Patents by Inventor Masaharu Muramatsu

Masaharu Muramatsu 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: 10483302
    Abstract: A solid-state imaging device includes a plurality of photoelectric converting units and a plurality of charge-accumulating units each accumulating a charge generated in the corresponding photoelectric converting unit. The photoelectric converting unit includes a photosensitive region that generates the charge in accordance with light incidence, and an electric potential gradient forming unit that accelerates migration of charge in a second direction in the photosensitive region. The charge-accumulating unit includes: a plurality of regions (semiconductor layers) having an impurity concentration gradually changed in one way in the second direction, and electrodes adapted to apply electric fields to the plurality of regions. Each of the electrodes is disposed over the plurality of regions having the impurity concentration gradually varied.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: November 19, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Shin-ichiro Takagi, Kentaro Maeta, Yasuhito Yoneta, Hisanori Suzuki, Masaharu Muramatsu
  • Patent number: 10403677
    Abstract: An optical detection unit AR is divided so as to have a plurality of pixel regions PX aligned in a column direction. Signals from the plurality of pixel regions PX are integrated for each optical detection unit AR, and output the signal as an electrical signal corresponding to a one-dimensional optical image in time series. Each of the pixel regions PX includes a resistive gate electrode R which promotes transfer of charges in the photoelectric conversion region and a charge accumulation region S2. A drain region ARD is adjacent to the charge accumulation region S2 through a channel region.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: September 3, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Shin-ichiro Takagi, Yasuhito Yoneta, Hisanori Suzuki, Masaharu Muramatsu
  • Patent number: 10283551
    Abstract: A back-illuminated solid-state imaging element includes a semiconductor substrate which has a front surface and a back surface provided with a recess, and in which a thinned section, which is a bottom section of the recess, is an imaging area, a signal read-out circuit formed on the front surface of the semiconductor substrate, a boron layer formed on at least the back surface of the semiconductor substrate and a lateral surface of the recess, a metal layer formed on the boron layer, and provided with an opening opposing a bottom surface of the recess, and an anti-reflection layer formed on the bottom surface of the recess.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: May 7, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Masaharu Muramatsu, Hisanori Suzuki, Yasuhito Yoneta, Shinya Otsuka, Hirotaka Takahashi
  • Patent number: 10269842
    Abstract: An image sensor for short-wavelength light includes a semiconductor membrane, circuit elements formed on one surface of the semiconductor membrane, and a pure boron layer on the other surface of the semiconductor membrane. An anti-reflection or protective layer is formed on top of the pure boron layer. This image sensor has high efficiency and good stability even under continuous use at high flux for multiple years. The image sensor may be fabricated using CCD (charge coupled device) or CMOS (complementary metal oxide semiconductor) technology. The image sensor may be a two-dimensional area sensor, or a one-dimensional array sensor.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: April 23, 2019
    Assignees: Hamamatsu Photonics K.K., KLA-Tencor Corporation
    Inventors: Masaharu Muramatsu, Hisanori Suzuki, Yasuhito Yoneta, Shinya Otsuka, Jehn-Huar Chern, David L. Brown, Yung-Ho Alex Chuang, John Fielden, Venkatraman Iyer
  • Publication number: 20190080911
    Abstract: Provided is a wiring structural body provided with a wiring pattern including a through-wiring pattern, the wiring structural body including: a silicon substrate having a through hole in which the through-wiring pattern is disposed; an insulating layer provided on a surface of the silicon substrate including an inner surface of the through hole along at least the wiring pattern; a boron layer provided on the insulating layer along the wiring pattern; and a metal layer provided on the boron layer.
    Type: Application
    Filed: September 1, 2016
    Publication date: March 14, 2019
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Masaharu MURAMATSU, Hisanori SUZUKI, Yasuhito YONETA, Shinya OTSUKA, Hirotaka TAKAHASHI
  • Publication number: 20190080912
    Abstract: Provided is a method for producing a wiring structural body provided with a wiring pattern, the method including a first step of forming an insulating layer on a surface of a silicon substrate along at least a region for forming the wiring pattern, a second step of forming a boron layer on the insulating layer along the region, and a third step of forming a metal layer on the boron layer by plating.
    Type: Application
    Filed: September 1, 2016
    Publication date: March 14, 2019
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Masaharu MURAMATSU, Hisanori SUZUKI, Yasuhito YONETA, Shinya OTSUKA, Hirotaka TAKAHASHI
  • Patent number: 10199418
    Abstract: A plurality of semiconductor photodetecting elements have a planar shape having a pair of first sides opposed to each other in a first direction and a pair of second sides being shorter than the pair of first sides and opposed to each other in a second direction perpendicular to the first direction, and are disposed on a base so as to be adjacent to each other in juxtaposition. A plurality of bump electrodes each are disposed on sides where the pair of first sides lie in each semiconductor photodetecting element, to electrically and mechanically connect the base to each semiconductor photodetecting element. A plurality of dummy bumps are disposed so that at least one dummy bump is disposed on each of sides where the pair of second sides lie in each semiconductor photodetecting element, to mechanically connect the base to each semiconductor photodetecting element.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: February 5, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Kenichi Sugimoto, Hiroya Kobayashi, Kentaro Maeta, Masaharu Muramatsu
  • Publication number: 20190027521
    Abstract: In a back-illuminated solid-state image pickup device, first charge transfer electrode groups (vertical shift register) are present in an imaging region, and second charge transfer electrode groups (horizontal shift register) are present in a peripheral region of the imaging region. The light incident surface of the semiconductor substrate 4 corresponding to the peripheral region is etched, and an inorganic light shielding substance SH is filled in the etched region. The amount of the inorganic light shielding substance that evaporates and vaporizes under the vacuum environment is extremely small, and the influence on the imaging by the vaporized gas is small.
