Patents by Inventor Hiroki Matsumaru

Hiroki Matsumaru 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: 8142609
    Abstract: A plasma processing apparatus including a mounting table that includes a mounting table body having a temperature adjusted to be a predetermined level, and an electrostatic chuck disposed on an upper portion of the mounting table body, joined thereto with an acrylic adhesive having a thickness of 60 ?m or more, to adsorb the substrate thereon. The apparatus further including first and second heat transfer gas diffusion regions formed at a center and a circumferential edge, respectively, of an upper surface of the electrostatic chuck, and first and second heat transfer gas supply units to supply heat transfer gas to the first and second heat transfer gas diffusion regions, respectively. A volume ratio of the second heat transfer gas diffusion region to the first heat transfer gas diffusion region is equal to or less than 0.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: March 27, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Syuichi Takahashi, Hiroki Matsumaru, Nobutaka Nakao, Kenji Komatsu
  • Publication number: 20110162802
    Abstract: A plasma processing apparatus for performing a plasma process on a target substrate includes a process container configured to accommodate the target substrate and to reduce pressure therein. A first electrode is disposed within the process container. A supply system is configured to supply a process gas into the process container. An electric field formation system is configured to form an RF electric field within the process container so as to generate plasma of the process gas. A number of protrusions are discretely disposed on a main surface of the first electrode and protrude toward a space where the plasma is generated.
    Type: Application
    Filed: March 16, 2011
    Publication date: July 7, 2011
    Inventors: Katsuya OKUMURA, Shinji HIMORI, Kazuya NAGASEKI, Hiroki MATSUMARU, Shoichiro MATSUYAMA, Toshiki TAKAHASHI
  • Patent number: 7922862
    Abstract: A plasma processing apparatus for performing a plasma process on a target substrate includes a process container configured to accommodate the target substrate and to reduce pressure therein. A first electrode is disposed within the process container. A supply system is configured to supply a process gas into the process container. An electric field formation system is configured to form an RF electric field within the process container so as to generate plasma of the process gas. A number of protrusions are discretely disposed on a main surface of the first electrode and protrude toward a space where the plasma is generated.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: April 12, 2011
    Assignees: Octec Inc., Tokyo Electron Limited
    Inventors: Katsuya Okumura, Shinji Himori, Kazuya Nagaseki, Hiroki Matsumaru, Shoichiro Matsuyama, Toshiki Takahashi
  • Patent number: 7767055
    Abstract: A capacitive coupling plasma processing apparatus includes a process chamber configured to have a vacuum atmosphere, and a process gas supply section configured to supply a process gas into the chamber. In the chamber, a first electrode and a second electrode are disposed opposite each other. An RF power supply is disposed to supply an RF power to the first or second electrode to form an RF electric field within a plasma generation region between the first and second electrodes, so as to turn the process gas into plasma. The target substrate is supported by a support member between the first and second electrodes such that a process target surface thereof faces the second electrode. A conductive functional surface is disposed in a surrounding region around the plasma generation region and grounded to be coupled with the plasma in a sense of DC to expand the plasma.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: August 3, 2010
    Assignees: Tokyo Electron Limited, Kabushiki Kaisha Toshiba
    Inventors: Shinji Himori, Noriaki Imai, Katsumi Horiguchi, Takaaki Nezu, Shoichiro Matsuyama, Hiroki Matsumaru, Toshihiro Hayami, Kazuya Nagaseki, Itsuko Sakai, Tokuhisa Ohiwa, Yoshikazu Sugiyasu
  • Publication number: 20090285998
    Abstract: A plasma processing apparatus for performing a plasma process on a target substrate includes a process container configured to accommodate the target substrate and to reduce pressure therein. A first electrode is disposed within the process container. A supply system is configured to supply a process gas into the process container. An electric field formation system is configured to form an RF electric field within the process container so as to generate plasma of the process gas. A number of protrusions are discretely disposed on a main surface of the first electrode and protrude toward a space where the plasma is generated.
