Patents by Inventor SHINICHI OOHASHI

SHINICHI OOHASHI 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: 10553676
    Abstract: In a semiconductor element having a compound semiconductor layer epitaxially grown on a silicon substrate, an object is to suppress generation of deficiency or problems of reliability deriving from the ends of the element that are generated when dividing into semiconductor devices by dicing. A compound semiconductor layer epitaxially grown on a silicon substrate is formed via a buffer layer made of aluminum nitride. In the periphery of the semiconductor device, a scribe lane is present to surround a semiconductor element region. Along the scribe lane, the aluminum nitride layer is covered with a coating film for protection against humidity and moisture.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: February 4, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hideki Mizuhara, Yoshihiro Matsushima, Shinichi Oohashi
  • Publication number: 20190165098
    Abstract: In a semiconductor element having a compound semiconductor layer epitaxially grown on a silicon substrate, an object is to suppress generation of deficiency or problems of reliability deriving from the ends of the element that are generated when dividing into semiconductor devices by dicing. A compound semiconductor layer epitaxially grown on a silicon substrate is formed via a buffer layer made of aluminum nitride. In the periphery of the semiconductor device, a scribe lane is present to surround a semiconductor element region. Along the scribe lane, the aluminum nitride layer is covered with a coating film for protection against humidity and moisture.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 30, 2019
    Inventors: Hideki MIZUHARA, Yoshihiro MATSUSHIMA, Shinichi OOHASHI
  • Patent number: 10224397
    Abstract: In a semiconductor element having a compound semiconductor layer epitaxially grown on a silicon substrate, an object is to suppress generation of deficiency or problems of reliability deriving from the ends of the element that are generated when dividing into semiconductor devices by dicing. A compound semiconductor layer epitaxially grown on a silicon substrate is formed via a buffer layer made of aluminum nitride. In the periphery of the semiconductor device, a scribe lane is present to surround a semiconductor element region. Along the scribe lane, the aluminum nitride layer is covered with a coating film for protection against humidity and moisture.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: March 5, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hideki Mizuhara, Yoshihiro Matsushima, Shinichi Oohashi
  • Publication number: 20180083100
    Abstract: In a semiconductor element having a compound semiconductor layer epitaxially grown on a silicon substrate, an object is to suppress generation of deficiency or problems of reliability deriving from the ends of the element that are generated when dividing into semiconductor devices by dicing. A compound semiconductor layer epitaxially grown on a silicon substrate is formed via a buffer layer made of aluminum nitride. In the periphery of the semiconductor device, a scribe lane is present to surround a semiconductor element region. Along the scribe lane, the aluminum nitride layer is covered with a coating film for protection against humidity and moisture.
    Type: Application
    Filed: November 27, 2017
    Publication date: March 22, 2018
    Inventors: Hideki MIZUHARA, Yoshihiro MATSUSHIMA, Shinichi OOHASHI
  • Patent number: 9865679
    Abstract: In a semiconductor element having a compound semiconductor layer epitaxially grown on a silicon substrate, an object is to suppress generation of deficiency or problems of reliability deriving from the ends of the element that are generated when dividing into semiconductor devices by dicing. A compound semiconductor layer epitaxially grown on a silicon substrate is formed via a buffer layer made of aluminum nitride. In the periphery of the semiconductor device, a scribe lane is present to surround a semiconductor element region. Along the scribe lane, the aluminum nitride layer is covered with a coating film for protection against humidity and moisture.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: January 9, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hideki Mizuhara, Yoshihiro Matsushima, Shinichi Oohashi
  • Publication number: 20160035828
    Abstract: In a semiconductor element having a compound semiconductor layer epitaxially grown on a silicon substrate, an object is to suppress generation of deficiency or problems of reliability deriving from the ends of the element that are generated when dividing into semiconductor devices by dicing. A compound semiconductor layer epitaxially grown on a silicon substrate is formed via a buffer layer made of aluminum nitride. In the periphery of the semiconductor device, a scribe lane is present to surround a semiconductor element region. Along the scribe lane, the aluminum nitride layer is covered with a coating film for protection against humidity and moisture.
    Type: Application
    Filed: October 12, 2015
    Publication date: February 4, 2016
    Inventors: HIDEKI MIZUHARA, YOSHIHIRO MATSUSHIMA, SHINICHI OOHASHI