Patents by Inventor Motoi Ichihashi

Motoi Ichihashi 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: 20230132912
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to a logic cell layout design for high density transistors and methods of manufacture. The structure includes a plurality of active gates in a high density transistor, and at least one dummy gate which is continuous and is adjacent to at least one active gate of the active gates in a multi-row cell of the high density transistor.
    Type: Application
    Filed: November 1, 2021
    Publication date: May 4, 2023
    Inventors: James P. Mazza, Elizabeth Strehlow, Motoi Ichihashi, Xuelian Zhu, Jia Zeng
  • Patent number: 11101170
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to a dual airgap structure and methods of manufacture. The structure includes: a lower metal line; a plurality of upper metal lines; and a first airgap between the lower metal line and at least one upper metal line of the plurality of upper metal lines.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: August 24, 2021
    Assignee: GLOBALFOUNDRIES U.S. INC.
    Inventors: Motoi Ichihashi, Atsushi Ogino
  • Publication number: 20190333801
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to a dual airgap structure and methods of manufacture. The structure includes: a lower metal line; a plurality of upper metal lines; and a first airgap between the lower metal line and at least one upper metal line of the plurality of upper metal lines.
    Type: Application
    Filed: July 12, 2019
    Publication date: October 31, 2019
    Inventors: Motoi ICHIHASHI, Atsushi OGINO
  • Patent number: 10395980
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to a dual airgap structure and methods of manufacture. The structure includes: a lower metal line; a plurality of upper metal lines; and a first airgap between the lower metal line and at least one upper metal line of the plurality of upper metal lines.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: August 27, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Motoi Ichihashi, Atsushi Ogino
  • Publication number: 20190259649
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to a dual airgap structure and methods of manufacture. The structure includes: a lower metal line; a plurality of upper metal lines; and a first airgap between the lower metal line and at least one upper metal line of the plurality of upper metal lines.
    Type: Application
    Filed: February 21, 2018
    Publication date: August 22, 2019
    Inventors: Motoi ICHIHASHI, Atsushi OGINO
  • Patent number: 9953699
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to a static random access memory assist circuit and methods of implementation and manufacture. The structure includes at least one static random access memory (SRAM) cell and a read assist circuit structured to apply a negative voltage to the at least one SRAM cell upon asserting of a wordline of the at least one SRAM cell.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: April 24, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventor: Motoi Ichihashi
  • Publication number: 20180012648
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to a static random access memory assist circuit and methods of implementation and manufacture. The structure includes at least one static random access memory (SRAM) cell and a read assist circuit structured to apply a negative voltage to the at least one SRAM cell upon asserting of a wordline of the at least one SRAM cell.
    Type: Application
    Filed: July 7, 2016
    Publication date: January 11, 2018
    Inventor: Motoi ICHIHASHI
  • Publication number: 20170373071
    Abstract: A semiconductor memory structure includes adjacent cross-sectionally rectangular-shaped bottom source and drain electrodes, the electrodes including n-type electrode(s) and p-type electrode(s), and vertical channel transistors on one or more of the n-type electrode(s) and one or more of the p-type electrode(s); each vertical channel transistor including a vertical channel and a gate electrode wrapped therearound, some of the transistors including pull-up transistors. The semiconductor memory structure further includes a routing gate electrode for each gate electrode, and a shared contact having at least two parts, each part situated over the routing gate electrodes for the pull-up transistors. A unit semiconductor memory cell, the semiconductor memory structure and a corresponding method of forming the memory structure are also provided.
    Type: Application
    Filed: June 27, 2016
    Publication date: December 28, 2017
    Applicant: GLOBALFOUNDRIES Inc.
