Patents by Inventor Hiroyuki Ogawa

Hiroyuki Ogawa 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: 20170162592
    Abstract: A vertical, columnar resistor in a semiconductor device is provided, along with techniques for fabricating such a resistor. The resistor may be provided in a peripheral area of a 3D memory device which has a two-tier or other multi-tier stack of memory cells. The structure and fabrication of the resistor can be integrated with the structure and fabrication of the stack of memory cells. The resistor may comprise doped polysilicon. In an example implementation, a polysilicon pillar extends a height of a first tier of the stack and a metal pillar above the polysilicon pillar extends a height of a second tier of the stack.
    Type: Application
    Filed: December 4, 2015
    Publication date: June 8, 2017
    Applicant: SanDisk Technologies Inc.
    Inventors: Masatoshi Nishikawa, Kota Funayama, Toru Miwa, Hiroyuki Ogawa
  • Publication number: 20170154925
    Abstract: A non-volatile data storage device comprises pairs of immediately adjacent and isolated-from-one-another local bit lines that are independently driven by respective and vertically oriented bit line selector devices. The isolation between the immediately adjacent and isolated-from-one-another local bit lines also isolates from one another respective memory cells of the non-volatile data storage device such that leakage currents cannot flow from memory cells connected to a first of the immediately adjacent and isolated-from-one-another local bit lines to memory cells connected to the second of the pair of immediately adjacent and isolated-from-one-another local bit lines. A method programming a desire one of the memory cells includes applying boosting voltages to word lines adjacent to the bit line of the desired memory cell while not applying boosting voltages to word lines adjacent to the other bit line of the pair.
    Type: Application
    Filed: February 13, 2017
    Publication date: June 1, 2017
    Applicant: SanDisk Technologies LLC
    Inventors: Seiji Shimabukuro, Teruyuki Mine, Hiroyuki Ogawa, Naoki Takeguchi
  • Publication number: 20170148809
    Abstract: Split memory cells can be provided within an alternating stack of insulating layers and word lines. At least one lower-select-gate-level electrically conductive layers and/or at least one upper-select-level electrically conductive layers without a split memory cell configuration can be provided by limiting the levels of separator insulator structures within the levels of the word lines. At least one etch stop layer can be formed above at least one lower-select-gate-level spacer material layer. An alternating stack of insulating layers and spacer material layers is formed over the at least one etch stop layer. Separator insulator structures are formed through the alternating stack employing the etch stop layer as a stopping structure. Upper-select-level spacer material layers can be subsequently formed. The spacer material layers and the select level material layers are formed as, or replaced with, electrically conductive layers.
    Type: Application
    Filed: July 26, 2016
    Publication date: May 25, 2017
    Inventors: Masatoshi NISHIKAWA, Masafumi MIYAMOTO, Hiroyuki OGAWA
  • Publication number: 20170125433
    Abstract: A three-dimensional semiconductor device includes an alternating stack of insulating layers and electrically conductive layers located over a substrate, memory stack structures extending through the alternating stack and arranged in at least five rows that extend along a first horizontal direction, contact via structures arranged in a same number of rows as the memory stack structures and overlying the memory stack structures, each of the contact via structures being electrically connected to a semiconductor channel of a respective memory stack structure, bit lines contacting a respective contact via structure and extending along a second horizontal direction that is different from the first horizontal direction, and a pair of wall-shaped via structures extending through the alternating stack and laterally extending along the first horizontal direction.
    Type: Application
    Filed: June 6, 2016
    Publication date: May 4, 2017
    Inventors: Hiroyuki OGAWA, Hiroyuki TANAKA
  • Publication number: 20170092654
    Abstract: An alternating stack of insulating layers and sacrificial material layers are formed over a substrate. Memory stack structures are formed through the alternating stack. A backside trench is formed and the sacrificial material layers are replaced with electrically conductive layers. After formation of an insulating spacer in the trench, an epitaxial pedestal structure is grown from a semiconductor portion underlying the backside trench. A source region is formed by introducing dopants into the epitaxial pedestal structure and an underlying semiconductor portion during and/or after epitaxial growth. Alternatively, the backside trench can be formed concurrently with formation of memory openings. An epitaxial pedestal structure can be formed concurrently with formation of epitaxial channel portions at the bottom of each memory opening.
