Patents by Inventor John E. Ewen

John E. Ewen 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).

  • High-Q inductors in silicon technology without expensive metalization
    Patent number: 5446311
    Abstract: A monolithic high-Q inductor structure is formed with multiple metalization levels in a conventional integrated circuit technology in which inductor turns utilize these multiple levels to reduce the inductor resistance. Inductors with Q values above five can be integrated with this approach at radio and microwave frequencies.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: August 29, 1995
    Assignee: International Business Machines Corporation
    Inventors: John E. Ewen, Saila Ponnapalli, Mehmet Soyuer