Patents by Inventor Mitsuru Ushijima

Mitsuru Ushijima 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: 8574676
    Abstract: A substrate processing method includes steps of: arranging a substrate in a chamber; introducing H2 gas at a first flow rate and O2 gas at a second flow rate independently from the H2 gas into a catalyst reaction portion in which catalyst is accommodated, wherein H2O gas produced from the H2 gas and the O2 gas that contact the catalyst is ejected from the catalyst reaction portion toward the substrate; and reducing a flow rate of the O2 gas introduced to the catalyst reaction portion to a third flow rate that is lower than the second flow rate, wherein the steps of introducing the H2 gas and the O2 gas and reducing the flow rate of the O2 gas are repeated in this order at a predetermined repetition frequency, thereby processing the substrate.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: November 5, 2013
    Assignees: National University Corporation Nagaoka University of Technology, Tokyo Electron Limited
    Inventors: Kanji Yasui, Hiroshi Nishiyama, Yasunobu Inoue, Mitsuru Ushijima, Katsuhiko Iwabuchi
  • Publication number: 20110247560
    Abstract: A disclosed substrate processing apparatus comprises a reaction chamber; a substrate supporting portion that is provided in the reaction chamber and configured to support a substrate; and plural catalyst reaction portions that are arranged in the reaction chamber in order to oppose the substrate supporting portion, and configured to produce a reaction gas by allowing a source gas introduced from a gas introduction portion to contact a catalyst and to eject the reaction gas to an inner space of the reaction chamber, thereby processing the substrate supported by the substrate supporting portion with the ejected reaction gas.
    Type: Application
    Filed: November 19, 2009
    Publication date: October 13, 2011
    Applicants: TOKYO ELECTRON LIMITED, NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY
    Inventors: Kanji Yasui, Hiroshi Nishiyama, Yasunobu Inoue, Mitsuru Ushijima, Katsuhiko Iwabuchi
  • Patent number: 7569124
    Abstract: In an anodic oxidation apparatus and an anodic oxidation method and a panel for a display device manufactured by them, a large target substrate is treated by a smaller component.
    Type: Grant
    Filed: August 25, 2004
    Date of Patent: August 4, 2009
    Assignee: Tokyo Electron Limited and Matsushita Electric Works, Ltd.
    Inventors: Yasushi Yagi, Mitsuru Ushijima, Yoshifumi Watabe, Takuya Komoda, Koichi Aizawa
  • Patent number: 7169283
    Abstract: In an anodization apparatus and an anodization method for electrochemically treating a target substrate by irradiating the target substrate with light, treatment of a large target substrate can be made possible with smaller constituent elements. The electrical contact with the target substrate by a contact member is realized by a plurality of contact members or by the movement of a contact member to change the electrical contact position. The target substrate is manufactured in advance so as to have such a structure that portions thereof to be in contact with the plural contact members are connected to portions of a conductive layer on a treatment part thereof respectively.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: January 30, 2007
    Assignee: Tokyo Electron Limited
    Inventors: Yasushi Yagi, Kazutsugu Aoki, Mitsuru Ushijima
  • Patent number: 7118663
    Abstract: An anodic oxidation apparatus and an anodic oxidation method are provided that enable uniform photoirradiation of a treatment part of a target substrate, thereby realizing enhancement in uniformity of anodic oxidation in the surface of the target substrate. The anodic oxidation apparatus includes: a lamp that emits light; a target substrate holder provided at a position reached by the emitted light and capable of holding the target substrate; a cathode electrode that is provided on the way of the emitted light to reach the target substrate and that has an opening portion to allow light to pass therethrough and has a conductor section not transmitting light; and a vibrating mechanism to periodically vibrate a spatial position of one of the cathode electrode, the lamp, and the target substrate holder.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: October 10, 2006
    Assignee: Tokyo Electron Limited
    Inventors: Yasushi Yagi, Kazutsugu Aoki, Mitsuru Ushijima
  • Publication number: 20050077183
    Abstract: In an anodic oxidation apparatus and an anodic oxidation method and a panel for a display device manufactured by them, a large target substrate is treated by a smaller component.
