Patents by Inventor Susan E. Jacobson

Susan E. Jacobson 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: 4968382
    Abstract: In the production of micron-size pyramid emitters for field emission devices, very sharp emitter points are achieved by providing a layer of suitable metal, metal compound or semiconductor, forming masking pads over the required emitter positions, etching the layer so that column-like structures are formed beneath the pads, removing the pads, and then subjecting the columns to dry etching, such as plasma etching, reactive ion etching, ion beam milling or reactive ion beam milling. The dry etching process shapes the columns into pyramids with a tip size of the order of 0.03 microns.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: November 6, 1990
    Assignee: The General Electric Company, p.l.c.
    Inventors: Susan E. Jacobson, Rosemary A. Lee, Helen A. Williams