Patents by Inventor Zhiyun Luo

Zhiyun Luo 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: 20240001247
    Abstract: This application provides a game login method. The game login method includes receiving a login request sent by a client computing device, where the login request carries a login account; determining at least two groups of corresponding network addresses based on the login account; determining whether the client computing device belongs to a lock region based on lock region configuration corresponding to the login request and the at least two groups of network addresses; and in response to determining that the client computing device does not belong to the lock region, performing login based on the login request.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 4, 2024
    Inventor: Zhiyun LUO
  • Patent number: 11101346
    Abstract: This invention discloses a semiconductor power device formed on a semiconductor substrate comprises an active cell area and a termination area disposed near edges of the semiconductor substrate. The termination area comprises a plurality of duplicated units wherein each unit includes at least two trenches filled with a conductive trench material having a mesa area between adjacent trenches wherein the trenches and the mesa areas within each of the duplicated units are electrically shunt together. In the termination area each of the trenches in the duplicated units has a buried guard ring dopant region disposed below a bottom surface of the trenches.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: August 24, 2021
    Assignee: HUNTECH SEMICONDUCTOR (SHANGHAI) CO. LTD
    Inventors: Jun Hu, Zhiyun Luo, Fei Wang
  • Patent number: 10923588
    Abstract: A semiconductor power device includes a plurality of power transistor cells each having a trenched gate disposed in a gate trench opened in a semiconductor substrate wherein a plurality of the trenched gates further include a shielded bottom electrode disposed in a bottom portion of the gate trench electrically insulated from a top gate electrode disposed at a top portion of the gate trench by an inter-electrode insulation layer. At least one of the shielded bottom electrode is connected a source metal and at least one of the top electrodes in the gate trench is connected to a source metal of the power device.
    Type: Grant
    Filed: July 29, 2018
    Date of Patent: February 16, 2021
    Assignee: HUNTECK SEMICONDUCTOR (SHANGHAI) CO. LTD
    Inventors: Jun Hu, Zhiyun Luo, Fei Wang, Mengyu Pan
  • Patent number: 10453953
    Abstract: First polysilicon (poly-1) is deposited into deep trenches that have been formed in a substrate. A first polysilicon polishing process is performed to planarize the exposed surfaces of the poly-1 so that the surfaces are flush with adjacent surfaces. Then, shallow trenches are formed in the substrate between the deep trenches, and second polysilicon (poly-2) is deposited into the shallow trenches. A second polysilicon polishing process is performed to planarize the exposed surface of the poly-2 so that the surface is flush with adjacent surfaces. Metal contacts to the poly-1 and the poly-2 are then formed.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: October 22, 2019
    Assignee: VISHAY-SILICONIX
    Inventors: Kyle Terrill, Yuming Bai, Deva Pattanayak, Zhiyun Luo
  • Publication number: 20190206986
    Abstract: This invention discloses a semiconductor power device formed on a semiconductor substrate comprises an active cell area and a termination area disposed near edges of the semiconductor substrate. The termination area comprises a plurality of duplicated units wherein each unit includes at least two trenches filled with a conductive trench material having a mesa area between adjacent trenches wherein the trenches and the mesa areas within each of the duplicated units are electrically shunt together. In the termination area each of the trenches in the duplicated units has a buried guard ring dopant region disposed below a bottom surface of the trenches.
    Type: Application
    Filed: March 21, 2016
    Publication date: July 4, 2019
    Inventors: Jun Hu, Zhiyun Luo, Fei Wang
  • Publication number: 20190027596
    Abstract: A semiconductor power device includes a plurality of power transistor cells each having a trenched gate disposed in a gate trench opened in a semiconductor substrate wherein a plurality of the trenched gates further include a shielded bottom electrode disposed in a bottom portion of the gate trench electrically insulated from a top gate electrode disposed at a top portion of the gate trench by an inter-electrode insulation layer. At least one of the shielded bottom electrode is connected a source metal and at least one of the top electrodes in the gate trench is connected to a source metal of the power device.
