Patents by Inventor Lukas Kramer

Lukas Kramer 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: 11709181
    Abstract: The present disclosure concerns probe cassette 1 for holding a probe 60 in storage to provide automated transfer of the probe to a probe mount of a scanning probe microscope. The probe cassette comprising a first vacuum chamber C1 with a volume V1, and a second vacuum chamber C2 with a volume V2, and a first and second vacuum channel 10, respectively fluidly connecting the first and second vacuum chamber to an outlet 30 fluidly connectable to an external vacuum, such that upon application of the external vacuum a mounting position of the probe relative to the cassette and a mounting position of the cassette relative to the sample stage is maintained. The probe cassette arranged to allow breaking a vacuum condition in the second chamber maintaining the mounting position of the probe before breaking a vacuum condition in the first chamber maintaining a mounting position of the probe cassette.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: July 25, 2023
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Roelof Willem Herfst, Lukas Kramer, Anton Adriaan Bijnagte
  • Publication number: 20220390486
    Abstract: The present disclosure concerns probe cassette 1 for holding a probe 60 in storage to provide automated transfer of the probe to a probe mount of a scanning probe microscope. The probe cassette comprising a first vacuum chamber C1 with a volume V1, and a second vacuum chamber C2 with a volume V2, and a first and second vacuum channel 10, respectively fluidly connecting the first and second vacuum chamber to an outlet 30 fluidly connectable to an external vacuum, such that upon application of the external vacuum a mounting position of the probe relative to the cassette and a mounting position of the cassette relative to the sample stage is maintained. The probe cassette arranged to allow breaking a vacuum condition in the second chamber maintaining the mounting position of the probe before breaking a vacuum condition in the first chamber maintaining a mounting position of the probe cassette.
    Type: Application
    Filed: November 6, 2020
    Publication date: December 8, 2022
    Inventors: Roelof Willem HERFST, Lukas KRAMER, Anton Adriaan BIJNAGTE
  • Patent number: 11402404
    Abstract: A method of operating a scanning probe microscope, wherein a control loop is provided which is configured for controlling one or more feedback parameters of the scanning probe microscope. One or more system identification measurements are performed during operation of the control loop, wherein during the one or more system identification measurements an excitation signal with a plurality of frequency components is introduced in the control loop and a resulting response signal indicative of a cantilever displacement or a stage-sample distance between a sensor device and a sample is measured. A model response function is identified using said excitation signal and said resulting response signal, wherein one or more settings and/or input signals are adapted in the control loop based on the identified model response function. The scanning probe microscope is used for characterization of the sample using the adapted one or more settings and/or input signals.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: August 2, 2022
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Jan Jacobus Benjamin Biemond, Lukas Kramer, Jasper Winters
  • Publication number: 20210311090
    Abstract: A method of operating a scanning probe microscope, wherein a control loop is provided which is configured for controlling one or more feedback parameters of the scanning probe microscope. One or more system identification measurements are performed during operation of the control loop, wherein during the one or more system identification measurements an excitation signal with a plurality of frequency components is introduced in the control loop and a resulting response signal indicative of a cantilever displacement or a stage-sample distance between a sensor device and a sample is measured. A model response function is identified using said excitation signal and said resulting response signal, wherein one or more settings and/or input signals are adapted in the control loop based on the identified model response function. The scanning probe microscope is used for characterization of the sample using the adapted one or more settings and/or input signals.
    Type: Application
    Filed: August 8, 2019
    Publication date: October 7, 2021
    Inventors: Jan Jacobus Benjamin BIEMOND, Lukas KRAMER, Jasper WINTERS
  • Patent number: 10948458
    Abstract: The present document relates to a anatomic force microscope comprising a probe comprising a probe tip configured to sense a sample disposed proximate to the probe tip, a detector to detect a deflection of the probe tip, an actuator coupled to the probe and configured to move the probe in a sense state with the sample at a predetermined force set point and a vibrator in communication with the sample to provide a vibration to the sample, the vibration comprising a modulation frequency, wherein the acoustic vibrator is configured to provide the vibration in a modulation period after an initial sense period without modulation and wherein the probe is moved during or after said modulation period to a successive sample position over said sample while moving the probe in a non-contact state.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: March 16, 2021
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Hamed Sadeghian Marnani, Lukas Kramer, Maarten Hubertus van Es
  • Publication number: 20190383774
    Abstract: The present document relates to a anatomic force microscope comprising a probe comprising a probe tip configured to sense a sample disposed proximate to the probe tip, a detector to detect a deflection of the probe tip, an actuator coupled to the probe and configured to move the probe in a sense state with the sample at a predetermined force set point and a vibrator in communication with the sample to provide a vibration to the sample, the vibration comprising a modulation frequency, wherein the acoustic vibrator is configured to provide the vibration in a modulation period after an initial sense period without modulation and wherein the probe is moved during or after said modulation period to a successive sample position over said sample while moving the probe in a non-contact state.
    Type: Application
    Filed: January 11, 2018
    Publication date: December 19, 2019
    Inventors: Hamed Sadeghian Marnani, Lukas Kramer, Maarten Hubertus van Es