Patents by Inventor Christian Bretthauer

Christian Bretthauer 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: 20230160732
    Abstract: A thermoresistive micro sensor device includes a semiconductor chip; a through hole, which runs through the semiconductor chip from an upper side to a lower side; electrically conductive structures, wherein the middle section of each of the electrically conductive structures spans over the through hole at the upper side of the semiconductor chip; an electrically insulating arrangement for electrically insulating the electrically conductive structures and the semiconductor chip from each other, wherein the through hole runs through the electrically insulating arrangement; and a contact arrangement including contacts, wherein each of the contacts is electrically connected to one of the first end sections or one of the second end sections, so that electrical energy is fed to at least one of the electrically conductive structures to heat the respective electrically conductive structure, and so that an electrical resistance of one of the electrically conductive structures is measured at the contact arrangement.
    Type: Application
    Filed: December 13, 2022
    Publication date: May 25, 2023
    Inventors: Martin Seidl, Christian Bretthauer, Wolfgang Klein, Ulrich Krumbein, David Tumpold
  • Publication number: 20230114068
    Abstract: A gas sensor comprises a membrane, a first plate arranged on a first side of the membrane and having through openings for the passage of a gas, a second plate arranged on a second side of the membrane, the second side being situated opposite the first side, and an electronic circuit, which is connected to the membrane, the first plate and the second plate and causes the membrane to emit ultrasonic radiation, and which is configured to determine a resonant frequency of the ultrasonic radiation.
    Type: Application
    Filed: August 30, 2022
    Publication date: April 13, 2023
    Inventors: Matthias EBERL, Christian BRETTHAUER
  • Patent number: 11611835
    Abstract: A MicroElectroMechanical Structure (MEMS) accelerometer includes a piezoelectric membrane including at least one electrode and an inertial mass, the piezoelectric membrane being affixed to a holder; and a circuit for evaluating sums and differences of signals associated with the at least one electrode to determine a three-dimensional acceleration direction, wherein the at least one electrode includes a segmented electrode, and wherein the segmented electrode includes four segmentation zones.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: March 21, 2023
    Assignee: Infineon Technologies AG
    Inventors: Christian Bretthauer, Pradyumna Mishra, Daniel Neumaier, David Tumpold
  • Publication number: 20220402752
    Abstract: A MEMS vibration sensor includes a membrane having an inertial mass, the membrane being affixed to a holder of the MEMS vibration sensor; and a segmented backplate spaced apart from the membrane, the segmented backplate being affixed to the holder.
    Type: Application
    Filed: June 18, 2021
    Publication date: December 22, 2022
    Applicants: Infineon Technologies AG, Infineon Technologies AG
    Inventors: Somu Goswami, Christian Bretthauer, Matthias Friedrich Herrmann, Gunar Lorenz
  • Patent number: 11530968
    Abstract: An apparatus for analyzing the particulate matter content of an aerosol includes an aerosol chamber configured to receive an aerosol, the particulate matter content of which should be analyzed, at least one ultrasonic generator configured to produce ultrasonic waves in the aerosol received in the aerosol chamber, an ultrasonic detector configured to detect ultrasonic waves produced by the at least one ultrasonic generator in the aerosol, and an evaluator having a data exchange communication link with the ultrasonic detector and configured to ascertain the matter content on the basis of signals output by the ultrasonic detector. The ultrasonic generator and the ultrasonic detector are positioned relative to one another such that a path length to be traversed by ultrasonic waves between the ultrasonic generator and the ultrasonic detector is less than 1 cm.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: December 20, 2022
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Alfons Dehe, Christian Bretthauer
  • Patent number: 11353431
    Abstract: A photoacoustic sensor comprises an emitter for emitting electromagnetic radiation at a first wavelength and electromagnetic radiation at a second wavelength, wherein the first wavelength is for photoacoustically detecting particulate matter in a measurement cavity and the second wavelength is for photoacoustically detecting the particulate matter and at least one target gas in the measurement cavity. The photoacoustic sensor further comprises an acoustic transducer for transducing a first acoustic signal into a first sensor signal depending on an interaction of the electromagnetic radiation at the first wavelength and the particulate matter, and for transducing a second acoustic signal into a second sensor signal depending on an interaction of the electromagnetic radiation at the second wavelength with the particulate matter and the at least one target gas.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: June 7, 2022
    Assignee: INFINEON TECHNOLOGIES AG
    Inventor: Christian Bretthauer
  • Publication number: 20220167095
    Abstract: A MEMS device includes a MEMS sound transducer, and control circuitry. The control circuitry includes a supply signal provider for providing a high-level supply signal and read-out circuitry for receiving an output signal from the MEMS sound transducer, and a switching arrangement for selectively connecting the MEMS sound transducer to the supply signal provider, and for selectively connecting the MEMS sound transducer to the read-out circuitry based on a control signal. The control circuitry provides the control signal having an ultrasonic actuation pattern to the switching arrangement during a first condition TX of the control signal, wherein the ultrasonic actuation pattern of the control signal triggers the switching arrangement for alternately coupling the high-level supply signal to the MEMS sound transducer.
