Patents by Inventor Philip Lindorpher

Philip Lindorpher 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).

  • Patent number: 7298599
    Abstract: A snapback ESD protection network coupled across first and second integrated circuit pads and including first and second snapback devices, such as SCR devices, with the second device having a turnoff current ITOFF which is greater than the turnoff current of the first device. Each of the snapback devices has an anode terminal and a cathode terminal, with the first device anode and cathode terminals being coupled to the respective first and second integrated circuit pads through a first effective series resistance and the second device being coupled to the respective first and second integrated circuit pads through a second effective series resistance, with the first effective series resistance being smaller than the second so as to cause the first and second snapback devices to tend to turn on at about the same time at the beginning of an ESD event. The differences in turnoff current cause the second snapback device to turn off prior to the first snapback device at the conclusion of an ESD event.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: November 20, 2007
    Assignee: National Semiconductor Corporation
    Inventors: Vladislav Vashchenko, Peter J. Hopper, Yuri Mirgorodski, Philip Lindorpher