Patents by Inventor Tomoaki Ikegami

Tomoaki Ikegami 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: 9373611
    Abstract: First, second, and third power wirings and plurality of first signal wirings are formed on the upper layer of a semiconductor substrate, and at least one second signal wiring is formed on the upper layer of the plurality of first signal wirings. First and second power wirings are mutually separated in the cell height direction and extended in the cell width direction. Third power wiring extends between the first and second power wirings in the cell width direction. The plurality of first signal wirings are separated from first, second, and third power wirings, and electrically connected to at least one of the plurality of circuit elements. At least one second signal wiring extends in the cell width direction, and electrically connected to at least one of the plurality of circuit elements and the plurality of first signal wirings.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: June 21, 2016
    Assignee: SOCIONEXT INC.
    Inventors: Hidetoshi Nishimura, Tomoaki Ikegami
  • Patent number: 9142539
    Abstract: A standard cell has gate patterns extending in Y direction and arranged at an equal pitch in X direction. End portions of the gate patterns are located at the same position in Y direction, and have an equal width in X direction. A diode cell is located next to the standard cell in Y direction, and includes a plurality of opposite end portions formed of gate patterns that are opposed to the end portions, in addition to a diffusion layer which functions as a diode.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: September 22, 2015
    Assignee: SOCIONEXT INC.
    Inventors: Tomoaki Ikegami, Kazuyuki Nakanishi, Masaki Tamaru
  • Publication number: 20150137248
    Abstract: A standard cell has gate patterns extending in Y direction and arranged at an equal pitch in X direction. End portions of the gate patterns are located at the same position in Y direction, and have an equal width in X direction. A diode cell is located next to the standard cell in Y direction, and includes a plurality of opposite end portions formed of gate patterns that are opposed to the end portions, in addition to a diffusion layer which functions as a diode.
    Type: Application
    Filed: December 17, 2014
    Publication date: May 21, 2015
    Inventors: Tomoaki IKEGAMI, Kazuyuki NAKANISHI, Masaki TAMARU
  • Patent number: 8946824
    Abstract: A standard cell has gate patterns extending in Y direction and arranged at an equal pitch in X direction. End portions of the gate patterns are located at the same position in Y direction, and have an equal width in X direction. A diode cell is located next to the standard cell in Y direction, and includes a plurality of opposite end portions formed of gate patterns that are opposed to the end portions, in addition to a diffusion layer which functions as a diode.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: February 3, 2015
    Assignee: Panasonic Corporation
    Inventors: Tomoaki Ikegami, Kazuyuki Nakanishi, Masaki Tamaru
  • Publication number: 20140225164
    Abstract: A standard cell has gate patterns extending in Y direction and arranged at an equal pitch in X direction. End portions of the gate patterns are located at the same position in Y direction, and have an equal width in X direction. A diode cell is located next to the standard cell in Y direction, and includes a plurality of opposite end portions formed of gate patterns that are opposed to the end portions, in addition to a diffusion layer which functions as a diode.
    Type: Application
    Filed: April 15, 2014
    Publication date: August 14, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Tomoaki IKEGAMI, Kazuyuki NAKANISHI, Masaki TAMARU
  • Patent number: 8748987
    Abstract: A standard cell has gate patterns extending in Y direction and arranged at an equal pitch in X direction. End portions of the gate patterns are located at the same position in Y direction, and have an equal width in X direction. A diode cell is located next to the standard cell in Y direction, and includes a plurality of opposite end portions formed of gate patterns that are opposed to the end portions, in addition to a diffusion layer which functions as a diode.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: June 10, 2014
    Assignee: Panasonic Corporation
    Inventors: Tomoaki Ikegami, Kazuyuki Nakanishi, Masaki Tamaru
  • Patent number: 8698273
    Abstract: A layout structure of a semiconductor integrated circuit is provided with which narrowing and breaking of metal interconnects near a cell boundary can be prevented without increasing the data amount and processing time for OPC. A cell A and a cell B are adjacent to each other along a cell boundary. The interconnect regions of metal interconnects from which to the cell boundary no other interconnect region exists are placed to be substantially axisymmetric with respect to the cell boundary, while sides of diffusion regions facing the cell boundary are asymmetric with respect to the cell boundary.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: April 15, 2014
    Assignee: Panasonic Corporation
    Inventors: Tomoaki Ikegami, Hidetoshi Nishimura, Kazuyuki Nakanishi
  • Publication number: 20140077307
    Abstract: A standard cell has gate patterns extending in Y direction and arranged at an equal pitch in X direction. End portions of the gate patterns are located at the same position in Y direction, and have an equal width in X direction. A diode cell is located next to the standard cell in Y direction, and includes a plurality of opposite end portions formed of gate patterns that are opposed to the end portions, in addition to a diffusion layer which functions as a diode.
