Patents by Inventor Haksong Park

Haksong Park 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).

  • Bidirectional input-output cell
    Patent number: 4937471
    Abstract: A bidirectional input-output cell characterized in a logic means has MOS transistors of which semiconductor region approaches through whole side of outer drain region in the opposite position of channel and is the opposite type conductivity of said drain region conductivity. The bidirectional input-output cell can prevent the breakdown of semiconductor device come out the surge current of electrostatic discharge voltage in said semiconductor region.
    Type: Grant
    Filed: November 29, 1988
    Date of Patent: June 26, 1990
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Haksong Park, Kwanyong Sung, Heonjoon Kim, Chaimin Lee