    Type: Application
    Filed: July 29, 2018
    Publication date: January 24, 2019
    Inventors: Jun HU, Zhiyun LUO, Fei Wang, Mengyu Pan
  • Patent number: 10038089
    Abstract: A semiconductor power device includes a plurality of power transistor cells each having a trenched gate disposed in a gate trench opened in a semiconductor substrate wherein a plurality of the trenched gates further include a shielded bottom electrode disposed in a bottom portion of the gate trench electrically insulated from a top gate electrode disposed at a top portion of the gate trench by an inter-electrode insulation layer. At least one of the shielded bottom electrode is connected a source metal and at least one of the top electrodes in the gate trench is connected to a source metal of the power device.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: July 31, 2018
    Assignee: HUNTECK SEMICONDUCTOR (SHANGHAI) CO., Ltd
    Inventors: Jun Hu, Zhiyun Luo, Fei Wang, Mengyu Pan
  • Publication number: 20170162689
    Abstract: A semiconductor power device includes a plurality of power transistor cells each having a trenched gate disposed in a gate trench opened in a semiconductor substrate wherein a plurality of the trenched gates further include a shielded bottom electrode disposed in a bottom portion of the gate trench electrically insulated from a top gate electrode disposed at a top portion of the gate trench by an inter-electrode insulation layer. At least one of the shielded bottom electrode is connected a source metal and at least one of the top electrodes in the gate trench is connected to a source metal of the power device.
    Type: Application
    Filed: December 2, 2015
    Publication date: June 8, 2017
    Inventors: Jun Hu, Zhiyun LUO, Fei WANG, Mengyu PAN
  • Publication number: 20170104096
    Abstract: First polysilicon (poly-1) is deposited into deep trenches that have been formed in a substrate. A first polysilicon polishing process is performed to planarize the exposed surfaces of the poly-1 so that the surfaces are flush with adjacent surfaces. Then, shallow trenches are formed in the substrate between the deep trenches, and second polysilicon (poly-2) is deposited into the shallow trenches. A second polysilicon polishing process is performed to planarize the exposed surface of the poly-2 so that the surface is flush with adjacent surfaces. Metal contacts to the poly-1 and the poly-2 are then formed.
    Type: Application
    Filed: December 21, 2016
    Publication date: April 13, 2017
    Inventors: Kyle Terrill, Yuming Bai, Deva Pattanayak, Zhiyun Luo
  • Patent number: 9577089
    Abstract: First polysilicon (poly-1) is deposited into deep trenches that have been formed in a substrate. A first polysilicon polishing process is performed to planarize the exposed surfaces of the poly-1 so that the surfaces are flush with adjacent surfaces. Then, shallow trenches are formed in the substrate between the deep trenches, and second polysilicon (poly-2) is deposited into the shallow trenches. A second polysilicon polishing process is performed to planarize the exposed surface of the poly-2 so that the surface is flush with adjacent surfaces. Metal contacts to the poly-1 and the poly-2 are then formed.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: February 21, 2017
    Assignee: Vishay-Siliconix
    Inventors: Kyle Terrill, Deva Pattanayak, Zhiyun Luo
  • Publication number: 20110254084
    Abstract: First polysilicon (poly-1) is deposited into deep trenches that have been formed in a substrate. A first polysilicon polishing process is performed to planarize the exposed surfaces of the poly-1 so that the surfaces are flush with adjacent surfaces. Then, shallow trenches are formed in the substrate between the deep trenches, and second polysilicon (poly-2) is deposited into the shallow trenches. A second polysilicon polishing process is performed to planarize the exposed surface of the poly-2 so that the surface is flush with adjacent surfaces. Metal contacts to the poly-1 and the poly-2 are then formed.
    Type: Application
    Filed: March 2, 2011
    Publication date: October 20, 2011
    Applicant: VISHAY-SILICONIX
    Inventors: Kyle Terrill, Yuming Bai, Deva Pattanayak, Zhiyun Luo