    Type: Application
    Filed: October 24, 2013
    Publication date: March 20, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Tomoaki IKEGAMI, Kazuyuki NAKANISHI, Masaki TAMARU
  • Patent number: 8598668
    Abstract: A standard cell has gate patterns extending in Y direction and arranged at an equal pitch in X direction. End portions of the gate patterns are located at the same position in Y direction, and have an equal width in X direction. A diode cell is located next to the standard cell in Y direction, and includes a plurality of opposite end portions formed of gate patterns that are opposed to the end portions, in addition to a diffusion layer which functions as a diode.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: December 3, 2013
    Assignee: Panasonic Corporation
    Inventors: Tomoaki Ikegami, Kazuyuki Nakanishi, Masaki Tamaru
  • Patent number: 8399928
    Abstract: A standard cell has gate patterns extending in Y direction and arranged at an equal pitch in X direction. End portions of the gate patterns are located at the same position in Y direction, and have an equal width in X direction. A diode cell is located next to the standard cell in Y direction, and includes a plurality of opposite end portions formed of gate patterns that are opposed to the end portions, in addition to a diffusion layer which functions as a diode.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: March 19, 2013
    Assignee: Panasonic Corporation
    Inventors: Tomoaki Ikegami, Kazuyuki Nakanishi, Masaki Tamaru
  • Patent number: 8368225
    Abstract: A layout structure of a semiconductor integrated circuit is provided with which narrowing and breaking of metal interconnects near a cell boundary can be prevented without increasing the data amount and processing time for OPC. A cell A and a cell B are adjacent to each other along a cell boundary. The interconnect regions of metal interconnects from which to the cell boundary no other interconnect region exists are placed to be substantially axisymmetric with respect to the cell boundary, while sides of diffusion regions facing the cell boundary are asymmetric with respect to the cell boundary.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: February 5, 2013
    Assignee: Panasonic Corporation
    Inventors: Tomoaki Ikegami, Hidetoshi Nishimura, Kazuyuki Nakanishi
  • Publication number: 20120256234
    Abstract: First, second, and third power wirings and plurality of first signal wirings are formed on the upper layer of a semiconductor substrate, and at least one second signal wiring is formed on the upper layer of the plurality of first signal wirings. First and second power wirings are mutually separated in the cell height direction and extended in the cell width direction. Third power wiring extends between the first and second power wirings in the cell width direction. The plurality of first signal wirings are separated from first, second, and third power wirings, and electrically connected to at least one of the plurality of circuit elements. At least one second signal wiring extends in the cell width direction, and electrically connected to at least one of the plurality of circuit elements and the plurality of first signal wirings.
    Type: Application
    Filed: March 22, 2012
    Publication date: October 11, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: HIDETOSHI NISHIMURA, TOMOAKI IKEGAMI
  • Publication number: 20110284964
    Abstract: A standard cell has gate patterns extending in Y direction and arranged at an equal pitch in X direction. End portions of the gate patterns are located at the same position in Y direction, and have an equal width in X direction. A diode cell is located next to the standard cell in Y direction, and includes a plurality of opposite end portions formed of gate patterns that are opposed to the end portions, in addition to a diffusion layer which functions as a diode.
    Type: Application
    Filed: July 8, 2011
    Publication date: November 24, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Tomoaki IKEGAMI, Kazuyuki Nakanishi, Masaki Tamaru
  • Publication number: 20110221067
    Abstract: A layout structure of a semiconductor integrated circuit is provided with which narrowing and breaking of metal interconnects near a cell boundary can be prevented without increasing the data amount and processing time for OPC. A cell A and a cell B are adjacent to each other along a cell boundary. The interconnect regions of metal interconnects from which to the cell boundary no other interconnect region exists are placed to be substantially axisymmetric with respect to the cell boundary, while sides of diffusion regions facing the cell boundary are asymmetric with respect to the cell boundary.
