Patents by Inventor DeAnna Marie Campbell

DeAnna Marie Campbell 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).

  • Method of chemical doping that uses CMOS-compatible processes
    Patent number: 11798808
    Abstract: A method of Atomic Precision Advanced Manufacturing (APAM) is provided, in which a substrate is doped from a dopant precursor gas. The method involves covering a surface of the substrate with a hard mask, selectively removing material from the hard mask such that selected areas of the substrate surface are laid bare, exposing the laid-bare areas to the dopant precursor gas, and heating the substrate so as to incorporate dopant from the dopant precursor gas into the substrate surface.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: October 24, 2023
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Shashank Misra, Daniel Robert Ward, DeAnna Marie Campbell, Tzu-Ming Lu, Scott William Schmucker, Evan Michael Anderson, Andrew Jay Leenheer, Jeffrey Andrew Ivie
  • Active shunt capacitance cancelling oscillator for resonators
    Patent number: 11171604
    Abstract: The present invention relates to an active shunt capacitance cancelling oscillator circuit. Such systems can be used in resonator-based methods, while avoiding impedance distortion and phase shift anomalies.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: November 9, 2021
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Darren W. Branch, Kurt Wessendorf, Bryan Carson, DeAnna Marie Campbell