Patents by Inventor Masami Yonekawa

Masami Yonekawa 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: 11798818
    Abstract: The present invention provides a container for containing a plate to be used to remove particles in a processing apparatus for processing a substrate, comprising: a charging unit configured to charge the stored plate, wherein the charging unit includes a contactor configured to be in contact with the plate, and is configured to charge the plate by supplying electric charges to the plate via the contactor and then separating the contactor from the plate.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: October 24, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masami Yonekawa
  • Publication number: 20230149982
    Abstract: A curable composition on a substrate is cured in a state where a member is in contact with the curable composition. Thereafter, the member having adhered to the curable composition is separated from the substrate, whereby the curable composition and a particle are removed from the substrate.
    Type: Application
    Filed: November 9, 2022
    Publication date: May 18, 2023
    Inventors: Masami Yonekawa, Tomohiro Saito, Hisanobu Azuma
  • Publication number: 20220364972
    Abstract: The present invention provides an evaluation method for evaluating a state in an apparatus concerning particles existing inside a substrate processing apparatus for processing a substrate, including arranging a plate in a charged state inside the apparatus and obtaining the number of particles adhered to the plate by performing a dummy operation different from an operation of processing the substrate, and evaluating the state in the apparatus based on a coefficient representing a ratio of the number of particles adhered to the plate by performing the dummy operation for the plate in an uncharged state to the number of particles adhered to the plate in the charged state, and the number of particles obtained in the arranging the plate.
    Type: Application
    Filed: April 28, 2022
    Publication date: November 17, 2022
    Inventors: Masami Yonekawa, Hisanobu Azuma, Toshihiro Ifuku
  • Patent number: 11036149
    Abstract: An imprint apparatus forms a pattern on a substrate by curing an imprint material on the substrate while the imprint material is in contact with a mold. The imprint apparatus includes a substrate chuck having a substrate holding region for holding the substrate, a peripheral member arranged to surround the side surface of the substrate held by the substrate chuck, and a control unit configured to control a cleaning process for cleaning at least a partial region of the peripheral member by using a cleaning member including a charging unit. The cleaning process includes an operation for attracting a particle in the partial region to the charging unit by moving the cleaning member relative to the peripheral member while the charging unit faces at least the partial region of the peripheral member.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: June 15, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoichi Matsuoka, Kiyohito Yamamoto, Hisanobu Azuma, Shigeru Terashima, Toshihiro Maeda, Masami Yonekawa, Keiji Emoto, Kazuki Nakagawa
  • Patent number: 10889052
    Abstract: There is provided an imprint apparatus for forming a pattern of an imprint material on a substrate by using a mold, the imprint apparatus including a mold holding unit configured to hold the mold, and a substrate holding unit configured to hold the substrate, in which a particle is captured by generating a first region and a second region charged to different polarities in at least either one of a peripheral region of a region covered by the mold of the mold holding unit and a peripheral region of a region covered by the substrate of the substrate holding unit.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: January 12, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masami Yonekawa, Yoichi Matsuoka
  • Publication number: 20200176275
    Abstract: The present invention provides a container for containing a plate to be used to remove particles in a processing apparatus for processing a substrate, comprising: a charging unit configured to charge the stored plate, wherein the charging unit includes a contactor configured to be in contact with the plate, and is configured to charge the plate by supplying electric charges to the plate via the contactor and then separating the contactor from the plate.
    Type: Application
    Filed: November 26, 2019
    Publication date: June 4, 2020
    Inventor: Masami Yonekawa
  • Patent number: 10444646
    Abstract: A lithography apparatus that forms a pattern on a substrate, and the lithography apparatus includes: a holding unit that holds the substrate; and a cleaning member that brings a polishing unit into contact with the holding unit to clean the holding unit, in which the cleaning member includes a supply port which is arranged in the polishing unit and through which gas is supplied, and a suction port which is arranged in a periphery of the polishing unit and through which gas is sucked.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: October 15, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masami Yonekawa
  • Patent number: 10228624
    Abstract: A lithography apparatus transfers a pattern of an original to a substrate. The apparatus includes an electrode structure arranged so as to surround a side surface of one of the substrate and the original, and a power supply configured to supply an alternating voltage to the electrode structure. The electrode structure includes a plurality of electrode groups electrically insulated from each other, each electrode group including a plurality of electrodes electrically connected to each other, and the power supply supplies alternating voltages having different phases to the plurality of electrode groups.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: March 12, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masami Yonekawa
  • Publication number: 20190064682
    Abstract: A lithography apparatus that forms a pattern on a substrate, and the lithography apparatus includes: a holding unit that holds the substrate; and a cleaning member that brings a polishing unit into contact with the holding unit to clean the holding unit, in which the cleaning member includes a supply port which is arranged in the polishing unit and through which gas is supplied, and a suction port which is arranged in a periphery of the polishing unit and through which gas is sucked.
    Type: Application
    Filed: August 21, 2018
    Publication date: February 28, 2019
    Inventor: Masami Yonekawa
  • Publication number: 20180356741
    Abstract: An imprint apparatus forms a pattern on a substrate by curing an imprint material on the substrate while the imprint material is in contact with a mold. The imprint apparatus includes a substrate chuck having a substrate holding region for holding the substrate, a peripheral member arranged to surround the side surface of the substrate held by the substrate chuck, and a control unit configured to control a cleaning process for cleaning at least a partial region of the peripheral member by using a cleaning member including a charging unit. The cleaning process includes an operation for attracting a particle in the partial region to the charging unit by moving the cleaning member relative to the peripheral member while the charging unit faces at least the partial region of the peripheral member.
