Patents by Inventor Cathy C. Lee

Cathy C. Lee 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).

  • Gallium nitride on high thermal conductivity material device and method
    Patent number: 9337278
    Abstract: Embodiments include but are not limited to semiconductor devices including a barrier layer, a gallium nitride channel layer having a Ga-face coupled with the barrier layer, and a thermoconductive layer having a thermal conductivity of at least 500 W/(m·K) within 1000 nanometers of a Ga-face of the gallium nitride channel layer. The semiconductor device may be a high-electron-mobility transistor or a semiconductor wafer. Methods for making the same also are described.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: May 10, 2016
    Assignee: TriQuint Semiconductor, Inc.
    Inventors: Xing Gu, Jinqiao Xie, Edward A. Beam, III, Deep C. Dumka, Cathy C. Lee