Patents by Inventor Masaaki Miyagawa

Masaaki Miyagawa 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: 20080236746
    Abstract: A substrate processing apparatus that can prevent a heat transfer sheet from becoming attached to a focus ring mounting surface of a substrate mounting stage. The substrate mounting stage is disposed in a housing chamber of the substrate processing apparatus, and a substrate is mounted on the substrate mounting stage. A focus ring that surrounds a peripheral portion of the mounted substrate is mounted on the focus ring mounting surface. The heat transfer sheet is interposed between the focus ring and the focus ring mounting surface, and a fluorine coating is formed on the focus ring mounting surface.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 2, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Jun OYABU, Masaaki MIYAGAWA
  • Publication number: 20080239691
    Abstract: A thermally conductive sheet is used between a mounting table for mounting thereon a target substrate and an annular focus ring mounted on the mounting table to surround a circumferential peripheral portion of the target substrate. Further, the mounting table includes therein a cooling unit and is disposed in a depressurized accommodating chamber for accommodating therein the target substrate. The thermally conductive sheet has a non-adhesive layer on each of one or more surfaces thereof.
    Type: Application
    Filed: March 26, 2008
    Publication date: October 2, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Masaaki MIYAGAWA, Akihiro YOSHIMURA
  • Publication number: 20080210379
    Abstract: A substrate processing apparatus that can reliably improve the efficiency of heat transfer between a focus ring and a mounting stage. A housing chamber with the interior thereof evacuated houses a substrate. The substrate is mounted on a mounting stage that is disposed in the housing chamber. An annular focus ring is mounted on the mounting stage such as to surround a peripheral portion of the mounted substrate. A heat transfer film is formed on a surface of the focus ring which contacts the mounting stage by printing processing.
    Type: Application
    Filed: January 18, 2008
    Publication date: September 4, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Masaaki MIYAGAWA, Eiichi Nishimura
  • Publication number: 20080166894
    Abstract: A focus ring heat transfer method improves heat transfer of a focus ring arranged in an outer peripheral portion of a mounting surface of a mounting table adapted to mount a target substrate in a chamber. The method includes steps of: disposing a heat transfer sheet between the focus ring and the mounting table; and vacuum-evacuating the chamber prior to processing the target substrate and then restoring the pressure the inside of the chamber to an atmospheric pressure or a light vacuum pressure. Therefore, air present in a fine gap between the heat transfer sheet and the mounting surface is removed to allow the heat transfer sheet to adhere to the mounting surface.
    Type: Application
    Filed: January 8, 2008
    Publication date: July 10, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Masaaki MIYAGAWA, Akihiro Yoshimura
  • Publication number: 20080006207
    Abstract: A heat-transfer structure which can keep a consumable component at a temperature of 225° C. or less during etching of a substrate. The heat-transfer structure is disposed in a chamber where plasma processing is performed on a wafer as the substrate under a reduced pressure. The heat-transfer structure is comprised of a focus ring having an exposed surface exposed to plasma, a susceptor and an electrostatic chuck that cool the consumable component, and a heat-transfer sheet interposed between the focus ring and the electrostatic chuck and made of a gel-like material. The ratio of hardness of the heat-transfer sheet expressed in Asker C to thermal conductivity of the heat-transfer sheet expressed in W/m·K is less than 20.
    Type: Application
    Filed: July 6, 2007
    Publication date: January 10, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Masaaki Miyagawa, Tetsuji Sato
  • Publication number: 20070169891
    Abstract: A focus ring and a plasma processing apparatus capable of improving an in-surface uniformity of a surface and reducing occurrences of deposition on a backside surface of a peripheral portion of a semiconductor wafer compared to a conventional case are provided. Installed in a vacuum chamber is a susceptor for mounting the semiconductor wafer thereon and a focus ring is installed to surround the semiconductor wafer mounted on the susceptor. The focus ring includes an annular lower member made of a dielectric, and an annular upper member made of a conductive material and mounted on the lower member. The upper member includes a flat portion which is an outer peripheral portion having a top surface positioned higher than a surface to be processed of the semiconductor wafer W, and an inclined portion which is an inner peripheral portion inclined inwardly.
    Type: Application
    Filed: September 3, 2004
    Publication date: July 26, 2007
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Akira Koshiishi, Hideaki Tanaka, Nobuyuki Okayama, Masaaki Miyagawa, Shunsuke Mizukami, Wataru Shimizu, Jun Hirose, Toshikatsu Wakaki, Tomonori Miwa, Jun Ooyabu, Daisuke Hayashi
  • Publication number: 20040053186
    Abstract: An heating apparatus capable of efficiently heating an object having a complex surface configuration and fluids such as gases or liquids, and being simple, easy to handle, and usable in sites for emergency medical treatments such as blood transfusion is provided. The heating apparatus includes a flexible, thermal conductive member to contact with a heater, and is capable of efficiently heating an object being heated by bringing the object into contact with the thermal conductive member to have the thermal conductive member following a surface configuration of the object and closely contacting the object without a gap therebetween.
    Type: Application
    Filed: August 25, 2003
    Publication date: March 18, 2004
    Inventor: Masaaki Miyagawa