Patents by Inventor Michiyoshi YAMASHITA

Michiyoshi YAMASHITA 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: 20230326757
    Abstract: The present application relates to a substrate processing method for suppressing cracking and chipping of a laminated substrate manufactured by bonding a plurality of substrates. Further, the present application relates to a substrate processing apparatus capable of performing such a substrate processing method. The present method includes: rotating a laminated substrate manufactured by bonding a first substrate and a second substrate; applying a filler, having thermosetting property, to a gap between a peripheral portion of the first substrate and a peripheral portion of the second substrate; and curing the filler. Applying the filler and curing the filler are continuously performed in a same processing chamber.
    Type: Application
    Filed: June 25, 2021
    Publication date: October 12, 2023
    Inventors: Masayuki SATAKE, Masayuki NAKANISHI, Michiyoshi YAMASHITA
  • Patent number: 10427269
    Abstract: A polishing apparatus which can maintain a polishing load within an appropriate range is disclosed. The polishing apparatus includes: a pressing member for pressing a polishing tool against the substrate; an actuator configured to control a pressing force of the pressing member; a positioning member which is movable together with the pressing member; a stopper arranged to restrict movement of the pressing member and the positioning member; a stopper moving mechanism configured to move the stopper in a predetermined direction; a polishing-load detector configured to obtain a load feedback value which varies according to a polishing load applied to the pressing member; and a stopper-speed determining device configured to determine a movement speed of the stopper which can allow the load feedback value to fall within a set range.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: October 1, 2019
    Assignee: EBARA CORPORATION
    Inventors: Makoto Kashiwagi, Michiyoshi Yamashita
  • Patent number: 10403505
    Abstract: A method and an apparatus for processing a peripheral portion of a substrate, such as a wafer, are disclosed. The substrate processing method includes: holding a substrate on a substrate stage; rotating the substrate stage and the substrate about an axis of the substrate stage; directing a laser beam to an edge portion of the rotating substrate to form an annular crack in the substrate; and pressing a polishing tool against the edge portion of the rotating substrate to form a stepped recess in a peripheral portion of the substrate.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: September 3, 2019
    Assignee: EBARA CORPORATION
    Inventors: Kenya Ito, Masaya Seki, Kenichi Kobayashi, Michiyoshi Yamashita
  • Publication number: 20180076043
    Abstract: A method and an apparatus for processing a peripheral portion of a substrate, such as a wafer, are disclosed. The substrate processing method includes: holding a substrate on a substrate stage; rotating the substrate stage and the substrate about an axis of the substrate stage; directing a laser beam to an edge portion of the rotating substrate to form an annular crack in the substrate; and pressing a polishing tool against the edge portion of the rotating substrate to form a stepped recess in a peripheral portion of the substrate.
    Type: Application
    Filed: September 11, 2017
    Publication date: March 15, 2018
    Inventors: Kenya ITO, Masaya SEKI, Kenichi KOBAYASHI, Michiyoshi YAMASHITA
  • Publication number: 20170291273
    Abstract: A polishing apparatus which can maintain a polishing load within an appropriate range is disclosed. The polishing apparatus includes: a pressing member for pressing a polishing tool against the substrate; an actuator configured to control a pressing force of the pressing member; a positioning member which is movable together with the pressing member; a stopper arranged to restrict movement of the pressing member and the positioning member; a stopper moving mechanism configured to move the stopper in a predetermined direction; a polishing-load detector configured to obtain a load feedback value which varies according to a polishing load applied to the pressing member; and a stopper-speed determining device configured to determine a movement speed of the stopper which can allow the load feedback value to fall within a set range.
    Type: Application
    Filed: April 4, 2017
    Publication date: October 12, 2017
    Inventors: Makoto KASHIWAGI, Michiyoshi YAMASHITA
  • Patent number: 9630289
    Abstract: A polishing method includes rotating a substrate, performing a first polishing process of pressing a polishing tape against an edge portion of the substrate by a pressing member, with a portion of the polishing tape projecting from the pressing member inwardly in a radial direction of the substrate, to polish the edge portion of the substrate and bend the portion of the polishing tape along the pressing member, and performing a second polishing process of pressing the bent portion of the polishing tape inwardly in the radial direction of the substrate by the pressing member to further polish the edge portion of the substrate.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: April 25, 2017
    Assignee: Ebara Corporation
    Inventors: Tetsuji Togawa, Atsushi Yoshida, Michiyoshi Yamashita
  • Patent number: 9492910
    Abstract: There is disclosed a method of polishing a peripheral portion of a wafer having a hard film with use of an abrasive film while preventing damage to the abrasive film. The polishing method uses an abrasive film including a base film made of polyimide, a binder made of polyimide, and abrasive grains held by the binder. The polishing method includes: rotating a silicon substrate having a surface on which a silicon carbide film is formed; and removing the silicon carbide film from a peripheral portion of the silicon substrate by pressing the abrasive film at a low force against the silicon carbide film on the peripheral portion of the silicon substrate.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: November 15, 2016
    Assignee: Ebara Corporation
    Inventors: Yu Ishii, Hiroyuki Kawasaki, Masayuki Nakanishi, Kenya Ito, Kenji Kodera, Michiyoshi Yamashita
  • Publication number: 20160052107
    Abstract: There is disclosed a method of polishing a peripheral portion of a wafer having a hard film with use of an abrasive film while preventing damage to the abrasive film. The polishing method uses an abrasive film including a base film made of polyimide, a binder made of polyimide, and abrasive grains held by the binder. The polishing method includes: rotating a silicon substrate having a surface on which a silicon carbide film is formed; and removing the silicon carbide film from a peripheral portion of the silicon substrate by pressing the abrasive film at a low force against the silicon carbide film on the peripheral portion of the silicon substrate.
    Type: Application
    Filed: August 11, 2015
    Publication date: February 25, 2016
    Inventors: Yu ISHII, Hiroyuki KAWASAKI, Masayuki NAKANISHI, Kenya ITO, Kenji KODERA, Michiyoshi YAMASHITA
  • Publication number: 20140094095
    Abstract: A polishing method includes rotating a substrate, performing a first polishing process of pressing a polishing tape against an edge portion of the substrate by a pressing member, with a portion of the polishing tape projecting from the pressing member inwardly in a radial direction of the substrate, to polish the edge portion of the substrate and bend the portion of the polishing tape along the pressing member, and performing a second polishing process of pressing the bent portion of the polishing tape inwardly in the radial direction of the substrate by the pressing member to further polish the edge portion of the substrate.
    Type: Application
    Filed: September 23, 2013
    Publication date: April 3, 2014
    Applicant: EBARA CORPORATION
    Inventors: Tetsuji TOGAWA, Atsushi YOSHIDA, Michiyoshi YAMASHITA