Patents by Inventor SHANYUE MO

SHANYUE MO 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).

  • High-voltage-tolerant pull-up resistor circuit
    Patent number: 9634662
    Abstract: A pull-up resistor circuit is provided for an IC, including a voltage source, a voltage output for providing a first voltage to supply power for providing a second voltage for an input/output (I/O) port of the IC, a first PMOS transistor, a second PMOS transistor and a control signal generator. The first PMOS transistor and the second PMOS transistor are connected in series to provide pull-up resistance, where the first PMOS transistor is coupled to a first control signal to control a pull-up function of the pull-up resistor circuit in a normal mode. Further, the control signal generator is for generating a second control signal coupled to the second PMOS transistor to control a bias voltage of the pull-up resistor circuit to prevent a reverse current from the voltage output to the voltage source under a high-voltage-tolerant mode when the second voltage is higher than the first voltage.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: April 25, 2017
    Assignee: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (SHANGHAI) CORPORATION
    Inventors: Kai Zhu, Jie Chen, Wenjun Weng, Shanyue Mo, Zhiguang Guo
  • High-Voltage-Tolerant Pull-Up Resistor Circuit
    Publication number: 20150137881
    Abstract: A pull-up resistor circuit is provided for an IC, including a voltage source, a voltage output for providing a first voltage to supply power for providing a second voltage for an input/output (I/O) port of the IC, a first PMOS transistor, a second PMOS transistor and a control signal generator. The first PMOS transistor and the second PMOS transistor are connected in series to provide pull-up resistance, where the first PMOS transistor is coupled to a first control signal to control a pull-up function of the pull-up resistor circuit in a normal mode. Further, the control signal generator is for generating a second control signal coupled to the second PMOS transistor to control a bias voltage of the pull-up resistor circuit to prevent a reverse current from the voltage output to the voltage source under a high-voltage-tolerant mode when the second voltage is higher than the first voltage.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 21, 2015
    Inventors: KAI ZHU, JIE CHEN, WENJUN WENG, SHANYUE MO, ZHIGUANG GUO