Patents by Inventor Michael Frederick Ehman

Michael Frederick Ehman 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: 6249039
    Abstract: An inductive component includes a substrate on the surface of which is a lower insulation layer having a shallow concavity or trench, a first plurality of conductive elements formed in the trench, a magnetic core formed over the first plurality of conductive elements, and a second plurality of conductive elements formed over the core. The first and second pluralities of conductive elements are connected to each other so as to form an inductive coil around the core. First and second core insulation layers are disposed between the core and the first and second pluralities of conductive elements, respectively. The component is fabricated by a method in which it is built up in the trench using thin film techniques. A first array of conductors is patterned over the lower insulation layer, and a first core insulation layer is applied over the first conductor array. A magnetic core is formed on top of the first core insulation layer, and a second core insulation layer is applied over the core.
    Type: Grant
    Filed: September 10, 1998
    Date of Patent: June 19, 2001
    Assignee: Bourns, Inc.
    Inventors: Ian Robert Harvey, Michael Frederick Ehman, Malcolm Randall Harvey, James Craig Stephenson