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).
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Patent number: 11942506Abstract: The photosensitive region includes a first impurity region and a second impurity region having a higher impurity concentration than that of the first impurity region. The photosensitive region includes one end positioned away from the transfer section in the second direction and another end positioned closer to the transfer section in the second direction. A shape of the second impurity region in plan view is line-symmetric with respect to a center line of the photosensitive region along the second direction. A width of the second impurity region in the first direction increases in a transfer direction from the one end to the other end. An increase rate of the width of the second impurity region in each of sections, obtained by dividing the photosensitive region into n sections in the second direction, becomes gradually higher in the transfer direction. Here, n is an integer of two or more.Type: GrantFiled: July 19, 2018Date of Patent: March 26, 2024Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Shin-ichiro Takagi, Mitsuhito Mase, Jun Hiramitsu, Yasuhito Yoneta, Masaharu Muramatsu
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Patent number: 11908880Abstract: A first region includes a plurality of first transfer column regions distributed in a first direction. A second region includes a plurality of second transfer column regions distributed in the first direction. The second region is positioned downstream of the first region in a charge transfer direction in the second transfer section. Lengths in a second direction of the plurality of first transfer column regions are equal. Lengths in the second direction of the plurality of second transfer column regions are longer than the length of the first transfer column region, and increase as the second transfer column region is positioned downstream in the charge transfer direction. A third region is disposed to correspond to the first region and extends along the first direction.Type: GrantFiled: June 10, 2021Date of Patent: February 20, 2024Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Shin-ichiro Takagi, Yasuhito Yoneta, Masaharu Muramatsu
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Patent number: 11862659Abstract: A backside incident-type imaging element includes a semiconductor substrate having a front surface and a back surface on an opposite side from the front surface, a ground potential being applied to the semiconductor substrate, and a semiconductor layer formed on the front surface, in which the semiconductor layer has a first element part that includes a light receiving portion generating a signal charge according to incident light from a side of the back surface and outputs a signal voltage corresponding to the signal charge, and a second element part that includes an analog-digital converter converting the signal voltage output from the first element part into a digital signal.Type: GrantFiled: July 3, 2020Date of Patent: January 2, 2024Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Masaharu Muramatsu, Shin-ichiro Takagi, Yasuhito Yoneta
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Publication number: 20220344520Abstract: The photodetector includes a light receiving element and a package. The package has an accommodation member formed of a ceramic, a wiring including a pad connected to a terminal of the light receiving element by a wire, and a light transmitting member. A bottom wall of the accommodation member has a placement surface to which the light receiving element is attached by an adhesive member. The bottom wall or a side wall of the accommodation member has a pad surface on which the pad is disposed, the pad surface positioned on an opening side of the accommodation member with respect to the placement surface. The side wall has a through hole. At least a portion of an inner end portion of the through hole is positioned on the opening side with respect to a surface of the light receiving element on the opening side.Type: ApplicationFiled: August 28, 2020Publication date: October 27, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Masaharu MURAMATSU, Yasuhito YONETA, Hiroya KOBAYASHI, Tetsuya ABE, Kenichiro TANIGUCHI
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Patent number: 11482555Abstract: A semiconductor device includes a support body including a mount region, a semiconductor chip disposed on the mount region with a predetermined distance therebetween, a bump disposed between the support body and the semiconductor chip, a wall portion disposed between the support body and the semiconductor chip along a part of an outer edge of the semiconductor chip, and an underfill resin layer disposed between the support body and the semiconductor chip. The underfill resin layer covers an outer side surface of the wall portion.Type: GrantFiled: November 27, 2018Date of Patent: October 25, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Shin-ichiro Takagi, Yasuhito Yoneta, Masaharu Muramatsu, Nao Inoue, Hirokazu Yamamoto, Shinichi Nakata, Takuo Koyama