    Type: Application
    Filed: July 20, 2009
    Publication date: November 19, 2009
    Applicants: Octec Inc., TOKYO ELECTRON LIMITED
    Inventors: Katsuya Okumura, Shinji Himori, Kazuya Nagaseki, Hiroki Matsumaru, Shoichiro Matsuyama, Toshiki Takahashi
  • Patent number: 7585386
    Abstract: A plasma processing apparatus for performing a plasma process on a target substrate includes a process container configured to accommodate the target substrate and to reduce pressure therein. A first electrode is disposed within the process container. A supply system is configured to supply a process gas into the process container. An electric field formation system is configured to form an RF electric field within the process container so as to generate plasma of the process gas. A number of protrusions are discretely disposed on a main surface of the first electrode and protrude toward a space where the plasma is generated.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: September 8, 2009
    Assignees: Octec Inc., Tokyo Electron Limited
    Inventors: Katsuya Okumura, Shinji Himori, Kazuya Nagaseki, Hiroki Matsumaru, Shoichiro Matsuyama, Toshiki Takahashi
  • Publication number: 20080308230
    Abstract: A plasma processing apparatus 1, in which a substrate W is mounted on a mounting table 11 in a processing chamber 10 and processing gas supplied in the processing chamber 10 is made into plasma to a perform plasma treatment on the substrate W, wherein the mounting table 11 has a mounting table body 12 having a temperature adjusted to be a predetermined level, and an electrostatic chuck 13 disposed on an upper portion of the mounting table body 12 and adsorbing the substrate W thereon; a first heat transfer gas diffusion region 47 is formed at a center of an upper surface of the electrostatic chuck 13 and a second heat transfer gas diffusion region 48 is formed at a circumferential edge of the upper surface of the electrostatic chuck 13; a first heat transfer gas supply unit 51 supplying heat transfer gas to the first heat transfer gas diffusion region 47 and a second heat transfer gas supply unit 52 supplying heat transfer gas to the second heat transfer gas diffusion region 48 are included; and a volume rati
    Type: Application
    Filed: March 26, 2008
    Publication date: December 18, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Syuichi TAKAHASHI, Hiroki Matsumaru, Nobutaka Nakao, Kenji Komatsu
  • Publication number: 20080242086
    Abstract: A plasma processing method, for performing a plasma process on a target substrate by generating a plasma between an upper electrode and a lower electrode facing each other by means of applying a radio frequency power therebetween, includes applying a DC voltage of a positive or negative polarity to an inner electrode of an electrostatic chuck on the lower electrode to attract and hold the target substrate thereon; and changing the positive or negative polarity of the DC voltage applied to the inner electrode of the electrostatic chuck to an opposite polarity thereto between a time when the application of the radio frequency power from the radio frequency power supply is started to perform the plasma process of the target substrate and a time when the plasma process is completed.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 2, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Hiroki MATSUMARU, Nobutaka Nakao, Kenji Komatsu, Syuichi Takahashi
  • Publication number: 20060118044
    Abstract: A capacitive coupling plasma processing apparatus includes a process chamber configured to have a vacuum atmosphere, and a process gas supply section configured to supply a process gas into the chamber. In the chamber, a first electrode and a second electrode are disposed opposite each other. An RF power supply is disposed to supply an RF power to the first or second electrode to form an RF electric field within a plasma generation region between the first and second electrodes, so as to turn the process gas into plasma. The target substrate is supported by a support member between the first and second electrodes such that a process target surface thereof faces the second electrode. A conductive functional surface is disposed in a surrounding region around the plasma generation region and grounded to be coupled with the plasma in a sense of DC to expand the plasma.
    Type: Application
    Filed: December 2, 2005
    Publication date: June 8, 2006
    Inventors: Shinji Himori, Noriaki Imai, Katsumi Horiguchi, Takaaki Nezu, Shoichiro Matsuyama, Hiroki Matsumaru, Toshihiro Hayami, Kazuya Nagaseki, Itsuko Sakai, Tokuhisa Ohiwa, Yoshikazu Sugiyasu
  • Publication number: 20050276928
    Abstract: A plasma processing apparatus for performing a plasma process on a target substrate includes a process container configured to accommodate the target substrate and to reduce pressure therein. A first electrode is disposed within the process container. A supply system is configured to supply a process gas into the process container. An electric field formation system is configured to form an RF electric field within the process container so as to generate plasma of the process gas. A number of protrusions are discretely disposed on a main surface of the first electrode and protrude toward a space where the plasma is generated.
    Type: Application
    Filed: August 3, 2005
    Publication date: December 15, 2005
    Applicants: Octec Inc., TOKYO ELECTRON LIMITED
    Inventors: Katsuya Okumura, Shinji Himori, Kazuya Nagaseki, Hiroki Matsumaru, Shoichiro Matsuyama, Toshiki Takahashi