Nagai
  • Patent number: 10763088
    Abstract: Provided is a vacuum processing apparatus that improves an operation rate or efficiency of processing.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: September 1, 2020
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Takashi Uemura, Takamasa Ichino, Kazunori Nakamoto, Kohei Sato
  • Publication number: 20200083026
    Abstract: A plasma processing device in which plasma processing uniformity is improved up to an outer peripheral portion of a wafer and the number of non-defective devices that can be manufactured from one wafer is increased. The plasma processing device includes a vacuum container; a mounting table, a susceptor ring that covers an outer peripheral portion of an electrode base material, and an insulation ring covered by the susceptor ring and surrounding the electrode base material, and thin film electrode formed on an upper surface and a part of a surface facing the outer periphery of the electrode base material; a first high frequency power applied to the electrode base material a second high frequency power applied to the thin film electrode; a plasma generating unit that generates plasma on an upper portion of the mounting table inside the vacuum container; and a control unit.
    Type: Application
    Filed: September 5, 2019
    Publication date: March 12, 2020
    Inventors: Takamasa ICHINO, Kohei SATO, Kazunori NAKAMOTO, Kenetsu YOKOGAWA
  • Publication number: 20190267219
    Abstract: Provided is a vacuum processing apparatus that improves an operation rate or efficiency of processing.
    Type: Application
    Filed: August 24, 2018
    Publication date: August 29, 2019
    Inventors: Takashi UEMURA, Takamasa ICHINO, Kazunori NAKAMOTO, Kohei SATO
  • Publication number: 20190057846
    Abstract: There is disclosed a plasma processing apparatus for processing a wafer put on a sample stage disposed in a processing chamber within a vacuum vessel by the use of a plasma generated in the processing chamber after mounting the wafer on the sample stage. The apparatus has heaters in areas of the interior of the sample stage which are divided radially and circumferentially. At least those of the heaters which are arranged in the areas located in the radially outer position include circumferentially arranged heater portions that are connected in series. The amounts of heat generated by these circumferentially arranged heater portions are adjusted.
    Type: Application
    Filed: October 24, 2018
    Publication date: February 21, 2019
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Hironori Kusumoto, Yutaka Ohmoto, Kazunori Nakamoto, Koji Nagai
  • Patent number: 10141165
    Abstract: There is disclosed a plasma processing apparatus for processing a wafer put on a sample stage disposed in a processing chamber within a vacuum vessel by the use of a plasma generated in the processing chamber after mounting the wafer on the sample stage. The apparatus has heaters in areas of the interior of the sample stage which are divided radially and circumferentially. At least those of the heaters which are arranged in the areas located in the radially outer position include circumferentially arranged heater portions that are connected in series. The amounts of heat generated by these circumferentially arranged heater portions are adjusted.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: November 27, 2018
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Hironori Kusumoto, Yutaka Ohmoto, Kazunori Nakamoto, Koji Nagai
  • Patent number: 9384946
    Abstract: In a plasma processing apparatus having a processing chamber, a sample stage, a sample, a dielectric-composed insulating film and an electrode, the sample stage can be divided into an upper member and a lower member, the upper member including the insulating film and an electrode, the apparatus includes a socket which is deployed inside a through hole of the upper member, and which is electrically connected to the electrode, a pin which is brought into contact with the socket by being inserted into the socket, and a seal member which is attached onto the socket in order to implement a hermetic sealing between the upper-member side and the lower-member side inside the through hole, the upper-member side being continuously linked to the decompressed processing chamber, the lower-member side being continuously linked to the substantially-atmospheric-pressure side which is the outside of the processing chamber.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: July 5, 2016
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Kohei Sato, Kazunori Nakamoto, Yutaka Ohmoto
  • Publication number: 20160155617
    Abstract: There is disclosed a plasma processing apparatus for processing a wafer put on a sample stage disposed in a processing chamber within a vacuum vessel by the use of a plasma generated in the processing chamber after mounting the wafer on the sample stage. The apparatus has heaters in areas of the interior of the sample stage which are divided radially and circumferentially. At least those of the heaters which are arranged in the areas located in the radially outer position include circumferentially arranged heater portions that are connected in series. The amounts of heat generated by these circumferentially arranged heater portions are adjusted.
    Type: Application
    Filed: February 5, 2016
    Publication date: June 2, 2016
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Hironori Kusumoto, Yutaka Ohmoto, Kazunori Nakamoto, Koji Nagai
  • Patent number: 9343336
    Abstract: In a plasma processing apparatus including a processing room disposed in a vacuum vessel, a sample stage located in the processing room, a dielectric film disposed on the top surface of the sample stage and serving as the sample mounting surface of the sample stage, and a plurality of electrodes embedded in the dielectric film for chucking the sample to the dielectric film when supplied with electric power, a part of the sample is chucked by supplying electric power to at least one of the electrodes while the sample is mounted on the sample stage; the sample is heated up to a predetermined temperature; a larger part of the sample is chucked by supplying electric power to the other of the electrodes; and the processing of the sample using the plasma is initiated.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: May 17, 2016
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Kohei Sato, Kazunori Nakamoto, Yutaka Omoto
  • Publication number: 20150083329
    Abstract: In a plasma processing apparatus including a processing room disposed in a vacuum vessel, a sample stage located in the processing room, a dielectric film disposed on the top surface of the sample stage and serving as the sample mounting surface of the sample stage, and a plurality of electrodes embedded in the dielectric film for chucking the sample to the dielectric film when supplied with electric power, a part of the sample is chucked by supplying electric power to at least one of the electrodes while the sample is mounted on the sample stage; the sample is heated up to a predetermined temperature; a larger part of the sample is chucked by supplying electric power to the other of the electrodes; and the processing of the sample using the plasma is initiated.
    Type: Application
    Filed: December 2, 2014
    Publication date: March 26, 2015
    Inventors: Kohei SATO, Kazunori NAKAMOTO, Yutaka OMOTO
  • Patent number: 8920665
    Abstract: In a plasma processing apparatus including a processing room disposed in a vacuum vessel, a sample stage located in the processing room, a dielectric film disposed on the top surface of the sample stage and serving as the sample mounting surface of the sample stage, and a plurality of electrodes embedded in the dielectric film for chucking the sample to the dielectric film when supplied with electric power, a part of the sample is chucked by supplying electric power to at least one of the electrodes while the sample is mounted on the sample stage; the sample is heated up to a predetermined temperature; a larger part of the sample is chucked by supplying electric power to the other of the electrodes; and the processing of the sample using the plasma is initiated.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: December 30, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Kohei Sato, Kazunori Nakamoto, Yutaka Omoto
  • Patent number: D827592
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: September 4, 2018
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Takamasa Ichino, Kohei Sato, Kazunori Nakamoto
  • Patent number: D836573
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: December 25, 2018
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Takamasa Ichino, Kohei Sato, Kazunori Nakamoto
  • Patent number: D840364
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: February 12, 2019
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Takamasa Ichino, Kohei Sato, Kazunori Nakamoto
  • Patent number: D840365
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: February 12, 2019
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Takamasa Ichino, Kohei Sato, Kazunori Nakamoto
  • Patent number: D1005245
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: November 21, 2023
    Assignee: Hitachi High-Tech Corporation
    Inventors: Shintarou Nakatani, Takamasa Ichino, Kazunori Nakamoto, Yuki Tanaka