    Type: Application
    Filed: September 24, 2021
    Publication date: May 26, 2022
    Inventors: Niccol├│ De Milleri, Christian Bretthauer, Alessandro Caspani, Alessandra Fusco
  • Publication number: 20210382085
    Abstract: A combined MicroElectroMechanical structure (MEMS) includes a first piezoelectric membrane having one or more first electrodes, the first piezoelectric membrane being affixed between a first holder and a second holder; and a second piezoelectric membrane having an inertial mass and one or more second electrodes, the second piezoelectric membrane being affixed between the second holder and a third holder.
    Type: Application
    Filed: June 9, 2020
    Publication date: December 9, 2021
    Inventors: Christian Bretthauer, Pradyumna Mishra, Daniel Neumaier, David Tumpold
  • Publication number: 20210385584
    Abstract: A combined MicroElectroMechanical structure (MEMS) includes a first piezoelectric membrane having one or more first electrodes, the first piezoelectric membrane being affixed between a first holder and a second holder; and a second piezoelectric membrane having an inertial mass and one or more second electrodes, the second piezoelectric membrane being affixed between the second holder and a third holder.
    Type: Application
    Filed: June 22, 2021
    Publication date: December 9, 2021
    Inventors: Somu Goswami, Christian Bretthauer, Matthias Friedrich Herrmann, Gunar Lorenz, Pradyumna Mishra, Daniel Neumaier, David Tumpold
  • Publication number: 20210242891
    Abstract: An apparatus for correcting an input signal is configured for receiving the input signal, the received input signal comprising a series of input values. The apparatus is configured for matching a series of template values to the series of input values by warping the series of template values and the series of input values relatively to each other so as to assign one or more template values to one or more input values, wherein the series of template values represents an approximation of a noise signal that is expected to be comprised in the input signal. The apparatus is configured for obtaining a series of corrected input values based on a mismatch between the input values and their respective assigned template values. The apparatus is configured for providing a corrected signal based on the series of corrected input values.
    Type: Application
    Filed: January 8, 2021
    Publication date: August 5, 2021
    Inventors: Alessandra Fusco, Christian Bretthauer
  • Patent number: 11076217
    Abstract: A portable device includes a microphone structure for converting a received audio signal into an electronic signal representing the received audio signal and for transceiving an ultrasonic wave by transmitting the ultrasonic wave and by receiving a reflection of the ultrasonic wave. The portable device includes a control unit for evaluating the reflection of the ultrasonic wave to obtain an evaluation result and for controlling an operation of the portable device based on the evaluation result.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: July 27, 2021
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Daniel Neumaier, Christian Bretthauer, Dietmar Straeussnigg
  • Patent number: 10926999
    Abstract: In accordance with an embodiment, a microelectromechanical transducer includes a displaceable membrane having an undulated section comprising at least one undulation trough and at least one undulation peak and a plurality of piezoelectric unit cells. At least one piezoelectric unit cell is provided in each case in at least one undulation trough and at least one undulation peak, where each piezoelectric unit cell has a piezoelectric layer and at least one electrode in electrical contact with the piezoelectric layer. The membrane may be formed as a planar component having a substantially larger extent in a first and a second spatial direction, which are orthogonal to one another, than in a third spatial direction, which is orthogonal to the first and the second spatial direction and defines an axial direction of the membrane.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: February 23, 2021
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Christian Bretthauer, Alfons Dehe, Alfred Sigi
  • Publication number: 20210017016
    Abstract: A MEMS sound transducer element is operable in an audio and an ultrasonic range. The MEMS sound transducer element includes a first electrode structure, wherein a conductive material of the first electrode structure includes a plurality of electrically isolated electrode segments, and a second electrode structure spaced apart from the first electrode structure, wherein the first electrode structure and the second electrode structure are operable as an audio sound transducer. A first subset of the plurality of electrically isolated electrode segments of the first electrode structure is, in conjunction with the second electrode structure, operable as an ultrasonic or audio emitter, and a second subset of the plurality of the electrically isolated electrode segments of the first electrode structure is, in conjunction with the second electrode structure, operable as an ultrasonic or audio receiver.
    Type: Application
    Filed: June 8, 2020
    Publication date: January 21, 2021
    Inventors: Sebastian Anzinger, Christian Bretthauer, Marc Fueldner
  • Publication number: 20210014600
    Abstract: A portable device includes a microphone structure for converting a received audio signal into an electronic signal representing the received audio signal and for transceiving an ultrasonic wave by transmitting the ultrasonic wave and by receiving a reflection of the ultrasonic wave. The portable device includes a control unit for evaluating the reflection of the ultrasonic wave to obtain an evaluation result and for controlling an operation of the portable device based on the evaluation result.
