Patents by Inventor Derek H. Craston

Derek H. Craston 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).

  • Patent number: 4968390
    Abstract: Embodiments of the present invention provide a new method for producing microfine conducting features by utilizing a scanning electrochemical microscope (SECM) (a modified version of the scanning tunneling microscope) to electrochemically deposit various conducting substances on the surfaces of conductive objects. The method comprises the steps of coating or forming a polymeric or ionically conducting film layer over a conductive object upon which the conducting features are to be deposited, placing the tip of an SECM in contact with the conducting film, applying a voltage between the SECM tip and the object so that a current passes through the film from the SECM tip to the object to induce an electrochemical reaction that will cause the desired product to be deposited, and moving the tip across the surface of the film to leave a pattern of microfine deposit features. At the same time, the counter-reaction at the conductive object yields to a localized etching of the lattice with a high resolution.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: November 6, 1990
    Assignee: Board of Regents, The University of Texas System
    Inventors: Allen J. Bard, Oskar E. Huesser, Derek H. Craston