Patents by Inventor Ralph Williamson

Ralph Williamson 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).

  • Clamp based ESD protection circuits
    Patent number: 9728532
    Abstract: An electro-static discharge (ESD) protection circuit utilizes a gate-drain breakdown characteristic of high electron mobility transistors (HEMTs) in a dual stacked configuration to provide a discharge path for electro-static discharges, while having a minimal effect on the associated circuit which is being protected.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: August 8, 2017
    Assignee: Qorvo US, Inc.
    Inventors: Swaminathan Muthukrishnan, Nathaniel Peachey, Cody Hale, Ralph Williamson
  • CLAMP BASED ESD PROTECTION CIRCUITS
    Publication number: 20120262828
    Abstract: An electro-static discharge (ESD) protection circuit utilizes a gate-drain breakdown characteristic of high electron mobility transistors (HEMTs) in a dual stacked configuration to provide a discharge path for electro-static discharges, while having a minimal effect on the associated circuit which is being protected.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 18, 2012
    Applicant: RF MICRO DEVICES, INC.
    Inventors: Swaminathan Muthukrishnan, Nathaniel Peachey, Cody Hale, Ralph Williamson