Patents by Inventor Michael Steigerwald

Michael Steigerwald 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: 12283453
    Abstract: An electron-beam device includes a laser and a photocathode film. The photocathode film has a front side and a back side and emits a plurality of electron beamlets when illuminated from the back side using the laser. The electron-beam device also includes electrodes to extract the plurality of electron beamlets from the front side of the photocathode film and to control shapes of the plurality of electron beamlets.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: April 22, 2025
    Assignee: KLA Corporation
    Inventors: Xinrong Jiang, Youfei Jiang, Michael Steigerwald, Ralph Nyffenegger
  • Patent number: 12165831
    Abstract: A multi-electron beam system that forms hundreds of beamlets can focus the beamlets, reduce Coulomb interaction effects, and improve resolutions of the beamlets. A Wien filter with electrostatic and magnetic deflection fields can separate the secondary electron beams from the primary electron beams and can correct the astigmatism and source energy dispersion blurs for all the beamlets simultaneously.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: December 10, 2024
    Assignee: KLA CORPORATION
    Inventors: Xinrong Jiang, Christopher Sears, Youfei Jiang, Sameet K. Shriyan, Jeong Ho Lee, Michael Steigerwald, Ralph Nyffenegger
  • Patent number: 12104114
    Abstract: Ionic superatomic materials that can be solution-processed into completely amorphous and homogeneous thin films are disclosed herein. The amorphous materials disclosed herein have tunable compositions and have electrical conductivities of up to 300 siemens per meter, thermal conductivities of 0.05 watt per meter per degree Kelvin, and optical transparencies of up to 92%. Application of these thin-films are also provided herein.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: October 1, 2024
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Colin Nuckolls, Jingjing Yang, Alexander D. Christodoulides, Boyuan Zhang, Qizhi Xu, Amirali Zangiabadi, Christine McGinn, Samuel Peurifoy, Lingyun Dai, Elena Meirzadeh, Michael Steigerwald, Xavier Roy, Ioannis Kymissis, Jonathan A. Malen
  • Patent number: 12068129
    Abstract: A system and method of a tilt-column electron beam imaging system is disclosed. The system may include an imaging sub-system. The imaging sub-system may include a plurality of electron beam sources configured to generate a plurality of beamlets. The imaging sub-system may further include a plurality of tilt-illumination columns, where a respective tilt-illumination column is configured to receive a respective beamlet from a respective electron beam source. For the system and method, a first tilt axis of a first tilt-illumination column may be orientated along a first angle and at least one additional tilt axis of at least one additional tilt-illumination column may be orientated along at least one additional angle different from the first angle, where each of the plurality of beamlets pass through a first common crossover volume.
    Type: Grant
    Filed: November 4, 2022
    Date of Patent: August 20, 2024
    Assignee: KLA Corporation
    Inventors: Xinrong Jiang, Youfei Jiang, Ralph Nyffenegger, Michael Steigerwald
  • Publication number: 20240153737
    Abstract: A system and method of a tilt-column electron beam imaging system is disclosed. The system may include an imaging sub-system. The imaging sub-system may include a plurality of electron beam sources configured to generate a plurality of beamlets. The imaging sub-system may further include a plurality of tilt-illumination columns, where a respective tilt-illumination column is configured to receive a respective beamlet from a respective electron beam source. For the system and method, a first tilt axis of a first tilt-illumination column may be orientated along a first angle and at least one additional tilt axis of at least one additional tilt-illumination column may be orientated along at least one additional angle different from the first angle, where each of the plurality of beam lets pass through a first common crossover volume.
    Type: Application
    Filed: November 4, 2022
    Publication date: May 9, 2024
    Inventors: Xinrong Jiang, Youfei Jiang, Ralph Nyffenegger, Michael Steigerwald
  • Publication number: 20240096586
    Abstract: A multi-electron beam system that forms hundreds of beamlets can focus the beamlets, reduce Coulomb interaction effects, and improve resolutions of the beamlets. A Wien filter with electrostatic and magnetic deflection fields can separate the secondary electron beams from the 5 primary electron beams and can correct the astigmatism and source energy dispersion blurs for all the beamlets simultaneously.
