Patents by Inventor Adam Christopher Lassise

Adam Christopher Lassise 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 pulsing device for use in charged-particle microscopy
    Patent number: 9048060
    Abstract: The invention relates to a charged-particle microscope comprising a charged-particle source; a sample holder; a charged-particle lens system; a detector; and a beam pulsing device, for causing the beam to repeatedly switch on and off so as to produce a pulsed beam. The beam pulsing device comprises a unitary resonant cavity disposed about a particle-optical axis and has an entrance aperture and an exit aperture for the beam. The resonant cavity is configured to simultaneously produce a first oscillatory deflection of the beam at a first frequency in a first direction and a second oscillatory deflection of the beam at a second, different frequency in a second, different direction. The resonant cavity may have an elongated (e.g. rectangular or elliptical) cross-section, with a long axis parallel to said first direction and a short axis parallel to said second direction.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: June 2, 2015
    Assignee: FEI COMPANY
    Inventors: Erik René Kieft, Fredericus Bernardus Kiewiet, Adam Christopher Lassise, Otger Jan Luiten, Petrus Henricus Antonius Mutsaers, Edgar Jan Dirk Vredenbregt, Alexander Henstra
  • BEAM PULSING DEVICE FOR USE IN CHARGED-PARTICLE MICROSCOPY
    Publication number: 20140103225
    Abstract: The invention relates to a charged-particle microscope comprising a charged-particle source; a sample holder; a charged-particle lens system; a detector; and a beam pulsing device, for causing the beam to repeatedly switch on and off so as to produce a pulsed beam. The beam pulsing device comprises a unitary resonant cavity disposed about a particle-optical axis and has an entrance aperture and an exit aperture for the beam. The resonant cavity is configured to simultaneously produce a first oscillatory deflection of the beam at a first frequency in a first direction and a second oscillatory deflection of the beam at a second, different frequency in a second, different direction. The resonant cavity may have an elongated (e.g. rectangular or elliptical) cross-section, with a long axis parallel to said first direction and a short axis parallel to said second direction.
    Type: Application
    Filed: October 17, 2013
    Publication date: April 17, 2014
    Applicant: FEI Company
    Inventors: Erik René Kieft, Fredericus Bernardus Kiewiet, Adam Christopher Lassise, Otger Jan Luiten, Petrus Henricus Antonius Mutsaers, Edgar Jan Dirk Vredenbregt, Alexander Henstra