    Inventors: Kwan-Yong LIM, Motoi ICHIHASHI, Youngtag WOO, Deepak NAYAK
  • Patent number: 9711511
    Abstract: A semiconductor memory structure (e.g., SRAM) includes vertical channels with a circular, square or rectangular cross-sectional shape. Each unit cell can include a single pull-up vertical transistor and either: one pull-down vertical transistor and one pass-gate vertical transistor; or two or more of each of the pull-down and pass-gate vertical transistors. The structure may be realized by providing adjacent layers of undoped semiconductor material, forming vertical channels for vertical transistors, the vertical channels situated on each of the adjacent layers, doping a first half of each of the adjacent layers with a n-type or p-type dopant, doping a second half of each of the adjacent layers with an opposite type dopant to that of the first half, forming wrap-around gates surrounding the vertical channels, and forming top electrodes for the vertical transistors.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: July 18, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Kwan-Yong Lim, Ryan Ryoung-Han Kim, Motoi Ichihashi, Youngtag Woo, Deepak Nayak
  • Publication number: 20150295678
    Abstract: A 4B5B encoder converts an inputted 4-bit data into a pattern of a 5-bit data in which (i) the number of bits of consecutive “0” data values is permitted to be maximum two, and, simultaneously, (ii) maximum one bit of head end two bits is permitted to have a “0” data value and maximum one bit of tail end two bits is permitted to have a “0” data value. A 5N-bit command encoder converts a command into a command pattern in which the number of bits contained in consecutive “0” data values is permitted to be maximum two. The data after the conversion and the command after the conversion are converted into NRZI codes by an NRZI encoder.
    Type: Application
    Filed: June 25, 2015
    Publication date: October 15, 2015
    Inventors: Masayoshi TERABE, Hirofumi YAMAMOTO, Motoi ICHIHASHI, Naoki SUGIYAMA
  • Publication number: 20120327942
    Abstract: A communication network system including a plurality of nodes disposed on a communication bus, and where each of the nodes is capable of transitioning between a normal operation mode and a low electricity consumption mode. The communication network system controls only a required node, in order to communicate with such required node, by transitioning the required node from the low power mode to the normal operation mode. To control the mode of the required nodes, a controlling node keeps a signal change state of the communication bus for a period that is longer than a normal communication frame length. The required node determines whether the period of the signal change state is longer than a threshold of the required node itself, to output a wakeup signal to a control circuit.
    Type: Application
    Filed: June 26, 2012
    Publication date: December 27, 2012
    Applicant: DENSO CORPORATION
    Inventors: Masayoshi Terabe, Motoi Ichihashi, Yuuki Horii, Takashi Abe
  • Publication number: 20120324320
    Abstract: A 4B5B encoder converts an inputted 4-bit data into a pattern of a 5-bit data in which (i) the number of bits of consecutive “0” data values is permitted to be maximum two, and, simultaneously, (ii) maximum one bit of head end two bits is permitted to have a “0” data value and maximum one bit of tail end two bits is permitted to have a “0” data value. A 5N-bit command encoder converts a command into a command pattern in which the number of bits contained in consecutive “0” data values is permitted to be maximum two. The data after the conversion and the command after the conversion are converted into NRZI codes by an NRZI encoder.
    Type: Application
    Filed: June 12, 2012
    Publication date: December 20, 2012
    Applicant: DENSO CORPORATION
    Inventors: Masayoshi Terabe, Hirofumi Yamamoto, Motoi Ichihashi, Naoki Sugiyama
  • Patent number: 6859917
    Abstract: Disclosed is a semiconductor integrated circuit realizing improved operating speed, reduced power consumption in an active mode, reduced power consumption in a standby mode, and reduced area of a chip. A first logic gate using a first pair of potentials VDDL, VSSL having a relatively small potential difference as an operation power source and a second logic gate using a second pair of potentials VDDH, VSSH having a relatively large potential difference as an operation power source commonly use substrate potentials VBP, VBN of MIS transistors. The second logic gate has a relatively high driving capability, and the first logic gate can operate on relatively low power. The MIS transistor has a threshold voltage which increases by a reverse substrate bias and decreases by a forward substrate bias. By commonly using the substrate potential, even in the case where different substrate bias states are generated at both of the logic gates, MOS transistors of the logic gates can be formed in the common well region.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: February 22, 2005
    Assignee: Renesas Technology Corp.
    Inventors: Yasuhisa Shimazaki, Motoi Ichihashi
  • Patent number: 6842045
    Abstract: Disclosed is a semiconductor integrated circuit realizing improved operating speed, reduced power consumption in an active mode, reduced power consumption in a standby mode, and reduced area of a chip. A first logic gate using a first pair of potentials VDDL, VSSL having a relatively small potential difference as an operation power source and a second logic gate using a second pair of potentials VDDH, VSSH having a relatively large potential difference as an operation power source commonly use substrate potentials VBP, VBN of MIS transistors. The second logic gate has a relatively high driving capability, and the first logic gate can operate on relatively low power. The MIS transistor has a threshold voltage which increases by a reverse substrate bias and decreases by a forward substrate bias. By commonly using the substrate potential, even in the case where different substrate bias states are generated at both of the logic gates, MOS transistors of the logic gates can be formed in the common well region.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: January 11, 2005
    Assignee: Renesas Technology Corp.
