Patents by Inventor Chaohua Cheng

Chaohua Cheng 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: 20240143651
    Abstract: The present disclosure relates to the field of image definition recognition, and discloses a logging image definition recognition method and device, medium and electronic equipment. The method comprises: establishing a logging image sample library comprising a plurality of logging images; acquiring actual definition information corresponding to the respective logging images; acquiring a plurality of definitions corresponding to the respective logging images; determining target weights corresponding to the respective target image definition determination algorithms according to the plurality of definitions and the actual definition information corresponding to the respective logging images; and determining a definition of a target logging image by the respective target image definition determination algorithms and the target weights corresponding to the respective target image definition determination algorithms.
    Type: Application
    Filed: October 19, 2021
    Publication date: May 2, 2024
    Applicant: China Oilfield Services Ltd.
    Inventors: Lin Huang, Shusheng Guo, Zhenxue Hou, Chuan Fan, Danian Xu, Da Sheng, Wei Long, Guohua Zhang, Jiajie Cheng, Dong Li, Zhang Zhang, Lu Yin, Chaohua Zhang, Guibin Zhang
  • Patent number: 7701031
    Abstract: An integrated circuit structure is described, and includes a substrate, a contact window, and a Schottky contact metal layer. A heavily doped region and a lightly doped region are formed in the substrate. The contact window is disposed above the heavily doped region, and the Schottky contact metal layer is disposed above the lightly doped region. The Schottky contact metal layer and the substrate form a Schottky diode. The material of the contact window is different from that of the Schottky contact metal layer.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: April 20, 2010
    Assignee: United Microelectronics Corp.
    Inventor: Chaohua Cheng
  • Patent number: 7638403
    Abstract: An integrated circuit structure is described, and includes a substrate, a contact window, and a Schottky contact metal layer. A heavily doped region and a lightly doped region are formed in the substrate. The contact window is disposed above the heavily doped region, and the Schottky contact metal layer is disposed above the lightly doped region. The Schottky contact metal layer and the substrate form a Schottky diode. The material of the contact window is different from that of the Schottky contact metal layer.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: December 29, 2009
    Assignee: United Microelectronics Corp.
    Inventor: Chaohua Cheng
  • Publication number: 20070275547
    Abstract: An integrated circuit structure is described, and includes a substrate, a contact window, and a Schottky contact metal layer. A heavily doped region and a lightly doped region are formed in the substrate. The contact window is disposed above the heavily doped region, and the Schottky contact metal layer is disposed above the lightly doped region. The Schottky contact metal layer and the substrate form a Schottky diode. The material of the contact window is different from that of the Schottky contact metal layer.
    Type: Application
    Filed: August 10, 2007
    Publication date: November 29, 2007
    Inventor: CHAOHUA CHENG
  • Publication number: 20070252228
    Abstract: An integrated circuit structure is described, and includes a substrate, a contact window, and a Schottky contact metal layer. A heavily doped region and a lightly doped region are formed in the substrate. The contact window is disposed above the heavily doped region, and the Schottky contact metal layer is disposed above the lightly doped region. The Schottky contact metal layer and the substrate form a Schottky diode. The material of the contact window is different from that of the Schottky contact metal layer.
    Type: Application
    Filed: April 7, 2006
    Publication date: November 1, 2007
    Inventor: Chaohua Cheng