Patents by Inventor Yow-Juang B. Liu

Yow-Juang B. 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).

  • Electrostatic discharge protection device for CMOS integrated circuit outputs
    Patent number: 4734752
    Abstract: An integrated circuit device for protecting the circuitry of an integrated circuit from an electrostatic discharge into an output pin of the chip is disclosed. In a preferred embodiment, the device comprises an n-well, n-channel, polysilicon-gated FET structure, which operates in a punch-through mode, coupled to an output pad and an output buffer of the circuit. Back biasing in the chip system affords additional inhibition to turn-on during normal system operation.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: March 29, 1988
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Yow-Juang B. Liu, Salvatore Cagnina