Patents by Inventor Sara K Casper

Sara K Casper 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: 9426873
    Abstract: The embodiments of the invention include a method for controlling plasma conditions of a glow discharge system using the integrated electron (or ion) pulse area extracted from the total lamp current. The method of using an integrated electron/ion pulse area for controlling plasma conditions allows for controlled analysis of conductive, non-conductive and layered materials without the need for estimation of plasma voltages. The method allows for control of sputter rates and plasma emissions that cannot be achieved using other methods such as capacitive divider calculations where actual thicknesses and dielectric constants are not known or predefined.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: August 23, 2016
    Assignee: Leco Corporation
    Inventors: Ted J Casper, Sara K Casper, Kim Marshall
  • Publication number: 20140062306
    Abstract: The embodiments of the invention include a method for controlling plasma conditions of a glow discharge system using the integrated electron (or ion) pulse area extracted from the total lamp current. The method of using an integrated electron/ion pulse area for controlling plasma conditions allows for controlled analysis of conductive, non-conductive and layered materials without the need for estimation of plasma voltages. The method allows for control of sputter rates and plasma emissions that cannot be achieved using other methods such as capacitive divider calculations where actual thicknesses and dielectric constants are not known or predefined.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 6, 2014
    Applicant: Leco Corporation
    Inventors: Ted J Casper, Sara K Casper, Kim A Marshall