Patents by Inventor Walter Eidelloth

Walter Eidelloth 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).

  • Selective insulation etching for fabricating superconductor microcircuits
    Patent number: 5646095
    Abstract: A method for selectively etching insulative material composed of SrTiO3 or MgO in the presence of a copper oxide perovskite superconductive material includes treating the insulative material with a liquid selective etchant solution containing hydrogen fluoride in water for a period of time, the insulative material being etched at a substantially faster rate than the superconductive material etch rate, then treating the superconductive material exposed to the insulative selective with another etchant to remove a surface layer.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: July 8, 1997
    Assignee: International Business Machines Corporation
    Inventors: Walter Eidelloth, William Joseph Gallagher