Patents by Inventor Prognyan Ghosh

Prognyan Ghosh 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: 20110223729
    Abstract: A method of fabricating a semiconductor integrated circuit including a power diode includes providing a semiconductor substrate of first conductivity type, fabricating a integrated circuit such as a CMOS transistor circuit in a first region of the substrate, and fabricating a power diode in a second region in the semiconductor substrate. Dielectric material is formed between the first region and the second regions thereby providing electrical isolation between the integrated circuit in the first region and the power diode in the second region. The power diode can comprise a plurality of MOS source/drain elements and associated gate elements all connected together by one electrode of the diode, and a semiconductor layer in the second region can function as another source/drain of the power diode.
    Type: Application
    Filed: May 16, 2011
    Publication date: September 15, 2011
    Applicant: DIODES, INCORPORATED
    Inventors: Paul Chang, Geeng-Chuan Chern, Prognyan Ghosh, Wayne Y.W. Hsueh, Vladmir Rodov
  • Patent number: 7964933
    Abstract: A method of fabricating a semiconductor integrated circuit including a power diode includes providing a semiconductor substrate of first conductivity type, fabricating a integrated circuit such as a CMOS transistor circuit in a first region of the substrate, and fabricating a power diode in a second region in the semiconductor substrate. Dielectric material is formed between the first region and the second regions thereby providing electrical isolation between the integrated circuit in the first region and the power diode in the second region. The power diode can comprise a plurality of MOS source/drain elements and associated gate elements all connected together by one electrode of the diode, and a semiconductor layer in the second region can function as another source/drain of the power diode.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: June 21, 2011
    Assignee: Diodes Inc.
    Inventors: Paul Chang, Geeng-Chuan Chern, Prognyan Ghosh, Wayne Y. W. Hsueh, Vladimir Rodov
  • Publication number: 20070246794
    Abstract: A method of fabricating a semiconductor integrated circuit including a power diode includes providing a semiconductor substrate of first conductivity type, fabricating a integrated circuit such as a CMOS transistor circuit in a first region of the substrate, and fabricating a power diode in a second region in the semiconductor substrate. Dielectric material is formed between the first region and the second regions thereby providing electrical isolation between the integrated circuit in the first region and the power diode in the second region. The power diode can comprise a plurality of MOS source/drain elements and associated gate elements all connected together by one electrode of the diode, and a semiconductor layer in the second region can function as another source/drain of the power diode.
    Type: Application
    Filed: June 22, 2007
    Publication date: October 25, 2007
    Inventors: Paul Chang, Geeng-Chuan Chern, Prognyan Ghosh, Wayne Hsueh, Vladimir Rodov
  • Patent number: 7250668
    Abstract: A method of fabricating a semiconductor integrated circuit including a power diode includes providing a semiconductor substrate of first conductivity type, fabricating a integrated circuit such as a CMOS transistor circuit in a first region of the substrate, and fabricating a power diode in a second region in the semiconductor substrate. Dielectric material is formed between the first region and the second regions thereby providing electrical isolation between the integrated circuit in the first region and the power diode in the second region. The power diode can comprise a plurality of MOS source/drain elements and associated gate elements all connected together by one electrode of the diode, and a semiconductor layer in the second region can function as another source/drain of the power diode.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: July 31, 2007
    Assignee: Diodes, Inc.
    Inventors: Paul Chang, Geeng-Chuan Chern, Prognyan Ghosh, Wayne Y. W. Hsueh, Vladimir Rodov
  • Publication number: 20060157815
    Abstract: A method of fabricating a semiconductor integrated circuit including a power diode includes providing a semiconductor substrate of first conductivity type, fabricating a integrated circuit such as a CMOS transistor circuit in a first region of the substrate, and fabricating a power diode in a second region in the semiconductor substrate. Dielectric material is formed between the first region and the second regions thereby providing electrical isolation between the integrated circuit in the first region and the power diode in the second region. The power diode can comprise a plurality of MOS source/drain elements and associated gate elements all connected together by one electrode of the diode, and a semiconductor layer in the second region can function as another source/drain of the power diode.
    Type: Application
    Filed: January 20, 2005
    Publication date: July 20, 2006
    Applicant: APD Semiconductor, Inc.
    Inventors: Paul Chang, Geeng-Chuan Chern, Prognyan Ghosh, Wayne Hsueh, Vladimir Rodov