Patents by Inventor Danfeng MAO

Danfeng MAO 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: 20240096878
    Abstract: The semiconductor device includes a substrate, a first nitride semiconductor layer disposed on the substrate, a second nitride semiconductor layer disposed on the first nitride semiconductor layer and having a bandgap greater than that of the first nitride semiconductor layer. The semiconductor device further includes a first gate conductor disposed on a first region of the second nitride semiconductor layer, a first source electrode disposed on a first side of the first gate conductor, a first field plate disposed on a second side of the first gate conductor, a first conductive terminal and a second conductive terminal disposed on a second region of the second nitride semiconductor layer, and a resistor formed in the first nitride semiconductor layer and electrically connected between the first conductive terminal and the second conductive terminal, wherein the resistor comprises at least one conductive region.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 21, 2024
    Applicant: INNOSCIENCE (SUZHOU) TECHNOLOGY CO., LTD.
    Inventors: Danfeng MAO, King Yuen WONG, Jinhan ZHANG, Xiaoyan ZHANG, Wei WANG, Jianjian SHENG
  • Patent number: 11869887
    Abstract: The present disclosure relates to a semiconductor device and a fabrication method thereof. The semiconductor device includes a substrate, a first nitride semiconductor layer disposed on the substrate, a second nitride semiconductor layer disposed on the first nitride semiconductor layer and having a bandgap greater than that of the first nitride semiconductor layer. The semiconductor device further includes a first gate conductor disposed on a first region of the second nitride semiconductor layer, a first source electrode disposed on a first side of the first gate conductor, a first field plate disposed on a second side of the first gate conductor; and a capacitor having a first conductive layer and a second conductive layer and disposed on a second region of the second nitride semiconductor layer. Wherein the first conductive layer of the capacitor and the first source electrode have a first material, and the second conductive layer of the capacitor and the first field plate have a second material.
    Type: Grant
    Filed: December 25, 2020
    Date of Patent: January 9, 2024
    Inventors: Danfeng Mao, King Yuen Wong, Jinhan Zhang, Xiaoyan Zhang, Wei Wang, Jianjian Sheng
  • Publication number: 20220375927
    Abstract: The present disclosure relates to a semiconductor device and a fabrication method thereof. The semiconductor device includes a substrate, a nitride semiconductor layer disposed on the substrate, a first gate stack in contact with the nitride semiconductor layer, and a resistor laterally spaced apart from the first gate stack and electrically connected to first gate stack. The resistor comprises a first conductive terminal in contact with the nitride semiconductor layer, a second conductive terminal in contact with the nitride semiconductor layer; a first doped region of the nitride semiconductor layer between the first conductive terminal and the second conductive terminal; and a first conductive region of the nitride semiconductor layer in contact with the first conductive terminal and the second conductive terminal.
    Type: Application
    Filed: December 25, 2020
    Publication date: November 24, 2022
    Inventors: Danfeng MAO, King Yuen WONG, Jinhan ZHANG, Xiaoyan ZHANG, Wei WANG, Jianjian SHENG
  • Publication number: 20220375925
    Abstract: The present disclosure relates to a semiconductor device and a fabrication method thereof. The semiconductor device includes a substrate, a first nitride semiconductor layer disposed on the substrate, a second nitride semiconductor layer disposed on the first nitride semiconductor layer and having a bandgap greater than that of the first nitride semiconductor layer. The semiconductor device further includes a first gate conductor disposed on a first region of the second nitride semiconductor layer, a passivation layer covering the first gate conductor, and a second gate conductor disposed on the passivation layer and on a second region of the second nitride semiconductor layer, wherein the first region is laterally spaced apart from the second region.
    Type: Application
    Filed: December 25, 2020
    Publication date: November 24, 2022
    Inventors: Danfeng MAO, King Yuen WONG, Jinhan ZHANG, Xiaoyan ZHANG, Wei WANG, Jianjian SHENG
  • Publication number: 20220375928
    Abstract: The present disclosure relates to a semiconductor device and a fabrication method thereof. The semiconductor device includes a substrate, a first nitride semiconductor layer disposed on the substrate, a second nitride semiconductor layer disposed on the first nitride semiconductor layer and having a bandgap greater than that of the first nitride semiconductor layer. The semiconductor device further includes a first gate conductor disposed on a first region of the second nitride semiconductor layer, a first source electrode disposed on a first side of the first gate conductor, a first field plate disposed on a second side of the first gate conductor; and a capacitor having a first conductive layer and a second conductive layer and disposed on a second region of the second nitride semiconductor layer. Wherein the first conductive layer of the capacitor and the first source electrode have a first material, and the second conductive layer of the capacitor and the first field plate have a second material.
    Type: Application
    Filed: December 25, 2020
    Publication date: November 24, 2022
    Inventors: Danfeng MAO, King Yuen WONG, Jinhan ZHANG, Xiaoyan ZHANG, Wei WANG, Jianjian SHENG