    Type: Application
    Filed: May 20, 2020
    Publication date: January 14, 2021
    Inventors: Daniel Neumaier, Christian Bretthauer, Dietmar Straeussnigg
  • Publication number: 20200393277
    Abstract: A thermoresistive micro sensor device includes a semiconductor chip; a through hole, which runs through the semiconductor chip from an upper side to a lower side; electrically conductive structures, wherein the middle section of each of the electrically conductive structures spans over the through hole at the upper side of the semiconductor chip; an electrically insulating arrangement for electrically insulating the electrically conductive structures and the semiconductor chip from each other, wherein the through hole runs through the electrically insulating arrangement; and a contact arrangement including contacts, wherein each of the contacts is electrically connected to one of the first end sections or one of the second end sections, so that electrical energy is fed to at least one of the electrically conductive structures to heat the respective electrically conductive structure, and so that an electrical resistance of one of the electrically conductive structures is measured at the contact arrangement.
    Type: Application
    Filed: May 7, 2020
    Publication date: December 17, 2020
    Inventors: Martin Seidl, Christian Bretthauer, Wolfgang Klein, Ulrich Krumbein, David Tumpold
  • Publication number: 20200340904
    Abstract: An apparatus for analyzing the particulate matter content of an aerosol includes an aerosol chamber configured to receive an aerosol, the particulate matter content of which should be analyzed, at least one ultrasonic generator configured to produce ultrasonic waves in the aerosol received in the aerosol chamber, an ultrasonic detector configured to detect ultrasonic waves produced by the at least one ultrasonic generator in the aerosol, and an evaluator having a data exchange communication link with the ultrasonic detector and configured to ascertain the matter content on the basis of signals output by the ultrasonic detector. The ultrasonic generator and the ultrasonic detector are positioned relative to one another such that a path length to be traversed by ultrasonic waves between the ultrasonic generator and the ultrasonic detector is less than 1 cm.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 29, 2020
    Inventors: Alfons DEHE, Christian BRETTHAUER
  • Patent number: 10766769
    Abstract: A semiconductor element includes a processed substrate arrangement including a processed semiconductor substrate and a metallization layer arrangement on a main surface of the processed semiconductor substrate. The semiconductor element further includes a passivation layer arranged at an outer border of the processed substrate arrangement.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: September 8, 2020
    Assignee: Infineon Technologies AG
    Inventors: Christian Bretthauer, Dirk Meinhold
  • Patent number: 10761005
    Abstract: An apparatus for analysing the particulate matter content of an aerosol includes an aerosol chamber configured to receive an aerosol, the particulate matter content of which should be analysed, at least one ultrasonic generator configured to produce ultrasonic waves in the aerosol received in the aerosol chamber, an ultrasonic detector configured to detect ultrasonic waves produced by the at least one ultrasonic generator in the aerosol, and an evaluator having a data exchange communication link with the ultrasonic detector and configured to ascertain the matter content on the basis of signals output by the ultrasonic detector. The ultrasonic generator and the ultrasonic detector are positioned relative to one another such that a path length to be traversed by ultrasonic waves between the ultrasonic generator and the ultrasonic detector is less than 1 cm.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: September 1, 2020
    Assignee: Infineon Technologies AG
    Inventors: Alfons Dehe, Christian Bretthauer
  • Publication number: 20200256833
    Abstract: A photoacoustic sensor comprises an emitter for emitting electromagnetic radiation at a first wavelength and electromagnetic radiation at a second wavelength, wherein the first wavelength is for photoacoustically detecting particulate matter in a measurement cavity and the second wavelength is for photoacoustically detecting the particulate matter and at least one target gas in the measurement cavity. The photoacoustic sensor further comprises an acoustic transducer for transducing a first acoustic signal into a first sensor signal depending on an interaction of the electromagnetic radiation at the first wavelength and the particulate matter, and for transducing a second acoustic signal into a second sensor signal depending on an interaction of the electromagnetic radiation at the second wavelength with the particulate matter and the at least one target gas.
    Type: Application
    Filed: December 6, 2019
    Publication date: August 13, 2020
    Inventor: Christian Bretthauer
  • Patent number: 10715926
    Abstract: A MEMS component includes a MEMS sound transducer having a membrane structure and an assigned counterelectrode structure, and a circuit unit, which is electrically coupled to the MEMS sound transducer and which in a first operating mode of the MEMS sound transducer in the audio frequency range detects an audio output signal of the MEMS sound transducer on the basis of a deflection of the membrane structure relative to the counterelectrode structure, the deflection being brought about by an acoustic sound pressure change, and in a second operating mode of the MEMS sound transducer in the ultrasonic frequency range to drive and read the MEMS sound transducer as an ultrasonic transceiver.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: July 14, 2020
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Christian Bretthauer, Pedro Augusto Borrego Lambin Torres Amaral, Christoph Glacer