Patents by Inventor K. O. Kenneth

K. O. Kenneth 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).

  • Merged bipolar and insulated gate transistors
    Patent number: 5028977
    Abstract: A vertical bipolar transistor is formed along with an IGFET transistor in a process in which the bipolar transistor collector, base and emitter structure is formed in the body of a semiconductor mesa-like structure while the IGFET transistor is formed in and along one of the sidewalls of the structure. Source and drain regions are formed in the structure by ion-implantation using a polysilicon gate electrode formed over a gate insulator on the sidewall as a self-aligning mask.
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: July 2, 1991
    Assignee: Massachusetts Institute of Technology
    Inventors: K. O. Kenneth, Hae-Seung Lee, L. Rafael Reif