Patents by Inventor Koenraad F. Schuylenbergh

Koenraad F. Schuylenbergh 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).

  • Photolithographically-patterned variable capacitor structures and method of making
    Publication number: 20020080554
    Abstract: A new type of high-Q variable capacitor includes a substrate, a first electrically conductive layer fixed to the substrate, a dielectric layer fixed to a portion of the electrically conductive layer, and a second electrically conductive layer having an anchor portion and a free portion. The anchor portion is fixed to the dielectric layer and the free portion is initially fixed to the dielectric layer, but is released from the dielectric layer to become separated from the dielectric layer, and wherein an inherent stress profile in the second electrically conductive layer biases the free portion away from the a dielectric layer. When a bias voltage is applied between the first electrically conductive layer and the second electrically conductive layer, electrostatic forces in the free portion bend the free portion towards the first electrically conductive layer, thereby increasing the capacitance of the capacitor.
    Type: Application
    Filed: October 11, 2001
    Publication date: June 27, 2002
    Applicant: Xerox Corporation.
    Inventors: Christopher L. Chua, Eric Peeters, Koenraad F. Schuylenbergh, Donald L. Smith