    Type: Application
    Filed: August 25, 2004
    Publication date: April 14, 2005
    Inventors: Yasushi Yagi, Mitsuru Ushijima, Yoshifumi Watabe, Takuya Komoda, Koichi Aizawa
  • Publication number: 20040089552
    Abstract: In an anodization apparatus and an anodization method for electrochemically treating a target substrate by irradiating the target substrate with light, treatment of a large target substrate can be made possible with smaller constituent elements. The electrical contact with the target substrate by a contact member is realized by a plurality of contact members or by the movement of a contact member to change the electrical contact position. The target substrate is manufactured in advance so as to have such a structure that portions thereof to be in contact with the plural contact members are connected to portions of a conductive layer on a treatment part thereof respectively.
    Type: Application
    Filed: September 12, 2003
    Publication date: May 13, 2004
    Inventors: Yasushi Yagi, Kazutsugu Aoki, Mitsuru Ushijima
  • Publication number: 20040084317
    Abstract: An anodic oxidation apparatus and an anodic oxidation method are provided that enable uniform photoirradiation of a treatment part of a target substrate, thereby realizing enhancement in uniformity of anodic oxidation in the surface of the target substrate; The anodic oxidation apparatus includes: a lamp that emits light; a target substrate holder provided at a position reached by the emitted light and capable of holding the target substrate; a cathode electrode that is provided on the way of the emitted light to reach the target substrate and that has an opening portion to allow light to pass therethrough and has a conductor section not transmitting light; and a vibrating mechanism to periodically vibrate a spatial position of one of the cathode electrode, the lamp, and the target substrate holder.
    Type: Application
    Filed: September 12, 2003
    Publication date: May 6, 2004
    Inventors: Yasushi Yagi, Kazutsugu Aoki, Mitsuru Ushijima
  • Patent number: 6378078
    Abstract: A supervisory circuit for a semiconductor integrated circuit includes a first circuit, a second circuit, inverters, and an EXOR circuit. The first circuit outputs an address signal. The second circuit receives via an address bus the address signal transferred from the first circuit. The inverters hold at least an address signal preceding one transfer period as a past address signal on the address bus. The EXOR circuit compares the past address signal held by the inverters with a current address signal on the address bus, and when the comparison result represents that the past and current address signals are identical, outputs an illicit operation detection signal.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: April 23, 2002
    Assignee: NEC Corporation
    Inventor: Mitsuru Ushijima
  • Patent number: 5442416
    Abstract: A resist process system of the present invention includes at least two robots for conveying a wafer, a passage through which the robots can move, plural process units arranged along the passage, and a waiting unit for temporarily holding the wafer which is to be processed. The waiting unit is arranged beside the passage and between the process units and it includes plural compartments partitioned in it.
