Patents by Inventor Kazuyoshi Matsuzaki

Kazuyoshi Matsuzaki 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: 8636871
    Abstract: A plasma processing apparatus includes a first electrode and a second electrode so arranged in the upper portion of a processing chamber as to face a mounting table, a gas supply unit for supplying a processing gas between the first electrode and the second electrode, a RF power supply unit for applying a RF power between the first electrode and the second electrode for converting the process gas supplied between the electrodes into a plasma, and a gas exhaust unit for evacuating the inside of the processing chamber to a vacuum level from the lower portion of the processing chamber. Since the electron temperature in the plasma is low near a substrate on the mounting table, damage to the substrate caused by the plasma can be suppressed. In addition, since a metal can be used as a material for the processing chamber, the processing chamber can have good temperature controllability.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: January 28, 2014
    Assignee: Tokyo Electron Limited
    Inventors: Ikuo Sawada, Peter Ventzek, Tatsuro Ohshita, Kazuyoshi Matsuzaki, Songyun Kang
  • Publication number: 20130011555
    Abstract: The invention is a coating apparatus including: a substrate-holding part that holds a substrate horizontally; a chemical nozzle that supplies a chemical to a central portion of the substrate horizontally held by the substrate-holding part; a rotation mechanism that causes the substrate-holding part to rotate to thereby spread out the chemical on a surface of the substrate by centrifugal force, for coating the whole surface with the chemical; a gas-flow-forming unit that forms a down flow of an atmospheric gas on the surface of the substrate horizontally held by the substrate-holding part; a gas-discharging unit that discharges an atmosphere around the substrate; and a gas nozzle that supplies a laminar-flow-forming gas to the surface of the substrate, the laminar-flow-forming gas having a coefficient of kinematic viscosity larger than that of the atmospheric gas; wherein the atmospheric gas or the laminar-flow-forming gas are supplied to the central portion of the substrate.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 10, 2013
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Ikuo SAWADA, Kazuyoshi MATSUZAKI, Takashi TANAKA, Mitsuaki IWASHITA, Mizue MUNAKATA
  • Publication number: 20120204576
    Abstract: A cooling unit for cooling a target object to a target temperature includes a decompression chamber thermally connected to the target object; a spraying part which sprays a liquid heat medium having a temperature equal to or lower than the target temperature to an inner surface of the decompression chamber; and an electric field generator which generates an electric field such that the heat medium sprayed from the spraying part is attached to the inner surface of the decompression chamber. The cooling unit further includes an exhaust part which evacuates the decompression chamber such that a pressure in the decompression chamber is equal to or lower than a saturated vapor pressure of the heat medium at the target temperature.
    Type: Application
    Filed: February 14, 2012
    Publication date: August 16, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kazuyoshi MATSUZAKI, Junji OIKAWA, Sumie NAGASEKI
  • Publication number: 20120043024
    Abstract: There is provided a substrate processing apparatus including: a chamber in which plasma processing is performed on a substrate; a susceptor which is disposed in the chamber and on which the substrate is held; a shower head which is provided to face the susceptor with a processing space therebetween; a high frequency power source which generates plasma by applying high frequency power to the processing space; water spray devices which form a surface wet with water on a rear surface of a surface of the susceptor as a temperature adjustment surface; an evaporation chamber which isolates the wet surface from an atmosphere around the wet surface; and a pressure adjustment device which adjusts a pressure in the evaporation chamber, wherein the pressure in the evaporation chamber is adjusted by using the pressure adjustment device such that the water which forms the wet surface is evaporated, thereby controlling a temperature of the surface of the susceptor by using latent heat of evaporation of the water.
    Type: Application
    Filed: August 19, 2011
    Publication date: February 23, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Yasuharu SASAKI, Eiichiro KIKUCHI, Kazuyoshi MATSUZAKI
  • Publication number: 20120016508
    Abstract: A semiconductor fabrication apparatus includes a semiconductor wafer mounting table having a cavity therein; and a nozzle which jets a liquefied temperature adjustment medium having a temperature equal to or less than a targeted temperature to an inner wall of the cavity in order to adjust a temperature of the semiconductor wafer mounting table to the targeted temperature. The semiconductor fabrication apparatus further includes a pressure detecting unit for detecting an internal pressure of the cavity; and a vacuum pump which discharges gas within the cavity such that a pressure detected by the pressure detecting unit becomes equal to or more than a saturated vapor pressure related to the temperature of the temperature adjustment medium jetted from the nozzle and equal to or less than a saturated vapor pressure related to the targeted temperature.
    Type: Application
    Filed: March 29, 2010
    Publication date: January 19, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kazuyoshi Matsuzaki, Sumie Nagaseki
  • Publication number: 20100006543
    Abstract: A plasma processing apparatus includes a first electrode and a second electrode so arranged in the upper portion of a processing chamber as to face a mounting table, a gas supply unit for supplying a processing gas between the first electrode and the second electrode, a RF power supply unit for applying a RF power between the first electrode and the second electrode for converting the process gas supplied between the electrodes into a plasma, and a gas exhaust unit for evacuating the inside of the processing chamber to a vacuum level from the lower portion of the processing chamber. Since the electron temperature in the plasma is low near a substrate on the mounting table, damage to the substrate caused by the plasma can be suppressed. In addition, since a metal can be used as a material for the processing chamber, the processing chamber can have good temperature controllability.
    Type: Application
    Filed: December 27, 2007
    Publication date: January 14, 2010
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Ikuo Sawada, Peter Ventzek, Tatsuro Ohshita, Kazuyoshi Matsuzaki, Songyun Kang
  • Publication number: 20090162547
    Abstract: The invention is a coating apparatus including: a substrate-holding part that holds a substrate horizontally; a chemical nozzle that supplies a chemical to a central portion of the substrate horizontally held by the substrate-holding part; a rotation mechanism that causes the substrate-holding part to rotate in order to spread out the chemical on a surface of the substrate by a centrifugal force, for coating the whole surface with the chemical; a gas-flow-forming unit that forms a down flow of an atmospheric gas on the surface of the substrate horizontally held by the substrate-holding part; a gas-discharging unit that discharges an atmosphere around the substrate; and a gas nozzle that supplies a laminar-flow-forming gas to the surface of the substrate, the laminar-flow-forming gas having a coefficient of kinematic viscosity larger than that of the atmospheric gas; wherein the atmospheric gas or the laminar-flow-forming gas are supplied to the central portion of the substrate.
    Type: Application
    Filed: December 15, 2006
    Publication date: June 25, 2009
    Inventors: Ikuo Sawada, Kazuyoshi Matsuzaki, Takashi Tanaka, Mitsuaki Iwashita, Mizue Munakata