Patents by Inventor Shawn McVey

Shawn McVey 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: 11378532
    Abstract: An inspection system serves to qualify semiconductor structures. The inspection system has an ion beam source for space-resolved exposition of the structures to be qualified with an ion beam. The inspection system also includes a secondary ion detection device with a mass spectrometer. The mass spectrometer is configured to measure an ion mass to charge ratio in a given bandwidth.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: July 5, 2022
    Assignees: Carl Zeiss SMT GmbH, Carl Zeiss Microscopy, LLC
    Inventors: Brett Lewis, Wilhelm Kuehn, Deying Xia, Shawn McVey, Ulrich Mantz
  • Publication number: 20210109046
    Abstract: An inspection system serves to qualify semiconductor structures. The inspection system has an ion beam source for space-resolved exposition of the structures to be qualified with an ion beam. The inspection system also includes a secondary ion detection device with a mass spectrometer. The mass spectrometer is configured to measure an ion mass to charge ratio in a given bandwidth.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 15, 2021
    Inventors: Brett Lewis, Wilhelm Kuehn, Deying Xia, Shawn McVey, Ulrich Mantz
  • Patent number: 9640364
    Abstract: The present disclosure relates to a gas field ion source comprising a housing, an electrically conductive tip arranged within the housing, a gas supply for supplying one or more gases to the housing, wherein the one or more gases comprise neon or a noble gas with atoms having a mass larger than neon, and an extractor electrode having a hole to permit ions generated in the neighborhood of the tip to pass through the hole. A surface of the extractor electrode facing the tip can be made of a material having a negative secondary ion sputter rate of less than 10?5 per incident neon ion.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: May 2, 2017
    Assignee: Carl Zeiss Microscopy, LLC
    Inventors: John A. Notte, IV, FHM-Faridur Rahman, Weijie Huang, Shawn McVey
  • Patent number: 9627172
    Abstract: The disclosure relates to a method of operating a gas field ion beam system in which the gas field ion beam system comprises an external housing, an internal housing, arranged within the external housing, an electrically conductive tip arranged within the internal housing, a gas supply for supplying one or more gases to the internal housing, the gas supply having a tube terminating within the internal housing, and an extractor electrode having a hole to permit ions generated in the neighborhood of the tip to pass through the hole into the external housing. The method comprises the step of regularly heating the external housing, the internal housing, the electrically conductive tip, the tube and the extractor electrode to a temperature of above 100° C.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: April 18, 2017
    Assignee: Carl Zeiss Microscopy, LLC
    Inventors: John A. Notte, IV, Weijie Huang, FHM-Faridur Rahman, Shawn McVey
  • Patent number: 9536699
    Abstract: The present disclosure relates to a gas field ion source having a gun housing, an electrically conductive gun can base attached to the gun housing, an inner tube mounted to the gun can base, the inner tube being made of an electrically isolating ceramic, an electrically conductive tip attached to the inner tube, an outer tube mounted to the gun can base, the outer tube being made of an electrically isolating ceramic, and an extractor electrode attached to the outer tube. The extractor electrode can have an opening for the passage of ions generated in proximity to the electrically conductive tip.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: January 3, 2017
    Assignee: Carl Zeiss Microscopy, LLC
    Inventors: John A. Notte, IV, Weijie Huang, Raymond Hill, FHM-Faridur Rahman, Alexander Groholski, Shawn McVey
  • Publication number: 20160111243
    Abstract: The disclosure relates to a method of operating a gas field ion beam system in which the gas field ion beam system comprises an external housing, an internal housing, arranged within the external housing, an electrically conductive tip arranged within the internal housing, a gas supply for supplying one or more gases to the internal housing, the gas supply having a tube terminating within the internal housing, and an extractor electrode having a hole to permit ions generated in the neighborhood of the tip to pass through the hole into the external housing. The method comprises the step of regularly heating the external housing, the internal housing, the electrically conductive tip, the tube and the extractor electrode to a temperature of above 100° C.
    Type: Application
    Filed: December 15, 2015
    Publication date: April 21, 2016
    Inventors: John A. Notte, IV, Weijie Huang, FHM-Faridur Rahman, Shawn McVey
  • Publication number: 20160104598
    Abstract: The present disclosure relates to a gas field ion source comprising a housing, an electrically conductive tip arranged within the housing, a gas supply for supplying one or more gases to the housing, wherein the one or more gases comprise neon or a noble gas with atoms having a mass larger than neon, and an extractor electrode having a hole to permit ions generated in the neighborhood of the tip to pass through the hole. A surface of the extractor electrode facing the tip can be made of a material having a negative secondary ion sputter rate of less than 10?5 per incident neon ion.
