Patents by Inventor Tsuyoshi ETOU

Tsuyoshi ETOU 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: 20220302106
    Abstract: A semiconductor storage device includes a memory cell array and a peripheral circuit disposed at least partially below the memory cell array. The peripheral circuit includes an RC circuit in which a resistive portion and a capacitive portion are electrically connected to each other in series. The resistive portion includes first and second lower conductors at a level that is below the memory cell array, an upper conductor at a level that is above the memory cell array, a first contact that connects the first lower conductor to the upper conductor, and a second contact that connects the upper conductor to the second lower conductor. The first lower conductor, the first contact, the upper conductor, the second contact, and the second lower conductor are electrically connected in series in this order and the first lower conductor is closest to the capacitive portion.
    Type: Application
    Filed: August 27, 2021
    Publication date: September 22, 2022
    Inventors: Yukihisa FUTAMI, Yasuhiro HEGI, Kenichi KAWABATA, Tsuyoshi ETOU, Haruyuki MIYATA, Kenichi SUGAWARA
  • Patent number: 9639649
    Abstract: According to one embodiment, a semiconductor memory device includes a core section, a corner area adjacent section, a first circuit block and a second circuit block, and multiple wiring layers. The corner area adjacent section is arranged adjacently to a corner area positioned in a corner of the core section adjacently to the sense amplifier and the row decoder. The multiple wiring layers are provided in each of the first circuit block and the second circuit block, wherein a first wire in one of the multiple wiring layers in the first circuit block is arranged parallel to a second wire included in a wiring layer in the second circuit block which is the same as the wiring layer of the first wire.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: May 2, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tsuyoshi Etou, Jumpei Sato, Satoshi Yamano, Osamu Ooto, Souichi Minemura
  • Publication number: 20170053053
    Abstract: According to one embodiment, a semiconductor memory device includes a core section, a corner area adjacent section, a first circuit block and a second circuit block, and multiple wiring layers. The corner area adjacent section is arranged adjacently to a corner area positioned in a corner of the core section adjacently to the sense amplifier and the row decoder. The multiple wiring layers are provided in each of the first circuit block and the second circuit block, wherein a first wire in one of the multiple wiring layers in the first circuit block is arranged parallel to a second wire included in a wiring layer in the second circuit block which is the same as the wiring layer of the first wire.
    Type: Application
    Filed: November 11, 2015
    Publication date: February 23, 2017
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tsuyoshi ETOU, Jumpei SATO, Satoshi YAMANO, Osamu OOTO, Souichi MINEMURA