    Type: Application
    Filed: May 31, 2022
    Publication date: March 21, 2024
    Inventors: Xinrong JIANG, Christopher SEARS, Youfei JIANG, Sameet K. SHRIYAN, Jeong Ho LEE, Michael STEIGERWALD, Ralph NYFFENEGGER
  • Publication number: 20230395349
    Abstract: An electron-beam device includes a laser and a photocathode film. The photocathode film has a front side and a back side and emits a plurality of electron beamlets when illuminated from the back side using the laser. The electron-beam device also includes electrodes to extract the plurality of electron beamlets from the front side of the photocathode film and to control shapes of the plurality of electron beamlets.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 7, 2023
    Inventors: Xinrong Jiang, Youfei Jiang, Michael Steigerwald, Ralph Nyffenegger
  • Patent number: 11749495
    Abstract: Methods and systems for detecting charged particles from a specimen are provided. One system includes a first repelling mesh configured to repel charged particles from a specimen having an energy lower than a first predetermined energy and a second repelling mesh configured to repel the charged particles that pass through the first repelling mesh and have an energy that is lower than a second predetermined energy. The system also includes a first attracting mesh configured to attract the charged particles that pass through the first repelling mesh, are repelled by the second repelling mesh, and have an energy that is higher than the first predetermined energy and lower than the second predetermined energy. The system further includes a first detector configured to generate output responsive to the charged particles that pass through the first attracting mesh.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: September 5, 2023
    Assignee: KLA Corp.
    Inventors: Youfei Jiang, Michael Steigerwald
  • Publication number: 20230245933
    Abstract: The dual focused ion beam and scanning electron beam system includes an electron source that generates an electron beam and an ion source that generates an ion beam. The electron beam column directs an electron beam at a normal angle relative to a top surface of the stage. An ion beam column directs the ion beam at the stage. The ion beam is at an angle relative to the electron beam. A detector receives the electron beam reflected from the wafer on the stage.
    Type: Application
    Filed: February 2, 2022
    Publication date: August 3, 2023
    Inventors: Youfei JIANG, Michael STEIGERWALD, Christopher SEARS
  • Publication number: 20230104558
    Abstract: Methods and systems for detecting charged particles from a specimen are provided. One system includes a first repelling mesh configured to repel charged particles from a specimen having an energy lower than a first predetermined energy and a second repelling mesh configured to repel the charged particles that pass through the first repelling mesh and have an energy that is lower than a second predetermined energy. The system also includes a first attracting mesh configured to attract the charged particles that pass through the first repelling mesh, are repelled by the second repelling mesh, and have an energy that is higher than the first predetermined energy and lower than the second predetermined energy. The system further includes a first detector configured to generate output responsive to the charged particles that pass through the first attracting mesh.
    Type: Application
    Filed: October 5, 2021
    Publication date: April 6, 2023
    Inventors: Youfei Jiang, Michael Steigerwald
  • Publication number: 20210002536
    Abstract: Ionic superatomic materials that can be solution-processed into completely amorphous and homogeneous thin films are disclosed herein. The amorphous materials disclosed herein have tunable compositions and have electrical conductivities of up to 300 siemens per meter, thermal conductivities of 0.05 watt per meter per degree Kelvin, and optical transparencies of up to 92%. Application of these thin-films are also provided herein.
    Type: Application
    Filed: June 30, 2020
    Publication date: January 7, 2021
    Applicants: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK, CARNEGIE MELLON UNIVERSITY
    Inventors: Colin Nuckolls, Jingjing Yang, Alexander D. Christodoulides, Boyuan Zhang, Qizhi Xu, Amirali Zangiabadi, Christine McGinn, Samuel Peurifoy, Lingyun Dai, Elena Meirzadeh, Michael Steigerwald, Xavier Roy, Ioannis Kymissis, Jonathan A. Malen
  • Patent number: 8816303
    Abstract: A method of processing of an object comprises scanning a particle beam across a surface of the object and detecting electrons emerging from the object due to the scanning; determining a height difference between the surface of the object and a predetermined surface for each of plural of locations on the surface of the object based on the detected electrons; determining a processing intensity for each of the plural locations on the surface of the object based on the determined height differences; and directing a particle beam to the plural locations based on the determined processing intensities, in order to remove material from or deposit material on the object at the plural locations.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: August 26, 2014
    Assignee: Carl Zeiss Microscopy GmbH
    Inventors: Josef Biberger, Ralph Pulwey, Jaroslaw Paluszynski, Dietmar Doenitz, Hans Mathèe, Michael Steigerwald
  • Patent number: 8304750
    Abstract: Methods are disclosed that include exposing, in direct succession, portions of a surface of a sample to a charged particle beam, the portions of the surface of the sample forming a row in a first direction, the charged particle beam having an average spot size f at the surface of the sample, each portion being spaced from its neighboring portions by a distance of at least d in the first direction, and a ratio d/f being 2 or more.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: November 6, 2012
    Assignee: Carl Zeiss NTS GmbH
    Inventors: Dirk Preikszas, Michael Steigerwald, Joerg Ackermann
  • Patent number: 8283641
    Abstract: A positioning device and a particle beam apparatus including a positioning device ensure reliable positioning of a holder for holding an object at any working distance. The positioning device includes a positionable holder for holding the object. A light source generates a light beam which is guided in the direction of the positionable holder. A detector detects the light beam. An injection area injects particles of a particle beam such that they are guided in the direction of the positionable holder. The light beam passes the injection area. The injection area has an output side for the light beam and the particle beam, which is directed toward the holder. The detector includes a detector element situated in an area between the output side and the holder. The light source includes a light source element situated in an area which extends away from the holder, starting from the output side.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: October 9, 2012
    Assignee: Carl Zeiss NTS GmbH
    Inventors: Dietmar Dönitz, Dirk Preixszas, Michael Steigerwald
  • Publication number: 20120145895
    Abstract: A method of processing of an object comprises scanning a particle beam across a surface of the object and detecting electrons emerging from the object due to the scanning; determining a height difference between the surface of the object and a predetermined surface for each of plural of locations on the surface of the object based on the detected electrons; determining a processing intensity for each of the plural locations on the surface of the object based on the determined height differences; and directing a particle beam to the plural locations based on the determined processing intensities, in order to remove material from or deposit material on the object at the plural locations.
