Patents by Inventor Tzu-Ming Lu

Tzu-Ming Lu 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).

  • Micromagnet PUF readout using a quantum diamond microscope
    Patent number: 11796612
    Abstract: A physically unclonable function (PUF) and a method of reading it are provided. The PUF is constituted by a microfabricated array of randomly polarized micromagnets disposed on a substrate. The PUF can be read by creating a magnetization map of the PUF from the signal output of a quantum diamond microscope (QDM) and converting the magnetization map to a numerical sequence.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: October 24, 2023
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Pauli Mark Kehayias, Ezra Bussmann, Tzu-Ming Lu, Andrew Mounce
  • 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
  • Nanoscale bolometer operating near the thermodynamic limit
    Patent number: 11788893
    Abstract: A nanoscale bolometer for infrared (IR) thermal imaging comprises a subwavelength antenna that provides a specific detectivity approaching a fundamental, thermodynamic limit. The uncooled nanobolometer achieves performance comparable to cooled, high-performance, semiconductor photodetectors, but with significantly reduced size, weight, power, and cost.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: October 17, 2023
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Charles Thomas Harris, Tzu-Ming Lu, Ting S. Luk, Peter Anand Sharma