Patents by Inventor Kevin B. Hilgers

Kevin B. Hilgers 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: 5930589
    Abstract: A method for fabricating an integrated field emission device (90) includes the steps of: (1) providing a substrate (52), (2) forming a conductive layer (54) on the substrate (52), (3) depositing a dielectric layer (56) on the conductive layer (54), (4) forming an emission well (62) in the dielectric layer (56), (5) forming an emissive film (72) over the dielectric layer (56) so that the emissive film (72) extends partially into the emission well (62) to define an emissive edge (94) within the emission well (62), and (6) selectively etching the dielectric layer (56) proximate to the emissive edge (94) so that electrons emitted by the emissive edge (94) are received by the conductive layer (54).
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: July 27, 1999
    Assignee: Motorola, Inc.
    Inventors: Kevin B. Hilgers, Bruce G. Smith
  • Patent number: 5468169
    Abstract: A method of forming an electron emitter for an FED by means of successive evaporative material depositions, providing a flexibility of electron emitter formation which removes geometry constraints that limited the form of prior art field emission device electron emitters. The resultant field emission device yields improved performance as a result of increased insulator layer thickness and electron emitter aspect ratio.
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: November 21, 1995
    Assignee: Motorola
    Inventors: Robert C. Kane, Kevin B. Hilgers
  • Patent number: 5384509
    Abstract: A method of producing an FED including a central conductive region having a surface perpendicular to the supporting structure forming a device anode, a structure including first and second layers of intrinsic semiconductor material with a conductive layer, forming an emitter, sandwiched therebetween and stacked to each provide a surface parallel to and spaced from the conductive region surface, and conductive layers disposed on the provided surfaces of the first and second layers, perpendicular to the sandwiched conductive layer, in spaced relation to each other and the sandwiched conductive layer to form gate extraction electrodes.
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: January 24, 1995
    Assignee: Motorola, Inc.
    Inventors: Robert C. Kane, Kevin B. Hilgers
  • Patent number: 5319192
    Abstract: An optical signal detector insensitive to variations in optical signal intensity and operably discriminable with respect to signal wavelength is provided. An incident optical signal comprised of wavelength dependent information is detected to provide electronic current information substantially insensitive to variations in incoming optical signal intensity.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: June 7, 1994
    Assignee: Motorola, Inc.
    Inventors: Robert C. Kane, Kevin B. Hilgers