    Type: Application
    Filed: September 28, 2015
    Publication date: March 30, 2017
    Inventors: Masatoshi NISHIKAWA, Kiyohiko SAKAKIBARA, Hiroyuki OGAWA, Shuji MINAGAWA
  • Publication number: 20170090625
    Abstract: A touch panel is realized that is able to decrease the amount of dead space at the periphery of the touch panel and that has highly accurate touch panel sensitivity. In a touch panel, Y direction conductive patterns are arranged so as to be separated from wiring patterns in Y direction conductive pattern regions between electrode units of X direction conductive patterns. As a result, in this conductive sheet, it is possible to appropriately prevent the occurrence of parasitic capacitance resulting from the Y direction conductive patterns and the wiring patterns. Therefore, in a touch panel device or the like that uses such a touch panel, it is possible to effectively prevent the generation of noise that overlaps sense signals as a result of the above-mentioned parasitic capacitance, thereby making it possible to realize highly accurate touch panel sensitivity.
    Type: Application
    Filed: May 15, 2015
    Publication date: March 30, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hiroki MAKINO, Mikihiro NOMA, Tomotoshi TSUJIOKA, Daiji KITAGAWA, Hiroyuki OGAWA, Yasuhiro SUGITA
  • Patent number: 9608043
    Abstract: A non-volatile data storage device comprises pairs of immediately adjacent and isolated-from-one-another local bit lines that are independently driven by respective and vertically oriented bit line selector devices. The isolation between the immediately adjacent and isolated-from-one-another local bit lines also isolates from one another respective memory cells of the non-volatile data storage device such that leakage currents cannot flow from memory cells connected to a first of the immediately adjacent and isolated-from-one-another local bit lines to memory cells connected to the second of the pair of immediately adjacent and isolated-from-one-another local bit lines. A method programming a desire one of the memory cells includes applying boosting voltages to word lines adjacent to the bit line of the desired memory cell while not applying boosting voltages to word lines adjacent to the other bit line of the pair.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: March 28, 2017
    Assignee: SanDisk Technologies LLC
    Inventors: Seiji Shimabukuro, Teruyuki Mine, Hiroyuki Ogawa, Naoki Takeguchi
  • Patent number: 9601508
    Abstract: An alternating stack of insulating layers and sacrificial material layers is formed over a substrate. After formation of a memory opening, all surfaces of the memory opening are provided as silicon oxide surfaces by formation of at least one silicon oxide portion. A silicon nitride layer is formed in the memory opening. After formation of a memory stack structure, backside recesses can be formed employing the silicon oxide portions as an etch stop. The silicon oxide portions can be subsequently removed employing the silicon nitride layer as an etch stop. Physically exposed portions of the silicon nitride layer can be removed selective to the memory stack structure. Damage to the outer layer of the memory stack structure can be minimized or eliminated by successive use of etch stop structures. Electrically conductive layers can be subsequently formed in the backside recesses.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: March 21, 2017
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Jongsun Sel, Chan Park, Atsushi Suyama, Frank Yu, Hiroyuki Ogawa, Ryoichi Honma, Kensuke Yamaguchi, Hiroaki Iuchi, Naoki Takeguchi, Tuan Pham, Kiyohiko Sakakibara, Jiao Chen
  • Patent number: 9595535
    Abstract: Word line switches in a word line decoder circuitry for a three-dimensional memory device can be formed as vertical field effect transistors overlying contact via structures to the electrically conductive layers for word lines. Via cavities in a dielectric material portion overlying stepped surfaces of the electrically conductive layers can be filled with a conductive material and recessed to form contact via structures. After forming lower active regions in the recesses, gate electrodes can be formed and patterned to form openings in areas overlying the contact via structures. Gate dielectrics can be formed on the sidewalls of the openings, and transistor channels can be formed inside the openings of the gate electrodes. Upper active regions can be formed over the transistor channels.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: March 14, 2017
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Hiroyuki Ogawa, Makoto Yoshida, Kazutaka Yoshizawa, Takuya Ariki, Toru Miwa
  • Patent number: 9589839
    Abstract: Corner rounding of electrically conductive layers in a replacement electrode integration scheme can be alleviated by employing compositionally modulated sacrificial material layers. An alternating stack of insulating layers and compositionally modulated sacrificial material layers can be formed over a substrate. Each of the compositionally modulated sacrificial material layers has a vertical modulation of material composition such that each compositionally modulated sacrificial material layer provides greater resistance to conversion into a silicon-oxide-containing material at upper and lower portions thereof than at a middle portion thereof during a subsequent oxidation process. Bird's beak features can be formed with lesser dimensions, and electrically conductive layers formed by replacement of remaining portions of the sacrificial material layers with a conductive material can have less corner rounding.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: March 7, 2017
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Yusuke Ikawa, Kiyohiko Sakakibara, Eisuke Takii, Kengo Kajiwara, Seiji Shimabukuro, Akira Matsudaira, Hiroyuki Ogawa
  • Patent number: 9590827
