Patents by Inventor Christof Baur

Christof Baur 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: 20250147412
    Abstract: A method for examining a blank of a microlithographic photomask, including the steps of: a) arranging the blank on a first stage of a first examination apparatus such that a first and a second edge of the blank rest against stops of the first stage, b) ascertaining an examination location on the blank in a first coordinate system with the aid of the first examination apparatus, c) arranging the blank on a second stage of a second examination apparatus having an image recording unit, d) recording at least one image of the blank using the image recording unit such that the first and second edge are captured at least in part, and e) ascertaining a transformation rule on the basis of the first and second edge captured in the at least one image, in order to transform the examination location captured in the first coordinate system into a second coordinate system (142) of the second examination apparatus.
    Type: Application
    Filed: November 5, 2024
    Publication date: May 8, 2025
    Inventors: Christof Baur, Michael Budach
  • Patent number: 12292680
    Abstract: The present application relates to a method for disposing of excess material of a photolithographic mask, wherein the method comprises the following steps: (a) enlarging a surface of the excess material; (b) displacing the enlarged excess material on the photolithographic mask using at least one first probe of a scanning probe microscope; and (c) removing the displaced enlarged excess material from the photolithographic mask.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: May 6, 2025
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Michael Budach, Christof Baur, Klaus Edinger, Tristan Bret
  • Patent number: 12164226
    Abstract: The present application relates to a method for disposing of excess material of a photolithographic mask, wherein the method comprises the following steps: (a) enlarging a surface of the excess material; (b) displacing the enlarged excess material on the photolithographic mask using at least one first probe of a scanning probe microscope; and (c) removing the displaced enlarged excess material from the photolithographic mask.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: December 10, 2024
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Michael Budach, Christof Baur, Klaus Edinger, Tristan Bret
  • Publication number: 20240295833
    Abstract: The present application relates to an apparatus and to a method for removing at least a single particulate from a substrate, especially an optical element for extreme ultraviolet (EUV) photolithography, wherein the apparatus comprises: (a) an analysis unit designed to determine at least one constituent of a material composition of the at least one single particulate; and (b) at least one gas injection system designed to provide a gas matched to the particular constituent in an environment of the at least one single particulate; (c) wherein the matched gas contributes to removing the at least one single particulate from the substrate.
    Type: Application
    Filed: December 5, 2023
    Publication date: September 5, 2024
    Inventors: Klaus Edinger, Christian Felix Hermanns, Tilo Sielaff, Jens Oster, Christof Baur, Maksym Kompaniiets
  • Publication number: 20240272198
    Abstract: The present invention relates to methods and devices for extending a time period until changing a measuring tip of a scanning probe microscope. In particular, the invention relates to a method for hardening a measuring tip for a scanning probe microscope, comprising the step of: Processing the measuring tip with a beam of an energy beam source, the energy beam source being part of a scanning electron microscope.
    Type: Application
    Filed: April 3, 2024
    Publication date: August 15, 2024
    Inventors: Gabriel Baralia, Rainer Becker, Kinga Kornilov, Christof Baur, Hans Hermann Pieper
  • Publication number: 20240230709
    Abstract: The present invention relates to a device for operating at least one bending beam in at least one closed control loop, wherein the device has: (a) at least one first interface designed to receive at least one controlled variable of the at least one control loop; (b) at least one programmable logic circuit designed to process a control error of the at least one control loop using a bit depth greater than the bit depth of the controlled variable; and (c) at least one second interface designed to provide a manipulated variable of the at least one control loop.
    Type: Application
    Filed: March 26, 2024
    Publication date: July 11, 2024
    Inventors: Christof Baur, Florian Demski
  • Patent number: 11977097
    Abstract: The present invention relates to methods and devices for extending a time period until changing a measuring tip of a scanning probe microscope. In particular, the invention relates to a method for hardening a measuring tip for a scanning probe microscope, comprising the step of: Processing the measuring tip with a beam of an energy beam source, the energy beam source being part of a scanning electron microscope.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: May 7, 2024
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Gabriel Baralia, Rainer Becker, Kinga Kornilov, Christof Baur, Hans Hermann Pieper
  • Patent number: 11965910
    Abstract: The present invention relates to a device for operating at least one bending beam in at least one closed control loop, wherein the device has: (a) at least one first interface designed to receive at least one controlled variable of the at least one control loop; (b) at least one programmable logic circuit designed to process a control error of the at least one control loop using a bit depth greater than the bit depth of the controlled variable; and (c) at least one second interface designed to provide a manipulated variable of the at least one control loop.
    Type: Grant
    Filed: March 30, 2023
    Date of Patent: April 23, 2024
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Christof Baur, Florian Demski
  • Publication number: 20240077800
    Abstract: The present application relates to a method for removing a particle from a photolithographic mask, including the following steps: (a) positioning a manipulator, which is movable relative to the mask, in the vicinity of the particle to be removed; (b) connecting the manipulator to the particle by depositing a connecting material on the manipulator and/or the particle from the vapor phase; (c) removing the particle by moving the manipulator relative to the photolithographic mask; and (d) separating the removed particle from the manipulator by carrying out a particle-beam-induced etching process which removes at least a portion of the manipulator.
