Patents by Inventor Jianjian SHENG

Jianjian SHENG 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: 20230352476
    Abstract: A nitride-based semiconductor device includes a first nitride-based semiconductor layer, a second nitride-based semiconductor layer, a source electrode and a drain electrode, a gate structure, a first field plate, and a second field plate. The second nitride-based semiconductor layer is disposed on the first nitride-based semiconductor layer. The source electrode and the drain electrode are disposed above the second nitride-based semiconductor layer. The gate structure is disposed above the second nitride-based semiconductor layer. The first field plate is disposed over the gate structure and is electrically coupled with the source electrode and the drain electrode. The second field plate is disposed over the gate structure and is electrically coupled with the gate structure. The first field plate and the second field plate are parallel with each other. A top surface of the first field plate faces a bottom surface of the second field plate to overlap with each other.
    Type: Application
    Filed: October 27, 2021
    Publication date: November 2, 2023
    Inventors: Xin ZHANG, Jianjian SHENG, Junyuan LV, Zhenzhe LI
  • Patent number: 11764210
    Abstract: The present disclosure provides an electrostatic protection circuit and an electronic device. The electrostatic protection circuit is connected to a first end point and a second end point of a power device. The electrostatic protection circuit is configured to allow bilateral electrostatic protection between the first end point and the second end point of the power device. The power device includes a transverse high-electron-mobility transistor (HEMT).
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: September 19, 2023
    Assignee: INNOSCIENCE (ZHUHAI) TECHNOLOGY CO., LTD.
    Inventors: Yaobin Guan, Jianjian Sheng
  • Patent number: 11721969
    Abstract: An electronic device includes a first group III nitride transistor and an over current protection circuit (OCP). The OCP circuit includes an input device and a detection device. The input device is configured to receive a control signal and to generate a first voltage to a gate of the first group III nitride transistor. The detection device is configured to generate an output signal having a first logical value if a current at a drain of the first group III nitride transistor is less than a predetermined value and to generate the output signal having a second logical value if the current at the drain of the first group III nitride transistor is equal to or greater than the predetermined value, wherein the first logical value is different from the second logical value.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: August 8, 2023
    Assignee: INNOSCIENCE (ZHUHAI) TECHNOLOGY CO., LTD.
    Inventors: Jianjian Sheng, Yaobin Guan
  • Patent number: 11715946
    Abstract: An electronic device includes a first group III nitride transistor and an electrostatic discharge (ESD) protection circuit. an electronic device may include a first group III nitride transistor and an ESD protection circuit. The ESD protection circuit may include a first transistor, a second transistor, and a third transistor. The first transistor may have a source and a gate connected to each other and electrically connected to a gate of the first group III nitride transistor. The second transistor may have a source and a gate connected to each other and electrically connected to a source of the first group III nitride transistor. The third transistor may have a drain electrically connected to the gate of the first group III nitride transistor, a gate electrically connected to a drain of the first transistor and to a drain of the second transistor, and a source electrically connected to the source of the first group III nitride transistor.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: August 1, 2023
    Assignee: INNOSCIENCE (SUZHOU) SEMICONDUCTOR CO., LTD.
    Inventors: Yaobin Guan, Jianjian Sheng, Zhenzhe Li, Junyuan Lv
  • Publication number: 20230178541
    Abstract: A semiconductor device and a clamping circuit including a substrate; a first semiconductor layer, arranged on the substrate and composed of a III-nitride semiconductor material; a second semiconductor layer, arranged on the first semiconductor layer and composed of a III-nitride semiconductor material; a power transistor structure, including a gate structure, a drain structure and a source structure arranged on the second semiconductor layer; the first transistor structures, arranged on the second semiconductor layer; and the second transistor structures, arranged on the second semiconductor layer in series. One end of the first transistor structures and one end of the second transistor structures are jointly electrically connected to the drain structure of the power transistor structure, and the other end of the first transistor structures and the other end of the second transistor structures are jointly electrically connected to the source structure of the power transistor structure.
