Patents by Inventor Mark Narcy

Mark Narcy 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: 6607991
    Abstract: An electron beam exposure method is described which provides a means of curing spin-on-glass or spin-on-polymer dielectric material formed on a semiconductor wafer. The dielectric material insulates the conductive metal layer and planarizes the topography in the process of manufacturing multilayered integrated circuits. The method utilizes a large area, uniform electron beam exposure system in a soft vacuum environment. A wafer coated with uncured dielectric material is irradiated with electrons of sufficient energy to penetrate the entire thickness of the dielectric material and is simultaneously heated by infrared heaters. By adjusting the process conditions, such as electron beam total dose and energy, temperature of the wafer, and ambient atmosphere, the properties of the cured dielectric material can be modified.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: August 19, 2003
    Assignee: Electron Vision Corporation
    Inventors: William R. Livesay, Matthew F. Ross, Anthony L. Rubiales, Heike Thompson, Selmer Wong, Trey Marlowe, Mark Narcy