Patents by Inventor Thomas Goddenhenrich

Thomas Goddenhenrich 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 and apparatus for forming a micromelt structure on an electrically-conductive probe tip
    Patent number: 5178742
    Abstract: A micromelt structure is provided on a probe tip by contacting the probe tip with a foil of the material from which the micromelt structure is to be formed and passing an electric current through the contact point to melt the foil and cause the molten foil material to collect on the tip of the probe where, by surface tension, it is drawn into a microsphere shape and homogeneously solidifies. The probe with the micromelt tip is highly reproducible and uniform and is particularly effective for use as a probe in scanning microscopy.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: January 12, 1993
    Assignee: Forschungszentrum Julich GmbH
    Inventors: Heiko Lemke, Thomas Goddenhenrich, Hans-Peter Bochem, Uwe Hartmann
  • Method of and apparatus for producing electrically-conductive probe tips
    Patent number: 5145564
    Abstract: Probe tips are produced from electrically conductive wire by electrolytic machining of a zone of the wire above a free end utilizing a liquid electrolyte layer in contact with this zone, a ring electrode surrounding this zone, and a layer of an insulating fluid into which the free end extends. The insulating fluid can be air where the electrolyte is a membrane between layers of air above and below the membrane, or a body of a liquid insulator below the electrolyte layer where the insulator and the electrolyte form a bath.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: September 8, 1992
    Assignee: Forschungszentrum Julich GmbH
    Inventors: Heiko Lemke, Thomas Goddenhenrich, Hans-Peter Bochem, Uwe Hartmann