Patents by Inventor Sumiko Poust

Sumiko Poust 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).

  • Method of forming a gate contact
    Patent number: 9048184
    Abstract: A method is provided for forming a gate contact for a compound semiconductor device. The gate contact is formed from a gate contact portion and a top or wing contact portion. The method allows for the tunablity of the size of the wing contact portion, while retaining the size of the gate contact portion based on a desired operational frequency. This is accomplished by providing for one or more additional conductive material processes on the wing contact portion to increase the cross-sectional area of the wing contact portion reducing the gate resistance, while maintaing the length of the gate contact portion to maintain the operating frequency of the device.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 2, 2015
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Carol O. Namba, Po-Hsin Liu, Sumiko Poust, Ioulia Smorchkova, Michael Wojtowicz, Ronald Grundbacher