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: August 15, 1995
    Assignees: Tokyo Electron Limited, Tokyo Electron Kyushu Limited
    Inventors: Kiyohisa Tateyama, Masami Akimoto, Mitsuru Ushijima
  • Patent number: 5393624
    Abstract: A method of manufacturing a semiconductor device of this invention relates to a method of manufacturing a semiconductor device with ultra-micropattern electrodes. Light is projected on a resist film, and reflected light from a region on which no semiconductor chip is formed, i.e., a flat region is detected to measure the thickness of the resist film. Based on the measured thickness, at least one of the resist film forming step, the exposing step, and the developing step is controlled, so that the electrodes have a desired width.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: February 28, 1995
    Assignee: Tokyo Electron Limited
    Inventor: Mitsuru Ushijima
  • Patent number: 5339128
    Abstract: A resist process system of the present invention includes at least two robots for conveying a wafer, a passage through which the robots can move, plural process units arranged along the passage, and a waiting unit for temporarily holding the wafer which is to be processed. The waiting unit is arranged beside the passage and between the process units and it includes plural compartments partitioned in it.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: August 16, 1994
    Assignees: Tokyo Electron Limited, Tokyo Electron Kyushu Limited
    Inventors: Kiyohisa Tateyama, Masami Akimoto, Mitsuru Ushijima
  • Patent number: 5202716
    Abstract: A resist process system of the present invention includes at least two robots for conveying a wafer, a passage through which the robots can move, plural process units arranged along the passage, and a waiting unit for temporarily holding the wafer which is to be processed. The waiting unit is arranged beside the passage and between the process units and it includes plural compartments partitioned in it.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: April 13, 1993
    Assignees: Tokyo Electron Limited, Tokyo Electron Kyushu Limited
    Inventors: Kiyohisa Tateyama, Masami Akimoto, Mitsuru Ushijima
  • Patent number: 5177514
    Abstract: The resist-processing system according to the present invention includes at least one processing sections having a plurality of treatment units for performing various kinds of treatments on a semiconductor wafer such as the coating process and baking process, a loading section connected to the processing section for supplying the wafer to the processing section, a vacuum tweezer for carrying the wafer in the loading section so as to transfer the wafer from the loading section to the processing section, a handling robot for receiving the wafer from said loading section and transferring it in the processing section so as to load and unload the wafer to/from each of the treatment units, control means for controlling the operations of the vacuum tweezer and the handling robot in accordance with a predetermined program, and a passage provided in the processing section in such a manner the passage is disposed along with said plurality of treating units.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: January 5, 1993
    Assignee: Tokyo Electron Limited
    Inventors: Mitsuru Ushijima, Masami Akimoto
  • Patent number: 5089305
    Abstract: Disclosed is a coating apparatus for applying a resist or developing solution to a semiconductor wafer. This coating apparatus comprises a plurality of nozzles supplied with various resist from a resist source and each adapted to drip the different solution onto the wafer, a vessel in which the nozzles is kept on stand-by, while maintaining the liquids in a predetermined state in the vicinity of discharge port portions of the nozzles, when the nozzles need not be operated, and a nozzle operating mechanism for selecting one of the nozzles kept on stand-by in the vessel, and transporting the selected nozzle to the location of the wafer, whereby the resist is applied to the wafer by means of only the nozzle transported by the nozzle operating mechanism.
    Type: Grant
    Filed: September 20, 1990
    Date of Patent: February 18, 1992
    Assignees: Tokyo Electron Limited, Tel Kyushu Limited
    Inventors: Mitsuru Ushijima, Osamu Hirakawa, Masami Akimoto, Yoshio Kimura, Noriyuki Anai
  • Patent number: 5002008
    Abstract: Disclosed is a coating apparatus for applying a resist or developing solution to a semiconductor wafer. This coating apparatus comprises a plurality of nozzles supplied with various resist from a resist source and each adapted to drip the different solution onto the wafer, a vessel in which the nozzles is kept on stand-by, while maintaining the liquids in a predetermined state in the vicinity of discharge port portions of the nozzles, when the nozzles need not be operated, and a nozzle operating mechanism for selecting one of the nozzles kept on stand-by in the vessel, and transporting the selected nozzle to the location of the wafer, whereby the resist is applied to the wafer by means of only the nozzle transported by the nozzle operating mechanism.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: March 26, 1991
    Assignees: Tokyo Electron Limited, Tel Kyushu Limited
    Inventors: Mitsuru Ushijima, Osamu Hirakawa, Masami Akimoto, Yoshio Kimura, Noriyuki Anai
  • Patent number: 4985722
    Abstract: An apparatus is disclosed which forms a photo-resist film on a substrate surface and/or develops it.
    Type: Grant
    Filed: February 10, 1989
    Date of Patent: January 15, 1991
    Assignees: Tokyo Electron Limited, Tel Kyushu Limited
    Inventors: Mitsuru Ushijima, Masami Akimoto