Patents by Inventor Walter van Dijk

Walter van Dijk 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: 10340113
    Abstract: A method of using a Charged Particle Microscope, comprising: A specimen holder, for holding a specimen; A source, for producing an irradiating beam of charged particles; An illuminator, for directing said beam so as to irradiate the specimen; A detector, for detecting a flux of emergent radiation emanating from the specimen in response to said irradiation, additionally comprising the following steps: In said illuminator, providing an aperture plate comprising an array of apertures; Using a deflecting device to scan said beam across said array, thereby alternatingly interrupting and transmitting the beam so as to produce a train of beam pulses; Irradiating said specimen with said train of pulses, and using said detector to perform positionally resolved (temporally discriminated) detection of the attendant emergent radiation.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: July 2, 2019
    Assignee: FEI Company
    Inventors: Erik René Kieft, Walter van Dijk
  • Publication number: 20170243713
    Abstract: A method of using a Charged Particle Microscope, comprising: A specimen holder, for holding a specimen; A source, for producing an irradiating beam of charged particles; An illuminator, for directing said beam so as to irradiate the specimen; A detector, for detecting a flux of emergent radiation emanating from the specimen in response to said irradiation, additionally comprising the following steps: In said illuminator, providing an aperture plate comprising an array of apertures; Using a deflecting device to scan said beam across said array, thereby alternatingly interrupting and transmitting the beam so as to produce a train of beam pulses; Irradiating said specimen with said train of pulses, and using said detector to perform positionally resolved (temporally discriminated) detection of the attendant emergent radiation.
    Type: Application
    Filed: December 22, 2016
    Publication date: August 24, 2017
    Applicant: FEI Company
    Inventors: Erik René Kieft, Walter van Dijk