Patents by Inventor Feihang LIU

Feihang LIU 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: 10847627
    Abstract: A semiconductor device comprises: a substrate; a semiconductor layer formed on the substrate; a source electrode, a drain electrode and a gate electrode between the source electrode and the drain electrode formed on the semiconductor layer; and a source field plate formed on the semiconductor layer. The source field plate sequentially comprises: a start portion electrically connected to the source electrode; a first intermediate portion spaced apart from the semiconductor layer with air therebetween; a second intermediate portion disposed between the gate electrode and the drain electrode in a horizontal direction, without air between the second intermediate portion and the semiconductor layer; and an end portion spaced apart from the semiconductor layer with air therebetween.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: November 24, 2020
    Assignee: DYNAX SEMICONDUCTOR, INC.
    Inventors: Naiqian Zhang, Feihang Liu, Xin Jin, Yi Pei, Xi Song
  • Patent number: 10845406
    Abstract: The present disclosure provides a semiconductor device and a method of manufacturing the same, and relates to the field of semiconductor devices. The semiconductor device includes an active region, a test region and a passive region located outside the active region and the test region, wherein a standard device is formed in the active region, and a test device for testing performance parameters of the standard device is formed in the test region.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: November 24, 2020
    Assignee: DYNAX SEMICONDUCTOR, INC.
    Inventors: Naiqian Zhang, Jian Liu, Feihang Liu, Yi Pei
  • Patent number: 10749005
    Abstract: The present disclosure provides a semiconductor device and a method for manufacturing the same. A semiconductor device according to a performing mode includes a substrate, a semiconductor layer located on one side of the substrate, a source and a drain located on one side of the semiconductor layer away from the substrate, and a gate located between the source and the drain, and an isolation structure disposed on one side of the semiconductor layer away from the substrate, one end of the isolation structure being disposed at a side close to the source, and the other end being disposed at a side close to the drain and in direct contact with the surface layer of the semiconductor device, the isolation structure covering the gate or a part of the gate, the isolation structure being an integrally formed structure and forming a chamber with the semiconductor layer.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: August 18, 2020
    Assignee: DYNAX SEMICONDUCTOR, INC.
    Inventors: Yi Pei, Feihang Liu
  • Patent number: 10439029
    Abstract: A field plate power device comprises: a substrate; a multilayer semiconductor layer disposed on the substrate; a source electrode, a drain electrode, and a gate electrode located between the source electrode and the drain electrode disposed on the multilayer semiconductor layer; a dielectric layer disposed on the gate electrode, a part of the multilayer semiconductor layer between the gate electrode and the source electrode and another part of the multilayer semiconductor layer between the gate electrode and the drain electrode; a groove disposed in a part of the dielectric layer between the gate electrode and the drain electrode; and a field plate disposed on the groove. The field plate comprises a first portion away from the gate electrode in a horizontal direction, and the first portion has an overall upward tilted shape in the horizontal direction away from the gate electrode.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: October 8, 2019
    Assignee: GPOWER SEMICONDUCTOR, INC.
    Inventors: Yuan Li, Yi Pei, Feihang Liu
  • Publication number: 20190271737
    Abstract: The present disclosure provides a semiconductor device and a method of manufacturing the same, and relates to the field of semiconductor devices. The semiconductor device includes an active region, a test region and a passive region located outside the active region and the test region, wherein a standard device is formed in the active region, and a test device for testing performance parameters of the standard device is formed in the test region.
    Type: Application
    Filed: May 17, 2019
    Publication date: September 5, 2019
    Inventors: Naiqian ZHANG, Jian LIU, Feihang LIU, Yi PEI
  • Patent number: 10361271
    Abstract: A semiconductor device comprises an active region and a passive region located outside the active region. The active region comprises a plurality of active region units. At least one pair of adjacent active region units do not completely overlap in a length direction of the semiconductor device.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: July 23, 2019
    Assignee: GPOWER SEMICONDUCTOR, INC.