    Type: Application
    Filed: November 13, 2023
    Publication date: March 7, 2024
    Inventors: Christof Baur, Hans Hermann Pieper
  • Patent number: 11899359
    Abstract: The present application relates to a method for removing a particle from a photolithographic mask, including the following steps: (a) positioning a manipulator, which is movable relative to the mask, in the vicinity of the particle to be removed; (b) connecting the manipulator to the particle by depositing a connecting material on the manipulator and/or the particle from the vapor phase; (c) removing the particle by moving the manipulator relative to the photolithographic mask; and (d) separating the removed particle from the manipulator by carrying out a particle-beam-induced etching process which removes at least a portion of the manipulator.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: February 13, 2024
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Christof Baur, Hans Hermann Pieper
  • Patent number: 11886126
    Abstract: The present application relates to an apparatus and to a method for removing at least a single particulate from a substrate, especially an optical element for extreme ultraviolet (EUV) photolithography, wherein the apparatus comprises: (a) an analysis unit designed to determine at least one constituent of a material composition of the at least one single particulate; and (b) at least one gas injection system designed to provide a gas matched to the particular constituent in an environment of the at least one single particulate; (c) wherein the matched gas contributes to removing the at least one single particulate from the substrate.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: January 30, 2024
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Klaus Edinger, Christian Felix Hermanns, Tilo Sielaff, Jens Oster, Christof Baur, Maksym Kompaniiets
  • Patent number: 11874598
    Abstract: The present application relates to a method for disposing of excess material of a photolithographic mask, wherein the method comprises the following steps: (a) enlarging a surface of the excess material; (b) displacing the enlarged excess material on the photolithographic mask using at least one first probe of a scanning probe microscope; and (c) removing the displaced enlarged excess material from the photolithographic mask.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: January 16, 2024
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Michael Budach, Christof Baur, Klaus Edinger, Tristan Bret
  • Publication number: 20230418153
    Abstract: The invention proposes a method for processing a sample with a processing arrangement, comprising the steps of: taking up a particle adhering on a sample surface of the sample with a measuring tip of the processing arrangement; modifying a physical and/or chemical nature of a surface section on the sample or on a deposition unit for providing an activated surface section; and moving the measuring tip into an interaction region of the activated surface section in which an attractive interaction acts between the particle taken up by the measuring tip and the activated surface section in order to transfer the particle from the measuring tip to the activated surface section.
    Type: Application
    Filed: August 21, 2023
    Publication date: December 28, 2023
    Inventors: Christof Baur, Julia Weber, Dominik Schnoor, Maximilian Rumler, Johannes Schoeneberg, Kinga Kornilov
  • Patent number: 11796563
    Abstract: The present application relates to an apparatus for a scanning probe microscope, said apparatus having: (a) at least one first measuring probe having at least one first cantilever, the free end of which has a first measuring tip; (b) at least one first reflective area arranged in the region of the free end of the at least one first cantilever and embodied to reflect at least two light beams in different directions; and (c) at least two first interferometers embodied to use the at least two light beams reflected by the at least one first reflective area to determine the position of the first measuring tip.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: October 24, 2023
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Ulrich Matejka, Christof Baur
  • Patent number: 11733186
    Abstract: The present application relates to a scanning probe microscope comprising a probe arrangement for analyzing at least one defect of a photolithographic mask or of a wafer, wherein the scanning probe microscope comprises: (a) at least one first probe embodied to analyze the at least one defect; (b) means for producing at least one mark, by use of which the position of the at least one defect is indicated on the mask or on the wafer; and (c) wherein the mark is embodied in such a way that it may be detected by a scanning particle beam microscope.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: August 22, 2023
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Gabriel Baralia, Christof Baur, Klaus Edinger, Thorsten Hofmann, Michael Budach
  • Publication number: 20230251285
    Abstract: The present invention relates to a device for operating at least one bending beam in at least one closed control loop, wherein the device has: (a) at least one first interface designed to receive at least one controlled variable of the at least one control loop; (b) at least one programmable logic circuit designed to process a control error of the at least one control loop using a bit depth greater than the bit depth of the controlled variable; and (c) at least one second interface designed to provide a manipulated variable of the at least one control loop.
    Type: Application
    Filed: March 30, 2023
    Publication date: August 10, 2023
    Inventors: Christof Baur, Florian Demski
  • Patent number: 11680963
    Abstract: The present invention relates to a method for examining a measuring tip of a scanning probe microscope, wherein the method includes the following steps: (a) generating at least one test structure before a sample is analyzed, or after said sample has been analyzed, by the measuring tip; and (b) examining the measuring tip with the aid of the at least one generated test structure.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: June 20, 2023
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Kinga Kornilov, Christof Baur, Markus Bauer
  • Publication number: 20230152089
    Abstract: The present invention relates to a method for determining an alignment of a photomask on a sample stage which is displaceable along at least one axis that is parallel to a chuck surface of the sample stage, and is rotatable about at least one axis that is perpendicular to the chuck surface, which method comprises the following step: rotating the sample stage by a predefined angle and measuring a height change of the photomask during rotation at a predetermined, non-vanishing distance with respect to the rotation axis for the purpose of determining the alignment of the photomask on the sample stage.
    Type: Application
    Filed: January 18, 2023
    Publication date: May 18, 2023
    Inventors: Christof Baur, Tilo Sielaff, Arne Adams
  • Patent number: 11630124
    Abstract: The present invention relates to a device for operating at least one bending beam in at least one closed control loop, wherein the device has: (a) at least one first interface designed to receive at least one controlled variable of the at least one control loop; (b) at least one programmable logic circuit designed to process a control error of the at least one control loop using a bit depth greater than the bit depth of the controlled variable; and (c) at least one second interface designed to provide a manipulated variable of the at least one control loop.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: April 18, 2023
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Christof Baur, Florian Demski
  • Patent number: 11592461
    Abstract: The present invention relates to an apparatus for examining and/or processing a sample, said apparatus comprising: (a) a scanning particle microscope for providing a beam of charged particles, which can be directed on a surface of the sample; and (b) a scanning probe microscope with a deflectable probe; (c) wherein a detection structure is attached to the deflectable probe.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: February 28, 2023
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Christof Baur, Michael Budach