    Type: Application
    Filed: August 20, 2018
    Publication date: December 13, 2018
    Inventors: Yoichi Matsuoka, Kiyohito Yamamoto, Hisanobu Azuma, Shigeru Terashima, Toshihiro Maeda, Masami Yonekawa, Keiji Emoto, Kazuki Nakagawa
  • Publication number: 20170246792
    Abstract: There is provided an imprint apparatus for forming a pattern of an imprint material on a substrate by using a mold, the imprint apparatus including a mold holding unit configured to hold the mold, and a substrate holding unit configured to hold the substrate, in which a particle is captured by generating a first region and a second region charged to different polarities in at least either one of a peripheral region of a region covered by the mold of the mold holding unit and a peripheral region of a region covered by the substrate of the substrate holding unit.
    Type: Application
    Filed: February 17, 2017
    Publication date: August 31, 2017
    Inventors: Masami Yonekawa, Yoichi Matsuoka
  • Publication number: 20170235234
    Abstract: A lithography apparatus transfers a pattern of an original to a substrate. The apparatus includes an electrode structure arranged so as to surround a side surface of one of the substrate and the original, and a power supply configured to supply an alternating voltage to the electrode structure. The electrode structure includes a plurality of electrode groups electrically insulated from each other, each electrode group including a plurality of electrodes electrically connected to each other, and the power supply supplies alternating voltages having different phases to the plurality of electrode groups.
    Type: Application
    Filed: February 13, 2017
    Publication date: August 17, 2017
    Inventor: Masami Yonekawa
  • Patent number: 9213231
    Abstract: A reflective original includes: a reflection layer which has a multilayer film configured to reflect extreme ultraviolet light; a base material configured to support the reflection layer; and a thermal diffusion layer interposed between the reflection layer and the base material, and configured to diffuse heat of the reflection layer. A heat capacity, per unit area, of a structure constituted by both the reflection layer and the thermal diffusion layer is not lower than 1.1 (J/(K·m2)).
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: December 15, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masami Yonekawa, Akira Miyake
  • Publication number: 20150017573
    Abstract: A reflective original includes: a reflection layer which has a multilayer film configured to reflect extreme ultraviolet light; a base material configured to support the reflection layer; and a thermal diffusion layer interposed between the reflection layer and the base material, and configured to diffuse heat of the reflection layer. A heat capacity, per unit area, of a structure constituted by both the reflection layer and the thermal diffusion layer is not lower than 1.1 (J/(K·m2)).
    Type: Application
    Filed: July 8, 2014
    Publication date: January 15, 2015
    Inventors: Masami Yonekawa, Akira Miyake
  • Patent number: 8814970
    Abstract: A trapping device that traps a particle in a vacuum atmosphere includes a plurality of grooves arrayed on a surface of the trapping device. Each of the plurality of grooves has a shape that is obtained by replacing a bottom part of a U-groove is replaced with a V-groove.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: August 26, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masami Yonekawa
  • Publication number: 20110186082
    Abstract: A trapping device that traps a particle in a vacuum atmosphere includes a plurality of grooves arrayed on a surface of the trapping device. Each of the plurality of grooves has a shape that is obtained by replacing a bottom part of a U-groove is replaced with a V-groove.
    Type: Application
    Filed: February 3, 2011
    Publication date: August 4, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Masami YONEKAWA
  • Patent number: 7911588
    Abstract: An exposure apparatus configured to expose a pattern of an original onto a substrate includes a wire electrode row that includes plural parallel wire electrodes, and that is opposed to the original, and a power source that applies an AC voltage to the plural wire electrodes, wherein the wire electrode row includes a first electrode group, and a second wire electrode group to which an AC voltage having a phase different from that of an AC voltage applied to the first electrode group is applied.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: March 22, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masami Yonekawa, Mitsuru Inoue
  • Publication number: 20100183987
    Abstract: An exposure apparatus for exposing a substrate to radiant energy in a vacuum is disclosed. The apparatus comprises a chamber in which the vacuum is generated, a blowing device including a supply nozzle (17a) located in the chamber and configured to blow, through said supply nozzle, a gas to an object (2) arranged in the chamber in which the vacuum is generated, and a recovery device including a recovery nozzle (17b) located in the chamber and configured to recover, through the recovery nozzle, the gas blown into the chamber through said supply nozzle, wherein the apparatus is configured so that the object moves in a direction opposite to a direction from the supply nozzle to the recover nozzle, parallel to blowing by the blowing device.
    Type: Application
    Filed: December 5, 2007
    Publication date: July 22, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Masami Yonekawa
  • Patent number: 7670754
    Abstract: An exposure apparatus for executing an exposure of a substrate to light via a mask. The apparatus includes a booth which stores the mask in an atmospheric pressure, a processing chamber in which the exposure is executed in a first vacuum pressure, a vacuum chamber, arranged between the booth and the processing chamber, stores the mask at a second vacuum pressure that is higher than the first vacuum pressure and is between 0.1 Pa and 100 Pa, a first load lock chamber, arranged between the booth and the vacuum chamber, through which the mask is transferred, in which the atmospheric pressure and the second vacuum pressure are replaceable, and a second load lock chamber arranged between the vacuum chamber and the processing chamber, through which the mask is transferred, in which the second vacuum pressure and the first vacuum pressure are replaceable.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: March 2, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryo Edo, Masami Yonekawa, Shinichi Hara
  • Publication number: 20080246939
    Abstract: An exposure apparatus configured to expose a pattern of an original onto a substrate includes a wire electrode row that includes plural parallel wire electrodes, and that is opposed to the original, and a power source that applies an AC voltage to the plural wire electrodes, wherein the wire electrode row includes a first electrode group, and a second wire electrode group to which an AC voltage having a phase different from that of an AC voltage applied to the first electrode group is applied.
    Type: Application
    Filed: March 27, 2008
    Publication date: October 9, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masami Yonekawa, Mitsuru Inoue