    Type: Application
    Filed: February 1, 2023
    Publication date: June 8, 2023
    Inventors: Yaobin GUAN, Jianjian SHENG
  • Patent number: 11600610
    Abstract: The present invention relates to a semiconductor device and a clamping circuit including a substrate; a first semiconductor layer, arranged on the substrate and composed of a III-nitride semiconductor material; a second semiconductor layer, arranged on the first semiconductor layer and composed of a III-nitride semiconductor material; a power transistor structure, including a gate structure, a drain structure and a source structure arranged on the second semiconductor layer; the first transistor structures, arranged on the second semiconductor layer; and the second transistor structures, arranged on the second semiconductor layer in series.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: March 7, 2023
    Assignee: INNOSCIENCE (ZHUHAI) TECHNOLOGY CO., LTD.
    Inventors: Yaobin Guan, 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
  • 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: 20220376494
    Abstract: An electronic device includes a first group III nitride transistor and an electrostatic discharge (ESD) protection circuit. an electronic device may include a first group III nitride transistor and an ESD protection circuit. The ESD protection circuit may include a first transistor, a second transistor, and a third transistor. The first transistor may have a source and a gate connected to each other and electrically connected to a gate of the first group III nitride transistor. The second transistor may have a source and a gate connected to each other and electrically connected to a source of the first group III nitride transistor. The third transistor may have a drain electrically connected to the gate of the first group III nitride transistor, a gate electrically connected to a drain of the first transistor and to a drain of the second transistor, and a source electrically connected to the source of the first group III nitride transistor.
    Type: Application
    Filed: November 30, 2020
    Publication date: November 24, 2022
    Inventors: YAOBIN GUAN, JIANJIAN SHENG, ZHENZHE LI, JUNYUAN LV
  • Publication number: 20220376490
    Abstract: An electronic device includes a first group III nitride transistor and an over current protection circuit (OCP). The OCP circuit includes an input device and a detection device. The input device is configured to receive a control signal and to generate a first voltage to a gate of the first group III nitride transistor. The detection device is configured to generate an output signal having a first logical value if a current at a drain of the first group III nitride transistor is less than a predetermined value and to generate the output signal having a second logical value if the current at the drain of the first group III nitride transistor is equal to or greater than the predetermined value, wherein the first logical value is different from the second logical value.
    Type: Application
    Filed: May 20, 2020
    Publication date: November 24, 2022
    Inventors: JIANJIAN SHENG, YAOBIN GUAN
  • 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: 20220320077
    Abstract: The present disclosure provides an electrostatic protection circuit and an electronic device. The electrostatic protection circuit is connected to a first end point and a second end point of a power device. The electrostatic protection circuit is configured to allow bilateral electrostatic protection between the first end point and the second end point of the power device. The power device includes a transverse high-electron-mobility transistor (HEMT).
    Type: Application
    Filed: June 21, 2022
    Publication date: October 6, 2022
    Inventors: Yaobin GUAN, Jianjian SHENG
  • Patent number: 11398470
    Abstract: The present disclosure provides an electrostatic protection circuit and an electronic device. The electrostatic protection circuit is connected to a first end point and a second end point of a power device. The electrostatic protection circuit is configured to allow bilateral electrostatic protection between the first end point and the second end point of the power device. The power device includes a transverse high-electron-mobility transistor (HEMT).
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: July 26, 2022
    Assignee: INNOSCIENCE (ZHUHAI) TECHNOLOGY CO., LTD.
    Inventors: Yaobin Guan, Jianjian Sheng
  • Publication number: 20210210481
    Abstract: The present invention relates to a semiconductor device and a clamping circuit including a substrate; a first semiconductor layer, arranged on the substrate and composed of a III-nitride semiconductor material; a second semiconductor layer, arranged on the first semiconductor layer and composed of a III-nitride semiconductor material; a power transistor structure, including a gate structure, a drain structure and a source structure arranged on the second semiconductor layer; the first transistor structures, arranged on the second semiconductor layer; and the second transistor structures, arranged on the second semiconductor layer in series.
    Type: Application
    Filed: April 28, 2020
    Publication date: July 8, 2021
    Inventors: Yaobin GUAN, Jianjian SHENG
  • Publication number: 20200365581
    Abstract: The present disclosure provides an electrostatic protection circuit and an electronic device. The electrostatic protection circuit is connected to a first end point and a second end point of a power device. The electrostatic protection circuit is configured to allow bilateral electrostatic protection between the first end point and the second end point of the power device. The power device includes a transverse high-electron-mobility transistor (HEMT).
    Type: Application
    Filed: April 8, 2020
    Publication date: November 19, 2020
    Inventors: Yaobin GUAN, Jianjian SHENG