    Type: Application
    Filed: May 23, 2011
    Publication date: September 15, 2011
    Applicant: Panasonic Corporation
    Inventors: Tomoaki IKEGAMI, Hidetoshi NISHIMURA, Kazuyuki NAKANISHI
  • Patent number: 8004014
    Abstract: A layout structure of a semiconductor integrated circuit is provided with which narrowing and breaking of metal interconnects near a cell boundary can be prevented without increasing the data amount and processing time for OPC. A cell A and a cell B are adjacent to each other along a cell boundary. The interconnect regions of metal interconnects from which to the cell boundary no other interconnect region exists are placed to be substantially axisymmetric with respect to the cell boundary, while sides of diffusion regions facing the cell boundary are asymmetric with respect to the cell boundary.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: August 23, 2011
    Assignee: Panasonic Corporation
    Inventors: Tomoaki Ikegami, Hidetoshi Nishimura, Kazuyuki Nakanishi
  • Publication number: 20100308377
    Abstract: A semiconductor integrated circuit is provided which entails no increase in the correction time of OPC and in which non-uniformity in the gate lengths due to the optical proximity effects is surely suppressed. A plurality of standard cells (C1, C2, C3, . . . ), each including gates G extended in the vertical direction, are aligned in the transverse direction to form a standard cell row. A plurality of the standard cell rows are located side by side in the vertical direction to form a standard cell group. Each of the standard cell rows has a terminal standard cell Ce at least one end of the standard cell row. The terminal standard cell Ce includes two or more supplementary gates, each of which is any of a dummy gate and a gate of an inactive transistor.
    Type: Application
    Filed: August 17, 2010
    Publication date: December 9, 2010
    Inventors: Kazuyuki NAKANISHI, Hidetoshi Nishimura, Tomoaki Ikegami
  • Patent number: 7800140
    Abstract: A semiconductor integrated circuit is provided which entails no increase in the correction time of OPC and in which non-uniformity in the gate lengths due to the optical proximity effects is surely suppressed. A plurality of standard cells (C1, C2, C3, . . . ), each including gates G extended in the vertical direction, are aligned in the transverse direction to form a standard cell row. A plurality of the standard cell rows are located side by side in the vertical direction to form a standard cell group. Each of the standard cell rows has a terminal standard cell Ce at least one end of the standard cell row. The terminal standard cell Ce includes two or more supplementary gates, each of which is any of a dummy gate and a gate of an inactive transistor.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: September 21, 2010
    Assignee: Panasonic Corporation
    Inventors: Kazuyuki Nakanishi, Hidetoshi Nishimura, Tomoaki Ikegami
  • Publication number: 20100001404
    Abstract: A layout structure of a semiconductor integrated circuit is provided with which narrowing and breaking of metal interconnects near a cell boundary can be prevented without increasing the data amount and processing time for OPC. A cell A and a cell B are adjacent to each other along a cell boundary. The interconnect regions of metal interconnects from which to the cell boundary no other interconnect region exists are placed to be substantially axisymmetric with respect to the cell boundary, while sides of diffusion regions facing the cell boundary are asymmetric with respect to the cell boundary.
    Type: Application
    Filed: August 17, 2009
    Publication date: January 7, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Tomoaki Ikegami, Hidetoshi Nishimura, Kazuyuki Nakanishi
  • Publication number: 20080224176
    Abstract: A semiconductor integrated circuit is provided which entails no increase in the correction time of OPC and in which non-uniformity in the gate lengths due to the optical proximity effects is surely suppressed. A plurality of standard cells (C1, C2, C3, . . . ), each including gates G extended in the vertical direction, are aligned in the transverse direction to form a standard cell row. A plurality of the standard cell rows are located side by side in the vertical direction to form a standard cell group. Each of the standard cell rows has a terminal standard cell Ce at least one end of the standard cell row. The terminal standard cell Ce includes two or more supplementary gates, each of which is any of a dummy gate and a gate of an inactive transistor.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 18, 2008
    Inventors: Kazuyuki Nakanishi, Hidetoshi Nishimura, Tomoaki Ikegami
  • Publication number: 20070200238
    Abstract: In a semiconductor integrated circuit apparatus formed by a core cell constituting a circuit function and a power wiring cell including a power wiring, a metal of a power wiring unit cell constituting the power wiring cell is formed to take a shape of T, and the power wiring unit cell is disposed adjacently, thereby forming a serial power wiring. The core cell and the power wiring cell are connected to each other through a metal wiring in the core cell in which coordinates in a horizontal direction are preset, and a power signal is thus supplied.
    Type: Application
    Filed: February 8, 2007
    Publication date: August 30, 2007
    Inventors: Tomoaki Ikegami, Hidetoshi Nishimura