    Type: Application
    Filed: June 20, 2011
    Publication date: June 14, 2012
    Applicant: CARL ZEISS NTS GMBH
    Inventors: Josef BIBERGER, Ralph Pulwey, Jaroslaw Paluszynski, Dietmar Doenitz, Hans Mathèe, Michael Steigerwald
  • Patent number: 8063364
    Abstract: A particle optical apparatus has a particle source for generating at least one beam of charged particles, and a magnet arrangement having two pole plates, which are arranged spaced apart from one another, such that the at least one beam of charged particles in operation passes through the pole plates, wherein trenches are provided in the pole plates, in which trenches coil wires are arranged. The trenches, when viewed in a cross section transverse to an extension direction of the trenches, have a smaller width in a region of a surface of the pole plates, than in a region arranged at a distance from the surface.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: November 22, 2011
    Assignee: Carl Zeiss NTS GmbH
    Inventors: Dirk Preikszas, Michael Steigerwald, Daniel Tobias, Andreas Eisele, Momme Mommsen, Dietmar Doenitz, Christian Hendrich
  • Publication number: 20100294930
    Abstract: Methods are disclosed that include exposing, in direct succession, portions of a surface of a sample to a charged particle beam, the portions of the surface of the sample forming a row in a first direction, the charged particle beam having an average spot size fat the surface of the sample, each portion being spaced from its neighboring portions by a distance of at least din the first direction, and a ratio d/f being 2 or more.
    Type: Application
    Filed: December 12, 2008
    Publication date: November 25, 2010
    Applicant: CARL ZEISS NTS GMBH
    Inventors: Dirk Preikszas, Michael Steigerwald, Joerg Ackermann
  • Publication number: 20100155597
    Abstract: A particle optical apparatus has a particle source for generating at least one beam of charged particles, and a magnet arrangement having two pole plates, which are arranged spaced apart from one another, such that the at least one beam of charged particles in operation passes through the pole plates, wherein trenches are provided in the pole plates, in which trenches coil wires are arranged. The trenches, when viewed in a cross section transverse to an extension direction of the trenches, have a smaller width in a region of a surface of the pole plates, than in a region arranged at a distance from the surface.
    Type: Application
    Filed: December 22, 2009
    Publication date: June 24, 2010
    Applicant: CARL ZEISS NTS GMBH
    Inventors: Dirk PREIKSZAS, Michael STEIGERWALD, Daniel TOBIAS, Andreas EISELE, Momme MOMMSEN, Dietmar DOENITZ, Christian HENDRICH
  • Publication number: 20100044566
    Abstract: A positioning device and a particle beam apparatus including a positioning device ensure reliable positioning of a holder for holding an object at any working distance. The positioning device includes a positionable holder for holding the object. A light source generates a light beam which is guided in the direction of the positionable holder. A detector detects the light beam. An injection area injects particles of a particle beam such that they are guided in the direction of the positionable holder. The light beam passes the injection area. The injection area has an output side for the light beam and the particle beam, which is directed toward the holder. The detector includes a detector element situated in an area between the output side and the holder. The light source includes a light source element situated in an area which extends away from the holder, starting from the output side.
    Type: Application
    Filed: May 14, 2009
    Publication date: February 25, 2010
    Inventors: Dietmar DONITZ, Dirk PREIKSZAS, Michael STEIGERWALD
  • Patent number: 7518122
    Abstract: Ion sources, systems and methods are disclosed.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: April 14, 2009
    Assignee: ALIS Corporation
    Inventors: Billy W. Ward, John A. Notte, IV, Louis S. Farkas, III, Randall G. Percival, Raymond Hill, Ulrich Mantz, Michael Steigerwald