Patents by Inventor Vojtech Mahel

Vojtech Mahel 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).

  • Publication number: 20260133148
    Abstract: A device, apparatus, and method for simultaneous imaging in charged particle microscopy. The method also includes directing, by a charged particle beam source, a charged particle beam towards a target, where interactions of the charged particle beam with the target generate charged particle emissions and electromagnetic emissions. The method also includes receiving, by a membrane detector, the charged particle emissions and the electromagnetic emissions, where the membrane detector at least partially absorbs a portion of the charged particle emissions and is at least partially transparent to the electromagnetic emissions. The method also includes outputting, by the membrane detector, charged particle signal data based at least in part on the portion of the charged particle emissions received by the membrane detector.
    Type: Application
    Filed: November 11, 2024
    Publication date: May 14, 2026
    Inventors: Vojtech Mahel, Branislav Straka, Libor Novák, Petr Hlavenka
  • Publication number: 20260066209
    Abstract: Systems, components, and methods are described for protecting a charged particle detector against damage. A filter can include a frame and a membrane of carbon material. The membrane can define a first surface, a second surface opposing the first surface, and an aperture extending through the membrane from the first surface to the second surface. The frame can be configured to couple with a charged particle detector disposed in a charged particle beam column, the charged particle detector defining an absorption surface oriented toward the first surface. The filter can be configured to shield the absorption surface from particles incident on the second surface. The particles can include electrons, ions, or photons.
    Type: Application
    Filed: August 29, 2024
    Publication date: March 5, 2026
    Inventors: Vojtech Mahel, Petr Hlavenka, Branislav Straka, Robert Macku
  • Publication number: 20250279259
    Abstract: Systems, devices, and techniques for heating a sample are described. A heating assembly can include a membrane. The membrane can include carbon nanotube material. The heating assembly includes a support, mechanically coupled with the membrane. The support can be configured to integrate with a charged particle beam system. The heating assembly also includes a heating circuit, electrically coupled with the membrane. The heating circuit can be configured to direct an electrical current through the membrane.
    Type: Application
    Filed: March 4, 2024
    Publication date: September 4, 2025
    Inventors: Vojtech Mahel, Libor Novák, Branislav Straka, Kristýna Bukvišová
  • Publication number: 20250102451
    Abstract: Dual beam charged particle microscopy systems, sensors, and techniques are disclosed. A charged particle microscope system can include a vacuum chamber, a sample stage disposed in the vacuum chamber, a first beam source operable to direct a first particle beam into the vacuum chamber, a second beam source operable to direct a second particle beam into the vacuum chamber, a first charged particle sensor, and a second charged particle sensor. The first charged particle sensor can include a detector cell having a semiconductor layer characterized by a bandgap equal to or greater than about 2.0 eV, oriented to detect secondary electrons generated based on an interaction between the first particle beam or the second particle beam and the sample. The second charged particle sensor can include a scintillator detector configured to be saturated from electrons generated based on an interaction between the second particle beam and the sample.
    Type: Application
    Filed: September 27, 2023
    Publication date: March 27, 2025
    Inventors: Vojtech MAHEL, Branislav STRAKA, Libor NOVÁK, Jeremy GRAHAM
  • Publication number: 20250069844
    Abstract: Systems, components, and methods for detecting characteristic signals are described. A detector includes a detector cell. The detector cell can be configured to generate an electrical signal in response to a particle incident on an active layer of the detector cell, The active layer can define an absorption surface. The detector can include a filter. The filter can include a membrane of carbon material. The filter can be disposed relative to the detector cell to shield the absorption surface from a subset of the incident particles. The subset of the incident particles can include electrons, ions, and photons. The photons can have an energy less than about 40 eV.
    Type: Application
    Filed: August 25, 2023
    Publication date: February 27, 2025
    Inventors: Petr Hlavenka, Eva Štastná, Vojtech Mahel, Jakub Klus, Branislav Straka