    Abstract: A distortion compensation apparatus including: an amplifier configured to amplify an input signal including a transmission signal and an impulse signal, the transmission signal being converted to a radio frequency signal for transmission, the impulse signal being not converted to a radio signal for transmission, a memory configured to store a plurality of distortion compensation coefficients for compensating distortion to the input signal, each of the plurality of distortion compensation coefficients being associated with an amplitude of the input signal, and a processor configured to select a distortion compensation coefficient from the plurality of distortion compensation coefficients based on an amplitude of the impulse signal included in the input signal, and update the selected distortion compensation coefficient based on the amplified impulse signal include in the amplified input signal.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: March 7, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Yoshinobu Shizawa, Hiroaki Maeda, Junya Morita, Hiroyuki Ogawa, Yousuke Okazaki, Satoshi Matsubara
  • Patent number: 9581225
    Abstract: A continuously variable transmission includes: first to third power transmission components; a rolling component; a support shaft for the rolling component; a first guide member that includes a first guide portion for guiding a first protrusion portion of the inserted support shaft; a gear shift member that includes a gear change portion; a first actuator which tilts each rolling component by moving each second protrusion portion along the gear change portion with rotation of the gear shift member at a time an input-output gear ratio is changed; a second guide member that includes a second guide portion for guiding a second protrusion portion of the inserted support shaft; and a second actuator which prohibits rotation of the second guide member during reverse rotation of the first and second power transmission components and allows rotation of the second guide member during normal rotation of the first and second power transmission components.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: February 28, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroyuki Ogawa
  • Publication number: 20170045988
    Abstract: A touch panel includes: a first substrate; a second substrate disposed on a viewer side of the first substrate; a liquid crystal layer provided between the first substrate and the second substrate; a plurality of pixel electrodes and a common electrode for applying a voltage to the liquid crystal layer; and a plurality of detection electrodes and a plurality of driving electrodes for a touch sensor. The first substrate includes: a first transparent substrate; and the plurality of pixel electrodes, which are formed on the liquid crystal layer side of the first transparent substrate. The second substrate includes: a second transparent substrate; and the plurality of driving electrodes and the plurality of detection electrodes formed on the liquid crystal layer side of the second transparent substrate. The touch panel does not include a conductive layer on the viewer side of the second transparent substrate.
    Type: Application
    Filed: February 19, 2015
    Publication date: February 16, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yasuhiro SUGITA, Kenshi TADA, Hiroyuki OGAWA, Shinji YAMAGISHI, Jean MUGIRANEZA, Koichi MIYACHI, Hidefumi YOSHIDA, Mitsuhiro MURATA, Kohhei TANAKA
  • Patent number: 9548313
    Abstract: A method of making a monolithic three dimensional NAND string includes forming a select gate layer of a third material over a major surface of a substrate, forming a stack of alternating first material and second material layers over the select gate layer, where the first material, the second material and the third material are different from each other, and etching the stack using a first etch chemistry to form at least one opening in the stack at least to the select gate layer, such that the select gate layer acts as an etch stop layer during the step of etching.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: January 17, 2017
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Shinsuke Yada, Shigehiro Fujino, Hajime Kimura, Masanori Terahara, Ryoichi Honma, Hiroyuki Ogawa, Ryousuke Itou
  • Patent number: 9530785
    Abstract: A memory stack structure for a three-dimensional device includes an alternating stack of insulator layers and spacer material layers. A memory opening is formed through the alternating stack. A memory material layer, a tunneling dielectric layer, and a silicon oxide liner are formed in the memory opening. A sacrificial liner is subsequently formed over the tunneling dielectric layer. The layer stack is anisotropically etched to physically expose a semiconductor surface of the substrate underneath the memory opening. The sacrificial liner may be removed prior to, or after, the anisotropic etch. The silicon oxide liner is removed after the anisotropic etch. A semiconductor channel layer can be deposited directly on the tunneling dielectric layer as a single material layer without any interface therein.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: December 27, 2016
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Sateesh Koka, Zhenyu Lu, Wei Zhao, Ching-Huang Lu, Henry Chien, Yingda Dong, Raghuveer S. Makala, Somesh Peri, Rahul Sharangpani, George Matamis, Yuichi Ikezono, Hiroyuki Ogawa
  • Publication number: 20160329341
    Abstract: A monolithic three dimensional memory device includes a semiconductor substrate having a major surface and a doped well region of a first conductivity type extending substantially parallel to the major surface of the semiconductor substrate, a plurality of NAND memory strings extending substantially perpendicular to the major surface of the semiconductor substrate, and a plurality of substantially pillar-shaped support members extending substantially perpendicular to the major surface of the semiconductor substrate, each support member including an electrically insulating outer material surrounding an electrically conductive core material that extends substantially perpendicular to the major surface of the semiconductor substrate and electrically contacting the doped well region.