    Type: Application
    Filed: December 15, 2015
    Publication date: April 14, 2016
    Inventors: John A. Notte, IV, FHM-Faridur Rahman, Weijie Huang, Shawn McVey
  • Patent number: 9218935
    Abstract: The present disclosure relates to a gas field ion source comprising a housing, an electrically conductive tip arranged within the housing, a gas supply for supplying one or more gases to the housing, wherein the one or more gases comprise neon or a noble gas with atoms having a mass larger than neon, and an extractor electrode having a hole to permit ions generated in the neighborhood of the tip to pass through the hole. A surface of the extractor electrode facing the tip can be made of a material having a negative secondary ion sputter rate of less than 10?5 per incident neon ion.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: December 22, 2015
    Assignee: Carl Zeiss Microscopy, LLC
    Inventors: John A. Notte, IV, FHM-Faridur Rahman, Weijie Huang, Shawn McVey
  • Patent number: 9218934
    Abstract: The disclosure relates to a method of operating a gas field ion beam system in which the gas field ion beam system comprises an external housing, an internal housing, arranged within the external housing, an electrically conductive tip arranged within the internal housing, a gas supply for supplying one or more gases to the internal housing, the gas supply having a tube terminating within the internal housing, and an extractor electrode having a hole to permit ions generated in the neighborhood of the tip to pass through the hole into the external housing. The method comprises the step of regularly heating the external housing, the internal housing, the electrically conductive tip, the tube and the extractor electrode to a temperature of above 100° C.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: December 22, 2015
    Assignee: Carl Zeiss Microscopy, LLC
    Inventors: John A. Notte, IV, Weijie Huang, FHM-Faridur Rahman, Shawn McVey
  • Patent number: 9000396
    Abstract: Disclosed are devices, systems, and methods are disclosed that include: (a) a first material layer positioned on a first surface of a support structure and configured to generate secondary electrons in response to incident charged particles that strike the first layer, the first layer including an aperture configured to permit a portion of the incident charged particles to pass through the aperture; and (b) a second material layer positioned on a second surface of the support structure and separated from the first layer by a distance of 0.5 cm or more, the second layer being configured to generate secondary electrons in response to charged particles that pass through the aperture and strike the second layer, where the device is a charged particle detector.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: April 7, 2015
    Assignee: Carl Zeiss Microscopy, LLC
    Inventors: Raymond Hill, Shawn McVey, John Notte, IV
  • Publication number: 20150008334
    Abstract: The present disclosure relates to a gas field ion source comprising a housing, an electrically conductive tip arranged within the housing, a gas supply for supplying one or more gases to the housing, wherein the one or more gases comprise neon or a noble gas with atoms having a mass larger than neon, and an extractor electrode having a hole to permit ions generated in the neighborhood of the tip to pass through the hole. A surface of the extractor electrode facing the tip can be made of a material having a negative secondary ion sputter rate of less than 10?5 per incident neon ion.
    Type: Application
    Filed: June 25, 2014
    Publication date: January 8, 2015
    Inventors: John A. Notte, IV, FHM-Faridur Rahman, Weijie Huang, Shawn McVey
  • Publication number: 20150008333
    Abstract: The disclosure relates to a method of operating a gas field ion beam system in which the gas field ion beam system comprises an external housing, an internal housing, arranged within the external housing, an electrically conductive tip arranged within the internal housing, a gas supply for supplying one or more gases to the internal housing, the gas supply having a tube terminating within the internal housing, and an extractor electrode having a hole to permit ions generated in the neighborhood of the tip to pass through the hole into the external housing. The method comprises the step of regularly heating the external housing, the internal housing, the electrically conductive tip, the tube and the extractor electrode to a temperature of above 100° C.
    Type: Application
    Filed: June 25, 2014
    Publication date: January 8, 2015
    Inventors: John A. Notte, IV, Weijie Huang, FHM-Faridur Rahman, Shawn McVey
  • Publication number: 20150008332
    Abstract: The present disclosure relates to a gas field ion source having a gun housing, an electrically conductive gun can base attached to the gun housing, an inner tube mounted to the gun can base, the inner tube being made of an electrically isolating ceramic, an electrically conductive tip attached to the inner tube, an outer tube mounted to the gun can base, the outer tube being made of an electrically isolating ceramic, and an extractor electrode attached to the outer tube. The extractor electrode can have an opening for the passage of ions generated in proximity to the electrically conductive tip.
    Type: Application
    Filed: June 25, 2014
    Publication date: January 8, 2015
    Inventors: John A. Notte, IV, Weijie Huang, Raymond Hill, FHM-Faridur Rahman, Alexander Groholski, Shawn McVey
  • Publication number: 20120068068
    Abstract: Disclosed are devices, systems, and methods are disclosed that include: (a) a first material layer positioned on a first surface of a support structure and configured to generate secondary electrons in response to incident charged particles that strike the first layer, the first layer including an aperture configured to permit a portion of the incident charged particles to pass through the aperture; and (b) a second material layer positioned on a second surface of the support structure and separated from the first layer by a distance of 0.5 cm or more, the second layer being configured to generate secondary electrons in response to charged particles that pass through the aperture and strike the second layer, where the device is a charged particle detector.
    Type: Application
    Filed: October 20, 2011
    Publication date: March 22, 2012
    Applicant: CARL ZEISS NTS, LLC
    Inventors: Raymond Hill, Shawn McVey, John Notte, IV
  • Patent number: 7521693
    Abstract: Ion sources, systems and methods are disclosed.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: April 21, 2009
    Assignee: ALIS Corporation
    Inventors: Billy W. Ward, John A. Notte, IV, Louis S. Farkas, III, Randall G. Percival, Raymond Hill, Shawn McVey, Johannes Bihr
  • Publication number: 20070205375
    Abstract: Ion sources, systems and methods are disclosed.
    Type: Application
    Filed: November 15, 2006
    Publication date: September 6, 2007
    Inventors: Billy Ward, John Notte, Louis Farkas, Randall Percival, Raymond Hill, Shawn McVey, Johannes Bihr