Patents by Inventor Jacques Nonhebel

Jacques Nonhebel 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).

  • Beam blanker for interrupting a beam of charged particles
    Patent number: 8569712
    Abstract: The invention relates to an electrostatic beam blanker for a particle-optical apparatus, in which the blanker is used to generate a train of pulses with a fixed repetition rate. Such pulse trains with a sub-picosecond pulse length are for example used in the study of chemistry in the femtosecond scale. The beam blanker according to the invention uses a resonant structure, as a result of which the voltage is amplified by the quality factor Q of the resonant structure. During each zero-crossing of the signal, thus twice per period of the resonant frequency, the beam is transmitted, and the beam is blanked during the rest of the time. In a preferred embodiment the resonant structure comprises a transmission line. Impedance matching of signal source and resonant structure may be performed by tuning stubs.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: October 29, 2013
    Assignee: FEI Company
    Inventors: Guido Martinus Henricus Knippels, Fredericus Bernardus Kiewiet, Hendrik Nicolaas Slingerland, Pieter Kruit, Benjamin John Cook, Jacques Nonhebel
  • Beam Blanker for Interrupting a Beam of Charged Particles
    Publication number: 20120261586
    Abstract: The invention relates to an electrostatic beam blanker for a particle-optical apparatus, in which the blanker is used to generate a train of pulses with a fixed repetition rate. Such pulse trains with a sub-picosecond pulse length are for example used in the study of chemistry in the femtosecond scale. The beam blanker according to the invention uses a resonant structure, as a result of which the voltage is amplified by the quality factor Q of the resonant structure. During each zero-crossing of the signal, thus twice per period of the resonant frequency, the beam is transmitted, and the beam is blanked during the rest of the time. In a preferred embodiment the resonant structure comprises a transmission line. Impedance matching of signal source and resonant structure may be performed by tuning stubs.
    Type: Application
    Filed: October 7, 2011
    Publication date: October 18, 2012
    Applicant: FEI COMPANY
    Inventors: Guido Martinus Henricus Knippels, Fredericus Bernardus Kiewiet, Hendrik Nicolaas Slingerland, Pieter Kruit, Benjamin John Cook, Jacques Nonhebel