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Publication number: 20220208809Abstract: A backside incident-type imaging element includes a semiconductor substrate having a front surface and a back surface on an opposite side from the front surface, a ground potential being applied to the semiconductor substrate, and a semiconductor layer formed on the front surface, in which the semiconductor layer has a first element part that includes a light receiving portion generating a signal charge according to incident light from a side of the back surface and outputs a signal voltage corresponding to the signal charge, and a second element part that includes an analog-digital converter converting the signal voltage output from the first element part into a digital signal.Type: ApplicationFiled: July 3, 2020Publication date: June 30, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Masaharu MURAMATSU, Shin-ichiro TAKAGI, Yasuhito YONETA
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Publication number: 20210305312Abstract: A first region includes a plurality of first transfer column regions distributed in a first direction. A second region includes a plurality of second transfer column regions distributed in the first direction. The second region is positioned downstream of the first region in a charge transfer direction in the second transfer section. Lengths in a second direction of the plurality of first transfer column regions are equal. Lengths in the second direction of the plurality of second transfer column regions are longer than the length of the first transfer column region, and increase as the second transfer column region is positioned downstream in the charge transfer direction. A third region is disposed to correspond to the first region and extends along the first direction.Type: ApplicationFiled: June 10, 2021Publication date: September 30, 2021Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Shin-ichiro TAKAGI, Yasuhito YONETA, Masaharu MURAMATSU
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Patent number: 11127777Abstract: A first region includes first transfer column regions distributed in a first direction. A second region includes second transfer column regions distributed in the first direction. The second region is positioned downstream of the first region in a charge transfer direction. Lengths in a second direction of the first transfer column regions are equal. Lengths in the second direction of the second transfer column regions are longer than the length of the first transfer column region, and increase as the second transfer column region is positioned downstream in the charge transfer direction. A third region is disposed to correspond to the first region and extends along the first direction. A fourth region is disposed to correspond to the second region and extends such that an interval between the fourth region and a pixel region increases in response to a change in the lengths of the second transfer column regions.Type: GrantFiled: July 19, 2018Date of Patent: September 21, 2021Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Shin-ichiro Takagi, Yasuhito Yoneta, Masaharu Muramatsu
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Patent number: 11114489Abstract: An image sensor for electrons or 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. The circuit elements are connected by metal interconnects comprising a refractory metal. An anti-reflection or protective layer may be 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: GrantFiled: May 23, 2019Date of Patent: September 7, 2021Assignees: KLA-Tencor Corporation, Hamamatsu Photonics K.K.Inventors: Yung-Ho Alex Chuang, Jingjing Zhang, John Fielden, David L. Brown, Masaharu Muramatsu, Yasuhito Yoneta, Shinya Otsuka
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Patent number: 11094547Abstract: 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: GrantFiled: September 1, 2016Date of Patent: August 17, 2021Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Masaharu Muramatsu, Hisanori Suzuki, Yasuhito Yoneta, Shinya Otsuka, Hirotaka Takahashi
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Patent number: 11088190Abstract: 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: GrantFiled: April 2, 2018Date of Patent: August 10, 2021Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Masaharu Muramatsu, Yasuhito Miyazaki, Hirotaka Takahashi
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Publication number: 20210057477Abstract: A semiconductor device includes a support body including a mount region, a semiconductor chip disposed on the mount region with a predetermined distance therebetween, a bump disposed between the support body and the semiconductor chip, a wall portion disposed between the support body and the semiconductor chip along a part of an outer edge of the semiconductor chip, and an underfill resin layer disposed between the support body and the semiconductor chip. The underfill resin layer covers an outer side surface of the wall portion.Type: ApplicationFiled: November 27, 2018Publication date: February 25, 2021Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Shin-ichiro TAKAGI, Yasuhito YONETA, Masaharu MURAMATSU, Nao INOUE, Hirokazu YAMAMOTO, Shinichi NAKATA, Takuo KOYAMA
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Patent number: 10825730Abstract: 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: GrantFiled: June 5, 2018Date of Patent: November 3, 2020Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Yasuhito Yoneta, Ryoto Takisawa, Shingo Ishihara, Hisanori Suzuki, Masaharu Muramatsu