    Type: Application
    Filed: July 22, 2016
    Publication date: November 10, 2016
    Inventors: Seiji Shimabukuro, Ryoichi Honma, Hiroyuki Ogawa, Yuki Mizutani, Fumiaki Toyama
  • Publication number: 20160315095
    Abstract: An alternating stack of insulating layers and sacrificial material layers is formed over a substrate. After formation of a memory opening, all surfaces of the memory opening are provided as silicon oxide surfaces by formation of at least one silicon oxide portion. A silicon nitride layer is formed in the memory opening. After formation of a memory stack structure, backside recesses can be formed employing the silicon oxide portions as an etch stop. The silicon oxide portions can be subsequently removed employing the silicon nitride layer as an etch stop. Physically exposed portions of the silicon nitride layer can be removed selective to the memory stack structure. Damage to the outer layer of the memory stack structure can be minimized or eliminated by successive use of etch stop structures. Electrically conductive layers can be subsequently formed in the backside recesses.
    Type: Application
    Filed: October 23, 2015
    Publication date: October 27, 2016
    Inventors: Jongsun Sel, Chan Park, Atsushi Suyama, Frank Yu, Hiroyuki Ogawa, Ryoichi Honma, Kensuke Yamaguchi, Hiroaki Iuchi, Naoki Takeguchi, Tuan Pham, Kiyohiko Sakakibara, Jiao Chen
  • Publication number: 20160307917
    Abstract: A select gate transistor for a NAND device includes a select gate electrode having a first side, a second side, and top and a bottom, a semiconductor channel located adjacent to the first side, the second side and the bottom of the select gate electrode, and a gate insulating layer located between the channel and the first side, the second side and the bottom of the select gate electrode.
    Type: Application
    Filed: June 27, 2016
    Publication date: October 20, 2016
    Inventors: Shinsuke Yada, Hiroyuki Ogawa
  • Patent number: 9460895
    Abstract: A gas supply method includes controlling communication between first and second gas pipes and a diffusion chamber using first and second valves; controlling discharge of gas within the first and second gas pipes using third and fourth valves connected upstream from the first and second valves; and controlling communication between an exhaust pipe and the diffusion chamber using a fifth valve. The gas supply method further includes a first pressurization step of closing the first valve and the third valve before starting a first step and pressurizing a first gas within the first gas pipe; a second pressurization step of closing the second valve and the fourth valve before starting a second step and pressurizing a second gas within the second gas pipe; and an exhaust step of opening the fifth valve upon starting the first step and the second step, and discharging gas within the diffusion chamber.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: October 4, 2016
    Assignee: Tokyo Electron Limited
    Inventors: Hideyuki Hatoh, Hiroyuki Ogawa
  • Publication number: 20160284581
    Abstract: Provided are a substrate processing apparatus, a method of processing a substrate, a method of manufacturing a semiconductor device, and a non-transitory computer readable recording medium storing a program for performing the method of manufacturing the semiconductor device, that are capable of improving manufacturing throughput of the apparatus. The substrate processing apparatus includes a substrate to be processed, a transfer chamber under a vacuum atmosphere, a substrate transfer unit installed at the transfer chamber and configured to transfer the substrate, at least two process chambers installed near the transfer chamber and configured to process the substrate, at least two gate valves installed between the transfer chamber and the at least two process chambers, and a control unit configured to control the substrate transfer unit and the at least two gate valves, wherein the control unit opens and closes the at least two gate valves while the substrate transfer unit transfers the substrate.
    Type: Application
    Filed: June 14, 2016
    Publication date: September 29, 2016
    Inventors: Takeshi YASUI, Naoya MATSUURA, Mitsuru FUKUDA, Hiroyuki OGAWA