Patents by Inventor Philbert Marsh

Philbert Marsh 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).

  • Pseudomorphic high electron mobility transistor comprising doped low temperature buffer layer
    Patent number: 8853743
    Abstract: A pseudomorphic high electron mobility transistor (PHEMT) comprises a substrate comprising a Group III-V semiconductor material, a buffer layer disposed over the substrate, wherein the buffer layer comprises microprecipitates of a Group V semiconductor element and is doped with an N-type dopant, and a channel layer disposed over the buffer layer.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: October 7, 2014
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Jonathan Abrokwah, Nathan Perkins, John Stanback, Philbert Marsh, Hans G. Rohdin
  • PSEUDOMORPHIC HIGH ELECTRON MOBILITY TRANSISTOR COMPRISING DOPED LOW TEMPERATURE BUFFER LAYER
    Publication number: 20140138746
    Abstract: A pseudomorphic high electron mobility transistor (PHEMT) comprises a substrate comprising a Group III-V semiconductor material, a buffer layer disposed over the substrate, wherein the buffer layer comprises microprecipitates of a Group V semiconductor element and is doped with an N-type dopant, and a channel layer disposed over the buffer layer.
    Type: Application
    Filed: November 16, 2012
    Publication date: May 22, 2014
    Inventors: Jonathan Abrokwah, Nathan Perkins, John Stanback, Philbert Marsh, Hans G. Rohdin