Patents by Inventor Yoshimasa Uchinuma

Yoshimasa Uchinuma 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: 11373941
    Abstract: A semiconductor device includes a semiconductor chip, first and second source terminals and a Kelvin terminal, wherein the semiconductor chip includes a first source electrode coupled to the first source terminal through a first connecting portion, a second source electrode coupled to the second source terminal through a second connecting portion, a Kelvin pad coupled to the Kelvin terminal and formed independently of the first source electrode, a power MOSFET that has a source coupled to the first source electrode, a sense MOSFET that has a source coupled to the second source electrode, a source pad formed on a portion of the first source electrode and coupled to the first connecting portion, a plurality of source potential extraction ports formed around a connection point between the first connecting portion and the source pad and a plurality of wires coupled between the source potential extraction ports and the Kelvin pad.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: June 28, 2022
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Yoshimasa Uchinuma, Yusuke Ojima
  • Publication number: 20220115306
    Abstract: A semiconductor device includes a semiconductor chip, first and second source terminals and a Kelvin terminal, wherein the semiconductor chip includes a first source electrode coupled to the first source terminal through a first connecting portion, a second source electrode coupled to the second source terminal through a second connecting portion, a Kelvin pad coupled to the Kelvin terminal and formed independently of the first source electrode, a power MOSFET that has a source coupled to the first source electrode, a sense MOSFET that has a source coupled to the second source electrode, a source pad formed on a portion of the first source electrode and coupled to the first connecting portion, a plurality of source potential extraction ports formed around a connection point between the first connecting portion and the source pad and a plurality of wires coupled between the source potential extraction ports and the Kelvin pad.
    Type: Application
    Filed: October 12, 2020
    Publication date: April 14, 2022
    Inventors: Yoshimasa UCHINUMA, Yusuke OJIMA
  • Publication number: 20180374847
    Abstract: A method of manufacturing a semiconductor apparatus includes setting first and second areas on a semiconductor chip, forming a first transistor in the first area, forming a second transistor in the second area, and forming a gate pad of a first transistor and a gate pad of a second transistor in the second area.
    Type: Application
    Filed: August 30, 2018
    Publication date: December 27, 2018
    Inventors: Junichi Nita, Kazutaka Suzuki, Takahiro Korenari, Yoshimasa Uchinuma
  • Patent number: 10121784
    Abstract: A semiconductor apparatus includes a first area, a first transistor being formed in two or more divided areas of the first area, and a second area, a second transistor being formed in two or more divided areas of the second area. The number of areas of the second area is greater than the number of areas of the first area, the divided areas of the first area and the second area are alternately arranged, and the gate pad of the first transistor and the gate pad of the second transistor are formed in the second area.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: November 6, 2018
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Junichi Nita, Kazutaka Suzuki, Takahiro Korenari, Yoshimasa Uchinuma
  • Publication number: 20160163698
    Abstract: A semiconductor apparatus includes a first area, a first transistor being formed in two or more divided areas of the first area, and a second area, a second transistor being formed in two or more divided areas of the second area. The number of areas of the second area is greater than the number of areas of the first area, the divided areas of the first area and the second area are alternately arranged, and the gate pad of the first transistor and the gate pad of the second transistor are formed in the second area.
    Type: Application
    Filed: February 16, 2016
    Publication date: June 9, 2016
    Inventors: Junichi NITA, Kazutaka SUZUKI, Takahiro KORENARI, Yoshimasa UCHINUMA
  • Patent number: 9293456
    Abstract: According to one embodiment, a semiconductor apparatus divides each of a first area in which a first transistor is formed and a second area in which a second transistor is formed into two or more areas, and alternately arranges the divided areas of the first area and the second area. Further, the semiconductor apparatus according to one embodiment configures the second area to have a total area larger than that of the first area or to have the number of divisions greater than that of the first area. Furthermore, in the semiconductor apparatus according to one embodiment, a gate pad of the first transistor and a gate pad of the second transistor are provided in the second area.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: March 22, 2016
    Assignee: Renesas Electronics Corporation
    Inventors: Junichi Nita, Kazutaka Suzuki, Takahiro Korenari, Yoshimasa Uchinuma
  • Publication number: 20150129958
    Abstract: According to one embodiment, a semiconductor apparatus divides each of a first area in which a first transistor is formed and a second area in which a second transistor is formed into two or more areas, and alternately arranges the divided areas of the first area and the second area. Further, the semiconductor apparatus according to one embodiment configures the second area to have a total area larger than that of the first area or to have the number of divisions greater than that of the first area. Furthermore, in the semiconductor apparatus according to one embodiment, a gate pad of the first transistor and a gate pad of the second transistor are provided in the second area.
    Type: Application
    Filed: October 7, 2014
    Publication date: May 14, 2015
    Inventors: Junichi Nita, Kazutaka Suzuki, Takahiro Korenari, Yoshimasa Uchinuma