    Inventors: Yasuhisa Shimazaki, Motoi Ichihashi
  • Patent number: 6831483
    Abstract: Disclosed is a semiconductor integrated circuit realizing improved operating speed, reduced power consumption in an active mode, reduced power consumption in a standby mode, and reduced area of a chip. A first logic gate using a first pair of potentials VDDL, VSSL having a relatively small potential difference as an operation power source and a second logic gate using a second pair of potentials VDDH, VSSH having a relatively large potential difference as an operation power source commonly use substrate potentials VBP, VBN of MIS transistors. The second logic gate has a relatively high driving capability, and the first logic gate can operate on relatively low power. The MIS transistor has a threshold voltage which increases by a reverse substrate bias and decreases by a forward substrate bias. By commonly using the substrate potential, even in the case where different substrate bias states are generated at both of the logic gates, MOS transistors of the logic gates can be formed in the common well region.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: December 14, 2004
    Assignee: Renesas Technology Corp.
    Inventors: Yasuhisa Shimazaki, Motoi Ichihashi
  • Publication number: 20040051556
    Abstract: Disclosed is a semiconductor integrated circuit realizing improved operating speed, reduced power consumption in an active mode, reduced power consumption in a standby mode, and reduced area of a chip. A first logic gate using a first pair of potentials VDDL, VSSL having a relatively small potential difference as an operation power source and a second logic gate using a second pair of potentials VDDH, VSSH having a relatively large potential difference as an operation power source commonly use substrate potentials VBP, VBN of MIS transistors. The second logic gate has a relatively high driving capability, and the first logic gate can operate on relatively low power. The MIS transistor has a threshold voltage which increases by a reverse substrate bias and decreases by a forward substrate bias. By commonly using the substrate potential, even in the case where different substrate bias states are generated at both of the logic gates, MOS transistors of the logic gates can be formed in the common well region.
    Type: Application
    Filed: August 15, 2003
    Publication date: March 18, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Yasuhisa Shimazaki, Motoi Ichihashi
  • Publication number: 20020113616
    Abstract: Disclosed is a semiconductor integrated circuit realizing improved operating speed, reduced power consumption in an active mode, reduced power consumption in a standby mode, and reduced area of a chip. A first logic gate using a first pair of potentials VDDL, VSSL having a relatively small potential difference as an operation power source and a second logic gate using a second pair of potentials VDDH, VSSH having a relatively large potential difference as an operation power source commonly use substrate potentials VBP, VBN of MIS transistors. The second logic gate has a relatively high driving capability, and the first logic gate can operate on relatively low power. The MIS transistor has a threshold voltage which increases by a reverse substrate bias and decreases by a forward substrate bias. By commonly using the substrate potential, even in the case where different substrate bias states are generated at both of the logic gates, MOS transistors of the logic gates can be formed in the common well region.
    Type: Application
    Filed: April 24, 2002
    Publication date: August 22, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Yasuhisa Shimazaki, Motoi Ichihashi
  • Publication number: 20010043085
    Abstract: Disclosed is a semiconductor integrated circuit realizing improved operating speed, reduced power consumption in an active mode, reduced power consumption in a standby mode, and reduced area of a chip. A first logic gate using a first pair of potentials VDDL, VSSL having a relatively small potential difference as an operation power source and a second logic gate using a second pair of potentials VDDH, VSSH having a relatively large potential difference as an operation power source commonly use substrate potentials VBP, VBN of MIS transistors. The second logic gate has a relatively high driving capability, and the first logic gate can operate on relatively low power. The MIS transistor has a threshold voltage which increases by a reverse substrate bias and decreases by a forward substrate bias. By commonly using the substrate potential, even in the case where different substrate bias states are generated at both of the logic gates, MOS transistors of the logic gates can be formed in the common well region.
    Type: Application
    Filed: May 16, 2001
    Publication date: November 22, 2001
    Inventors: Yasuhisa Shimazaki, Motoi Ichihashi