    Type: Application
    Filed: December 28, 2016
    Publication date: January 24, 2019
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Shinya OTSUKA, Hisanori SUZUKI, Masaharu MURAMATSU
  • Publication number: 20180286898
    Abstract: An optical semiconductor device includes a semiconductor substrate having a plurality of photoelectric conversion parts and having a trench formed to separate the plurality of photoelectric conversion parts from each other, an insulating layer formed on at least an inner surface of the trench, a boron layer formed on the insulating layer, and a metal layer formed on the boron layer.
    Type: Application
    Filed: April 2, 2018
    Publication date: October 4, 2018
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Masaharu MURAMATSU, Yasuhito MIYAZAKI, Hirotaka TAKAHASHI
  • Publication number: 20180286901
    Abstract: A back-illuminated solid-state imaging element includes a semiconductor substrate which has a front surface and a back surface provided with a recess, and in which a thinned section, which is a bottom section of the recess, is an imaging area, a signal read-out circuit formed on the front surface of the semiconductor substrate, a boron layer formed on at least the back surface of the semiconductor substrate and a lateral surface of the recess, a metal layer formed on the boron layer, and provided with an opening opposing a bottom surface of the recess, and an anti-reflection layer formed on the bottom surface of the recess.
    Type: Application
    Filed: July 11, 2016
    Publication date: October 4, 2018
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Masaharu MURAMATSU, Hisanori SUZUKI, Yasuhito YONETA, Shinya OTSUKA, Hirotaka TAKAHASHI
  • Publication number: 20180286899
    Abstract: A method of manufacturing an optical semiconductor device includes preparing a semiconductor substrate having a plurality of photoelectric conversion parts, forming a trench in the semiconductor substrate to separate the plurality of photoelectric conversion parts from each other, forming a boron layer on an inner surface of the trench by a vapor phase growth method, and forming an accumulation layer in the semiconductor substrate along the inner surface of the trench by performing a thermal diffusion treatment on the boron layer.
    Type: Application
    Filed: April 2, 2018
    Publication date: October 4, 2018
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Masaharu MURAMATSU, Yasuhito MIYAZAKI, Hirotaka TAKAHASHI
  • Publication number: 20180286752
    Abstract: A method for manufacturing a solid-state imaging device comprises a first step of preparing an imaging element having a second principal surface having an electrode arranged thereon, and a photoelectric converter part configured to photoelectrically convert the incident energy line so as to generate a signal charge; a second step of preparing a support substrate, provided with a through hole extending in a thickness direction thereof, having a third principal surface; a third step of aligning the imaging element and the support substrate with each other so that the electrode is exposed out of the through hole while the second and third principal surfaces oppose each other and joining the imaging element and the support substrate to each other; and a fourth step of arranging a conductive ball-shaped member in the through hole and electrically connecting the ball-shaped member to the electrode after the third step.
    Type: Application
    Filed: June 5, 2018
    Publication date: October 4, 2018
    Inventors: Yasuhito YONETA, Ryoto TAKISAWA, Shingo ISHIHARA, Hisanori SUZUKI, Masaharu MURAMATSU
  • Patent number: 10068800
    Abstract: A method for manufacturing a solid-state imaging device comprises a first step of preparing an imaging element having a second principal surface having an electrode arranged thereon, and a photoelectric converter part configured to photoelectrically convert the incident energy line so as to generate a signal charge; a second step of preparing a support substrate, provided with a through hole extending in a thickness direction thereof, having a third principal surface; a third step of aligning the imaging element and the support substrate with each other so that the electrode is exposed out of the through hole while the second and third principal surfaces oppose each other and joining the imaging element and the support substrate to each other; and a fourth step of arranging a conductive ball-shaped member in the through hole and electrically connecting the ball-shaped member to the electrode after the third step.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: September 4, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yasuhito Yoneta, Ryoto Takisawa, Shingo Ishihara, Hisanori Suzuki, Masaharu Muramatsu
  • Patent number: 9967503
    Abstract: Each pixel region PX includes a photoelectric conversion region S1, a resistive gate electrode R, a first transfer electrode T1, a second transfer electrode T2, a barrier region B positioned directly beneath the first transfer electrode T1 in a semiconductor substrate 10, and a charge accumulation region S2 positioned directly beneath the second transfer electrode T2 in the semiconductor substrate 10. An impurity concentration of the barrier region B is lower than an impurity concentration of the charge accumulation region S2, and the first transfer electrode T1 and the second transfer electrode T2 are electrically connected to each other.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: May 8, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Shin-ichiro Takagi, Yasuhito Yoneta, Hisanori Suzuki, Masaharu Muramatsu
  • Publication number: 20180029112
    Abstract: There is provided a manufacturing apparatus for a metal molded body. The manufacturing apparatus includes: a die having an elongated shape in plan view; and a plurality of pairs of thrust units disposed along a wall surface with the die disposed therebetween from both sides of the die, wherein the pairs of thrust units have electromagnetic coils that generate reverse traveling magnetic fields, and the pairs of thrust units arranged in a longitudinal direction are set so as to generate the reverse traveling magnetic fields for each series composed of a single thrust unit or a plurality of the thrust units.
