Patents by Inventor Annamarie Lightfoot

Annamarie Lightfoot 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: 5834840
    Abstract: An electronic device package is provided, consisting of reaction bonded silicon nitride structural and dielectric components and conductor, resistor, and capacitor elements positioned with the package structural components. The package consists of a ceramic package base characterized by a dielectric constant less than 6, of reaction bonded silicon nitride, or a heat spreader material. An electrical conductor is positioned on, embedded in, or attached to the package base for making electrical contact to an electronic device supported on the base and in preferred embodiments, a resistor is attached to the package base. The invention also provides package sidewalls connected to the package base, preferably of reaction bonded silicon nitride, and at least one electrical conductor extending to an outside surface of the package sidewalls for making electrical contact to an electronic device supported by the package base.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: November 10, 1998
    Assignees: Massachusetts Institute of Technology, Charles Stark Draper Laboratory, Inc.
    Inventors: William L. Robbins, John S. Haggerty, Dennis D. Rathman, William D. Goodhue, George B. Kenney, Annamarie Lightfoot, R. Allen Murphy, Wendell E. Rhine, Julia Sigalovsky
  • Patent number: 5801073
    Abstract: A method of producing electronic device packages is provided, consisting of the steps of shaping a package preform and heating the package preform in a nitrogen-containing atmoshpere to nitride the package preform. The shaped package preform may consist of package base, sidewall, conductor, resistor, or capacitor components. The package base and sidewall components may be formed of silicon powder. The method also accommodates the step of inserting a semiconducting material into the package preform and heating the semiconducting material component along with the package preform. The inserted semiconducting material component may be processed to define active electronic device areas on the component either before or after the step of heating the shaped package preform and inserted semiconducting material component.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: September 1, 1998
    Assignees: Charles Stark Draper Laboratory, Massachusetts Institute of Technology
    Inventors: William L. Robbins, John S. Haggerty, Dennis D. Rathman, William D. Goodhue, George B. Kenney, Annamarie Lightfoot, R. Allen Murphy, Wendell E. Rhine, Julia Sigalovsky