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Patent number: 10811459Abstract: 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: GrantFiled: August 4, 2015Date of Patent: October 20, 2020Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Shin-ichiro Takagi, Kentaro Maeta, Yasuhito Yoneta, Hisanori Suzuki, Masaharu Muramatsu
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Publication number: 20200212098Abstract: The photosensitive region includes a first impurity region and a second impurity region having a higher impurity concentration than that of the first impurity region. The photosensitive region includes one end positioned away from the transfer section in the second direction and another end positioned closer to the transfer section in the second direction. A shape of the second impurity region in plan view is line-symmetric with respect to a center line of the photosensitive region along the second direction. A width of the second impurity region in the first direction increases in a transfer direction from the one end to the other end. An increase rate of the width of the second impurity region in each of sections, obtained by dividing the photosensitive region into n sections in the second direction, becomes gradually higher in the transfer direction. Here, n is an integer of two or more.Type: ApplicationFiled: July 19, 2018Publication date: July 2, 2020Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Shin-ichiro TAKAGI, Mitsuhito MASE, Jun HIRAMITSU, Yasuhito YONETA, Masaharu MURAMATSU
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Publication number: 20200212097Abstract: A first region includes first transfer column regions distributed in a first direction. A second region includes second transfer column regions distributed in the first direction. The second region is positioned downstream of the first region in a charge transfer direction. Lengths in a second direction of the first transfer column regions are equal. Lengths in the second direction of the second transfer column regions are longer than the length of the first transfer column region, and increase as the second transfer column region is positioned downstream in the charge transfer direction. A third region is disposed to correspond to the first region and extends along the first direction. A fourth region is disposed to correspond to the second region and extends such that an interval between the fourth region and a pixel region increases in response to a change in the lengths of the second transfer column regions.Type: ApplicationFiled: July 19, 2018Publication date: July 2, 2020Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Shin-ichiro TAKAGI, Yasuhito YONETA, Masaharu MURAMATSU
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Patent number: 10700116Abstract: In a back-illuminated solid-state image pickup device, a first group of charge transfer electrodes (vertical shift register) is present in an imaging region, and a second group of charge transfer electrodes (horizontal shift register) is present in a peripheral region around 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: GrantFiled: December 28, 2016Date of Patent: June 30, 2020Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Shinya Otsuka, Hisanori Suzuki, Masaharu Muramatsu
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Patent number: 10573556Abstract: 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: GrantFiled: September 1, 2016Date of Patent: February 25, 2020Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Masaharu Muramatsu, Hisanori Suzuki, Yasuhito Yoneta, Shinya Otsuka, Hirotaka Takahashi
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Patent number: 10573769Abstract: A back-illuminated energy ray detecting element 1 includes a semiconductor substrate and a protective film. The semiconductor substrate has a first principal surface as an energy ray incident surface and a second principal surface opposite to the first principal surface, and a charge generating region configured to generate an electric charge according to incidence of an energy ray is disposed on the second principal surface side. The protective film is disposed on the second principal surface side of the semiconductor substrate to cover at least the charge generating region, and includes silicon nitride or silicon nitride oxide. The protective film has a stress alleviating section configured to alleviate stress generated in the protective film.Type: GrantFiled: January 24, 2014Date of Patent: February 25, 2020Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Yasuhito Miyazaki, Kentaro Maeta, Masaharu Muramatsu
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Publication number: 20190386054Abstract: An image sensor for electrons or 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. The circuit elements are connected by metal interconnects comprising a refractory metal. An anti-reflection or protective layer may be 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: ApplicationFiled: May 23, 2019Publication date: December 19, 2019Inventors: Yung-Ho Alex Chuang, Jingling Zhang, John Fielden, David L. Brown, Masaharu Muramatsu, Yasuhito Yoneta, Shinya Otsuka