Patents by Inventor Yoshimaro Fujii

Yoshimaro Fujii 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: 20220352026
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Application
    Filed: July 19, 2022
    Publication date: November 3, 2022
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro FUJII, Fumitsugu FUKUYO, Kenshi FUKUMITSU, Naoki UCHIYAMA
  • Patent number: 11424162
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: August 23, 2022
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro Fujii, Fumitsugu Fukuyo, Kenshi Fukumitsu, Naoki Uchiyama
  • Patent number: 11101315
    Abstract: Each semiconductor chip of a detector comprises a semiconductor substrate having a plurality of photodetector units, an insulating layer formed on a front face of the semiconductor substrate, a common electrode arranged on the insulating layer, a readout line for electrically connecting a quenching resistance of each photodetector unit and the common electrode to each other, and a through electrode extending from the common electrode to a rear face of the semiconductor substrate through a through hole of the semiconductor substrate.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: August 24, 2021
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro Fujii, Terumasa Nagano, Kazuhisa Yamamura, Kenichi Sato, Ryutaro Tsuchiya
  • Publication number: 20210210387
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Application
    Filed: March 16, 2021
    Publication date: July 8, 2021
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro FUJII, Fumitsugu FUKUYO, Kenshi FUKUMITSU, Naoki UCHIYAMA
  • Patent number: 10879303
    Abstract: Each semiconductor chip of a detector comprises a semiconductor substrate having a plurality of photodetector units, an insulating layer formed on a front face of the semiconductor substrate, a common electrode arranged on the insulating layer, a readout line for electrically connecting a quenching resistance of each photodetector unit and the common electrode to each other, and a through electrode extending from the common electrode to a rear face of the semiconductor substrate through a through hole of the semiconductor substrate.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: December 29, 2020
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro Fujii, Terumasa Nagano, Kazuhisa Yamamura, Kenichi Sato, Ryutaro Tsuchiya
  • Patent number: 10840294
    Abstract: Each semiconductor chip of a detector comprises a semiconductor substrate having a plurality of photodetector units, an insulating layer formed on a front face of the semiconductor substrate, a common electrode arranged on the insulating layer, a readout line for electrically connecting a quenching resistance of each photodetector unit and the common electrode to each other, and a through electrode extending from the common electrode to a rear face of the semiconductor substrate through a through hole of the semiconductor substrate.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: November 17, 2020
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro Fujii, Terumasa Nagano, Kazuhisa Yamamura, Kenichi Sato, Ryutaro Tsuchiya
  • Publication number: 20200203225
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro FUJII, Fumitsugu FUKUYO, Kenshi FUKUMITSU, Naoki UCHIYAMA
  • Patent number: 10622255
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: April 14, 2020
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro Fujii, Fumitsugu Fukuyo, Kenshi Fukumitsu, Naoki Uchiyama
  • Publication number: 20180350682
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Application
    Filed: July 31, 2018
    Publication date: December 6, 2018
    Inventors: Yoshimaro FUJII, Fumitsugu FUKUYO, Kenshi FUKUMITSU, Naoki UCHIYAMA
  • Patent number: 10068801
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: September 4, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro Fujii, Fumitsugu Fukuyo, Kenshi Fukumitsu, Naoki Uchiyama
  • Publication number: 20180090535
    Abstract: Each semiconductor chip of a detector comprises a semiconductor substrate having a plurality of photodetector units, an insulating layer formed on a front face of the semiconductor substrate, a common electrode arranged on the insulating layer, a readout line for electrically connecting a quenching resistance of each photodetector unit and the common electrode to each other, and a through electrode extending from the common electrode to a rear face of the semiconductor substrate through a through hole of the semiconductor substrate.
    Type: Application
    Filed: October 12, 2017
    Publication date: March 29, 2018
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro FUJII, Terumasa NAGANO, Kazuhisa YAMAMURA, Kenichi SATO, Ryutaro TSUCHIYA
  • Publication number: 20170271210
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Application
    Filed: June 8, 2017
    Publication date: September 21, 2017
    Inventors: Yoshimaro FUJII, Fumitsugu FUKUYO, Kenshi FUKUMITSU, Naoki UCHIYAMA
  • Patent number: 9711405
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: July 18, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro Fujii, Fumitsugu Fukuyo, Kenshi Fukumitsu, Naoki Uchiyama
  • Publication number: 20170200693
    Abstract: An electronic component includes a base, a laminate of a plurality of conductive metal material layers, and a solder layer made of Au—Sn alloy solder. The laminate is disposed on the base. The solder layer is disposed on the laminate. The laminate includes a surface layer made of Au as the conductive metal material layer constituting an outermost layer. The surface layer includes a solder layer-disposing region in which the solder layer is disposed and a solder layer-empty region in which the solder layer is not disposed. The solder layer-disposing region and the solder layer-empty region are spatially separated from each other.
    Type: Application
    Filed: August 5, 2015
    Publication date: July 13, 2017
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro FUJII, Hiroshi OGURI, Akira SAKAMOTO, Tomoya TAGUCHI
  • Patent number: 9553023
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping, and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: January 24, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro Fujii, Fumitsugu Fukuyo, Kenshi Fukumitsu, Naoki Uchiyama
  • Patent number: 9548246
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping, and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: January 17, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro Fujii, Fumitsugu Fukuyo, Kenshi Fukumitsu, Naoki Uchiyama
  • Patent number: 9543207
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: January 10, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro Fujii, Fumitsugu Fukuyo, Kenshi Fukumitsu, Naoki Uchiyama
  • Patent number: 9543256
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping, and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: January 10, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshimaro Fujii, Fumitsugu Fukuyo, Kenshi Fukumitsu, Naoki Uchiyama
  • Publication number: 20160343617
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping, and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Application
    Filed: August 2, 2016
    Publication date: November 24, 2016
    Inventors: Yoshimaro FUJII, Fumitsugu FUKUYO, Kenshi FUKUMITSU, Naoki UCHIYAMA
  • Publication number: 20160343618
    Abstract: A substrate dividing method which can thin and divide a substrate while preventing chipping and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.
    Type: Application
    Filed: August 2, 2016
    Publication date: November 24, 2016
    Inventors: Yoshimaro FUJII, Fumitsugu FUKUYO, Kenshi FUKUMITSU, Naoki UCHIYAMA