    Type: Application
    Filed: July 28, 2017
    Publication date: February 1, 2018
    Inventors: Masaharu MURAMATSU, Shogo SHIBASAKI, Masataka YAHARA
  • Publication number: 20180029111
    Abstract: There is provided a metal molded body manufacturing apparatus for electromagnetically stirring metallic molten metal and molding a metal molded body. The metal molded body manufacturing apparatus includes: a die having an inclined side wall; and a moving magnetic field generation section that stirs the molten metal in the die, wherein the moving magnetic field generation section includes a magnetic body, and a coil wound around the magnetic body as a center, and an end surface of the magnetic body is disposed in parallel to an inner surface of the side wall.
    Type: Application
    Filed: July 28, 2017
    Publication date: February 1, 2018
    Inventors: Masaharu MURAMATSU, Shogo SHIBASAKI, Masataka YAHARA
  • Publication number: 20170338257
    Abstract: An image sensor for short-wavelength light includes a semiconductor membrane, circuit elements formed on one surface of the semiconductor membrane, and a pure boron layer on the other surface of the semiconductor membrane. An anti-reflection or protective layer is formed on top of the pure boron layer. This image sensor has high efficiency and good stability even under continuous use at high flux for multiple years. The image sensor may be fabricated using CCD (charge coupled device) or CMOS (complementary metal oxide semiconductor) technology. The image sensor may be a two-dimensional area sensor, or a one-dimensional array sensor.
    Type: Application
    Filed: August 4, 2017
    Publication date: November 23, 2017
    Inventors: Masaharu Muramatsu, Hisanori Suzuki, Yasuhito Yoneta, Shinya Otsuka, Jehn-Huar Chern, David L. Brown, Yung-Ho Alex Chuang, John Fielden, Venkatraman Iyer
  • Publication number: 20170301722
    Abstract: A back-illuminated solid-state imaging device includes a semiconductor substrate, a shift register, and a light-shielding film. The semiconductor substrate includes a light incident surface on the back side and a light receiving portion generating a charge in accordance with light incidence. The shift register is disposed on the side of a light-detective surface opposite to the light incident surface of the semiconductor substrate. The light-shielding film is disposed on the side of the light-detective surface of the semiconductor substrate. The light-shielding film includes an uneven surface opposing the light-detective surface.
    Type: Application
    Filed: August 4, 2015
    Publication date: October 19, 2017
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Shin-ichiro TAKAGI, Kentaro MAETA, Yasuhito YONETA, Hisanori SUZUKI, Masaharu MURAMATSU
  • Patent number: 9754995
    Abstract: A method for manufacturing a solid-state imaging device comprises a first step of preparing an imaging element including a second principal surface having an electrode arranged thereon, and a photoelectric converter part configured to photoelectrically convert the incident energy line so as to generate a signal charge; a second step of preparing a support substrate, provided with at least one through hole extending in a thickness direction thereof, having a third principal surface; a third step of aligning the imaging element and the support substrate with each other so that the one electrode is exposed out of the one through hole while the second and third principal surfaces oppose each other and joining the imaging element and the support substrate to each other; and a fourth step of embedding a conductive member in the through hole after the third step.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: September 5, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yasuhito Yoneta, Ryoto Takisawa, Shingo Ishihara, Hisanori Suzuki, Masaharu Muramatsu
  • Patent number: 9748294
    Abstract: An image sensor for short-wavelength light includes a semiconductor membrane, circuit elements formed on one surface of the semiconductor membrane, and a pure boron layer on the other surface of the semiconductor membrane. An anti-reflection or protective layer is formed on top of the pure boron layer. This image sensor has high efficiency and good stability even under continuous use at high flux for multiple years. The image sensor may be fabricated using CCD (charge coupled device) or CMOS (complementary metal oxide semiconductor) technology. The image sensor may be a two-dimensional area sensor, or a one-dimensional array sensor.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: August 29, 2017
    Assignees: Hamamatsu Photonics K.K., KLA-Tencor Corporation
    Inventors: Masaharu Muramatsu, Hisanori Suzuki, Yasuhito Yoneta, Shinya Otsuka, Jehn-Huar Chem, David L. Brown, Yung-Ho Alex Chuang, John Fielden, Venkatraman Iyer