Patents by Inventor JunKui Hu

JunKui Hu 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: 20240022252
    Abstract: A method of manufacturing an IC structure includes forming first through fourth PMOS transistors in an n-well, constructing a bias circuit including the first and second PMOS transistors, constructing a level shifter including the third and fourth PMOS transistors, building a first power distribution structure including electrical connections to each of the first and third PMOS transistors, and building a second power distribution structure including electrical connections to each of the second and fourth PMOS transistors.
    Type: Application
    Filed: August 9, 2023
    Publication date: January 18, 2024
    Inventors: Yaqi MA, Lei PAN, JunKui HU
  • Patent number: 11831310
    Abstract: An integrated circuit (IC) includes a first power supply node configured to have a first power supply voltage level, a second power supply node configured to have a second power supply voltage level separate from the first power supply voltage level, an n-well, a bias circuit, and a level shifter. The n-well contains first and second PMOS transistors including first source/drain (S/D) terminals coupled to the first power supply node, and third and fourth PMOS transistors including second S/D terminals coupled to the second power supply node. The bias circuit includes the first PMOS transistor including a third S/D terminal coupled to the n-well and a gate coupled to the second power supply node, and the third PMOS transistor including a fourth S/D terminal coupled to the n-well and a gate coupled to the first power supply node. The level shifter includes the second and fourth PMOS transistors.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: November 28, 2023
    Assignees: TSMC CHINA COMPANY, LIMITED, TAIWAN SEMICONDUCTOR MANUFACTURING LTD.
    Inventors: Yaqi Ma, Lei Pan, JunKui Hu
  • Publication number: 20230016895
    Abstract: An integrated circuit (IC) includes a first power supply node configured to have a first power supply voltage level, a second power supply node configured to have a second power supply voltage level separate from the first power supply voltage level, an n-well, a bias circuit, and a level shifter. The n-well contains first and second PMOS transistors including first source/drain (S/D) terminals coupled to the first power supply node, and third and fourth PMOS transistors including second S/D terminals coupled to the second power supply node. The bias circuit includes the first PMOS transistor including a third S/D terminal coupled to the n-well and a gate coupled to the second power supply node, and the third PMOS transistor including a fourth S/D terminal coupled to the n-well and a gate coupled to the first power supply node. The level shifter includes the second and fourth PMOS transistors.
    Type: Application
    Filed: August 8, 2022
    Publication date: January 19, 2023
    Inventors: Yaqi MA, Lei PAN, JunKui HU
  • Patent number: 11431339
    Abstract: A circuit includes a bias circuit and a level shifter. The bias circuit includes first and second input terminals configured to receive first and second power supply voltages, and is configured to generate a bias voltage having the greater of a first voltage level of the first power supply voltage or a second voltage level of the second power supply voltage. The level shifter includes a first PMOS transistor configured to receive the first power supply voltage and a second PMOS transistor configured to receive the second power supply voltage, and each of the first and second PMOS transistors includes a bulk terminal configured to receive the bias voltage.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: August 30, 2022
    Assignees: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., TSMC CHINA COMPANY, LIMITED
    Inventors: Yaqi Ma, Lei Pan, JunKui Hu
  • Patent number: 6439904
    Abstract: An electrical card connector (1) includes an insulating housing (10) receiving a plurality of contacts (20) therein, and an ejector device attached to the insulating housing. The ejector device includes a driving member (30), an operating bar (40) connecting with the driving member at an end thereof and movable along a same direction as the extending direction of the contacts, and a retaining member (50) assembled to the housing. The operating bar defines an engaging portion for engaging with the retaining member.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: August 27, 2002
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: JunKui Hu, ZiQiang Zhu, Guohua Zhang