Patents by Inventor Katerina Ioakeimidi

Katerina Ioakeimidi 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).

  • RUTHENIUM ENCAPSULATED PHOTOCATHODE ELECTRON EMITTER
    Publication number: 20190108966
    Abstract: A photocathode structure, which can include an alkali halide, has a protective film on an exterior surface of the photocathode structure. The protective film includes ruthenium. This protective film can be, for example, ruthenium or an alloy of ruthenium and platinum. The protective film can have a thickness from 1 nm to 20 nm. The photocathode structure can be used in an electron beam tool like a scanning electron microscope.
    Type: Application
    Filed: October 3, 2018
    Publication date: April 11, 2019
    Inventors: Gildardo R. Delgado, Rudy F. Garcia, Katerina Ioakeimidi, Frances Hill, Michael E. Romero
  • ELECTRON BEAM GENERATION AND MEASUREMENT
    Publication number: 20190108967
    Abstract: A flat top laser beam is used to generate an electron beam with a photocathode that can include an alkali halide. The flat top profile can be generated using an optical array. The laser beam can be split into multiple laser beams or beamlets, each of which can have the flat top profile. A phosphor screen can be imaged to determine space charge effects or electron energy of the electron beam.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 11, 2019
    Inventors: Katerina Ioakeimidi, Gildardo R. Delgado, Frances Hill, Michael E. Romero, Rudy F. Garcia