Patents by Inventor Hirofumi MASUHARA

Hirofumi MASUHARA 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: 9997378
    Abstract: In a substrate processing apparatus, with an internal space of a chamber brought into a pressurized atmosphere, an etching process is performed by continuously supplying a first processing liquid onto an upper surface of a substrate while rotating the substrate. It is thereby possible to suppress vaporization of the first processing liquid on the substrate and further suppress a decrease in the temperature of the substrate due to the heat of vaporization as it goes from a center portion of the substrate toward a peripheral portion thereof as compared with under normal pressure. As a result, it is possible to improve the uniformity in the temperature of the upper surface of the substrate during the etching process using the first processing liquid and improve the uniformity of etching over the entire upper surface of the substrate.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: June 12, 2018
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventors: Hirofumi Masuhara, Kenichiro Arai, Masahiro Miyagi, Toru Endo
  • Patent number: 9640382
    Abstract: In a substrate processing apparatus, with an internal space of a chamber brought into a reduced pressure atmosphere, a first processing liquid is supplied onto an upper surface of a substrate while the substrate is rotated, and the first processing liquid is thereby quickly spread from a center portion toward a peripheral portion on the upper surface of the substrate. It is thereby possible to coat the upper surface of the substrate with the first processing liquid in a shorter time as compared with under normal pressure. Further, by sucking the first processing liquid from the vicinity of an edge of the substrate, it is possible to coat the upper surface of the substrate with the first processing liquid in a still shorter time. As a result, it is possible to shorten the time required for the processing of the substrate.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: May 2, 2017
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventors: Hirofumi Masuhara, Kenichiro Arai, Masahiro Miyagi, Toru Endo
  • Publication number: 20170117163
    Abstract: In a substrate processing apparatus, with an internal space of a chamber brought into a pressurized atmosphere, an etching process is performed by continuously supplying a first processing liquid onto an upper surface of a substrate while rotating the substrate. It is thereby possible to suppress vaporization of the first processing liquid on the substrate and further suppress a decrease in the temperature of the substrate due to the heat of vaporization as it goes from a center portion of the substrate toward a peripheral portion thereof as compared with under normal pressure. As a result, it is possible to improve the uniformity in the temperature of the upper surface of the substrate during the etching process using the first processing liquid and improve the uniformity of etching over the entire upper surface of the substrate.
    Type: Application
    Filed: January 5, 2017
    Publication date: April 27, 2017
    Inventors: Hirofumi MASUHARA, Kenichiro ARAI, Masahiro MIYAGI, Toru ENDO
  • Patent number: 9576808
    Abstract: In a substrate processing apparatus, with an internal space of a chamber brought into a pressurized atmosphere, an etching process is performed by continuously supplying a first processing liquid onto an upper surface of a substrate while rotating the substrate. It is thereby possible to suppress vaporization of the first processing liquid on the substrate and further suppress a decrease in the temperature of the substrate due to the heat of vaporization as it goes from a center portion of the substrate toward a peripheral portion thereof as compared with under normal pressure. As a result, it is possible to improve the uniformity in the temperature of the upper surface of the substrate during the etching process using the first processing liquid and improve the uniformity of etching over the entire upper surface of the substrate.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: February 21, 2017
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventors: Hirofumi Masuhara, Kenichiro Arai, Masahiro Miyagi, Toru Endo
  • Publication number: 20160005592
    Abstract: In a substrate processing apparatus, with an internal space of a chamber brought into a reduced pressure atmosphere, a first processing liquid is supplied onto an upper surface of a substrate while the substrate is rotated, and the first processing liquid is thereby quickly spread from a center portion toward a peripheral portion on the upper surface of the substrate. It is thereby possible to coat the upper surface of the substrate with the first processing liquid in a shorter time as compared with under normal pressure. Further, by sucking the first processing liquid from the vicinity of an edge of the substrate, it is possible to coat the upper surface of the substrate with the first processing liquid in a still shorter time. As a result, it is possible to shorten the time required for the processing of the substrate.
    Type: Application
    Filed: September 15, 2015
    Publication date: January 7, 2016
    Inventors: Hirofumi MASUHARA, Kenichiro ARAI, Masahiro MIYAGI, Toru ENDO
  • Publication number: 20130260574
    Abstract: In a substrate processing apparatus, with an internal space of a chamber brought into a reduced pressure atmosphere, a first processing liquid is supplied onto an upper surface of a substrate while the substrate is rotated, and the first processing liquid is thereby quickly spread from a center portion toward a peripheral portion on the upper surface of the substrate. It is thereby possible to coat the upper surface of the substrate with the first processing liquid in a shorter time as compared with under normal pressure. Further, by sucking the first processing liquid from the vicinity of an edge of the substrate, it is possible to coat the upper surface of the substrate with the first processing liquid in a still shorter time. As a result, it is possible to shorten the time required for the processing of the substrate.
    Type: Application
    Filed: March 28, 2013
    Publication date: October 3, 2013
    Applicant: DAINIPPON SCREEN MFG. CO., LTD
    Inventors: Hirofumi MASUHARA, Kenichiro ARAI, Masahiro MIYAGI, Toru ENDO
  • Publication number: 20130260570
    Abstract: In a substrate processing apparatus, with an internal space of a chamber brought into a pressurized atmosphere, an etching process is performed by continuously supplying a first processing liquid onto an upper surface of a substrate while rotating the substrate. It is thereby possible to suppress vaporization of the first processing liquid on the substrate and further suppress a decrease in the temperature of the substrate due to the heat of vaporization as it goes from a center portion of the substrate toward a peripheral portion thereof as compared with under normal pressure. As a result, it is possible to improve the uniformity in the temperature of the upper surface of the substrate during the etching process using the first processing liquid and improve the uniformity of etching over the entire upper surface of the substrate.
    Type: Application
    Filed: March 28, 2013
    Publication date: October 3, 2013
    Applicant: DAINIPPON SCREEN MFG. CO., LTD
    Inventors: Hirofumi MASUHARA, Kenichiro ARAI, Masahiro MIYAGI, Toru ENDO
  • Publication number: 20130014905
    Abstract: An ultrashort pulsed laser beam, the fluence of which on an interface BF is set to be larger than a substrate processing threshold and smaller than a film processing threshold, is irradiated to the interface BF via a thin film F. Thus, in a laser irradiated portion of the interface BF, the substrate W is selectively processed, bonding between the substrate and the thin film F is reduced and the thin film F is peeled.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 17, 2013
    Inventors: Yoshiyuki NAKAZAWA, Hirofumi MASUHARA, Koji ANDO