    Inventors: Naiqian Zhang, Feihang Liu, Yi Pei
  • Publication number: 20180337239
    Abstract: A field plate power device comprises: a substrate; a multilayer semiconductor layer disposed on the substrate; a source electrode, a drain electrode, and a gate electrode located between the source electrode and the drain electrode disposed on the multilayer semiconductor layer; a dielectric layer disposed on the gate electrode, a part of the multilayer semiconductor layer between the gate electrode and the source electrode and another part of the multilayer semiconductor layer between the gate electrode and the drain electrode; a groove disposed in a part of the dielectric layer between the gate electrode and the drain electrode; and a field plate disposed on the groove. The field plate comprises a first portion away from the gate electrode in a horizontal direction, and the first portion has an overall upward tilted shape in the horizontal direction away from the gate electrode.
    Type: Application
    Filed: August 1, 2018
    Publication date: November 22, 2018
    Inventors: Yuan LI, Yi PEI, Feihang LIU
  • Patent number: 10068974
    Abstract: A field plate power device comprises: a substrate; a multilayer semiconductor layer disposed on the substrate; a source electrode, a drain electrode, and a gate electrode located between the source electrode and the drain electrode disposed on the multilayer semiconductor layer; a dielectric layer disposed on the gate electrode, a part of the multilayer semiconductor layer between the gate electrode and the source electrode and another part of the multilayer semiconductor layer between the gate electrode and the drain electrode; a groove disposed in a part of the dielectric layer between the gate electrode and the drain electrode; and a field plate disposed on the groove. The field plate comprises a first portion away from the gate electrode in a horizontal direction, the first portion has an overall upward tilted shape in the horizontal direction away from the gate electrode.
    Type: Grant
    Filed: February 25, 2017
    Date of Patent: September 4, 2018
    Assignee: GPOWER SEMICONDUCTOR, INC.
    Inventors: Yuan Li, Yi Pei, Feihang Liu
  • Publication number: 20170170284
    Abstract: A field plate power device comprises: a substrate; a multilayer semiconductor layer disposed on the substrate; a source electrode, a drain electrode, and a gate electrode located between the source electrode and the drain electrode disposed on the multilayer semiconductor layer; a dielectric layer disposed on the gate electrode, a part of the multilayer semiconductor layer between the gate electrode and the source electrode and another part of the multilayer semiconductor layer between the gate electrode and the drain electrode; a groove disposed in a part of the dielectric layer between the gate electrode and the drain electrode; and a field plate disposed on the groove. The field plate comprises a first portion away from the gate electrode in a horizontal direction, the first portion has an overall upward tilted shape in the horizontal direction away from the gate electrode.
    Type: Application
    Filed: February 25, 2017
    Publication date: June 15, 2017
    Inventors: Yuan LI, Yi PEI, Feihang LIU
  • Publication number: 20170104063
    Abstract: A semiconductor device comprises an active region and a passive region located outside the active region. The active region comprises a plurality of active region units. At least one pair of adjacent active region units do not completely overlap in a length direction of the semiconductor device.
    Type: Application
    Filed: December 22, 2016
    Publication date: April 13, 2017
    Inventors: Naiqian ZHANG, Feihang LIU, Yi PEI
  • Publication number: 20160380062
    Abstract: A semiconductor device comprises: a substrate; a semiconductor layer formed on the substrate; a source electrode, a drain electrode and a gate electrode between the source electrode and the drain electrode formed on the semiconductor layer; and a source field plate formed on the semiconductor layer. The source field plate sequentially comprises: a start portion electrically connected to the source electrode; a first intermediate portion spaced apart from the semiconductor layer with air therebetween; a second intermediate portion disposed between the gate electrode and the drain electrode in a horizontal direction, without air between the second intermediate portion and the semiconductor layer; and an end portion spaced apart from the semiconductor layer with air therebetween.
    Type: Application
    Filed: February 17, 2016
    Publication date: December 29, 2016
    Inventors: Naiqian ZHANG, Feihang LIU, Xin JIN, Yi PEI, Xi SONG