Patents by Inventor Andreas STRAßER

Andreas STRAßER 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: 12399236
    Abstract: A magnetoresistive sensor includes a sensing element and a stress inducing layer. The sensing element has a layer stack that includes a reference layer having a fixed reference magnetization aligned with a magnetization axis; a magnetic free layer having a magnetically free magnetization, wherein the magnetically free magnetization is variable in a presence of an external magnetic field; and a non-magnetic layer arranged between the reference layer and the magnetic free layer. The stress inducing layer is coupled to the layer stack and is configured to apply a force to the layer stack to induce a mechanical stress in the layer stack along a mechanical stress axis such that the magnetization axis is aligned parallel with the mechanical stress axis or perpendicular with the mechanical stress axis.
    Type: Grant
    Filed: April 3, 2023
    Date of Patent: August 26, 2025
    Assignee: Infineon Technologies AG
    Inventors: Bernhard Endres, Jürgen Förster, Andreas Straßer
  • Publication number: 20250199095
    Abstract: The implementation proposes a magnetoresistive sensor, including at least one xMR sensor element formed from a layer stack, having a magnetically free layer having a magnetically free vortex magnetization, and having at least one reference layer having a reference magnetization in a predetermined direction. Magnetically free layers having a magnetically free vortex magnetization that are arranged along the predetermined direction on opposite sides of the xMR sensor element and laterally adjacent to the xMR sensor element. The adjacent magnetically free layers can act as magnetic flux concentrators for the magnetoresistive sensor element arranged therebetween.
    Type: Application
    Filed: December 9, 2024
    Publication date: June 19, 2025
    Inventors: Bernhard ENDRES, Wolfgang RABERG, Andreas STRAßER
  • Publication number: 20250189604
    Abstract: A sensor device contains a magnetic field sensor chip having a front face, a rear face and a side surface connecting the front face and the rear face. The magnetic field sensor chip has a sensor element which is arranged on the front face and is configured to detect a magnetic field component running parallel to the front face. The magnetic field sensor chip furthermore has multiple first contact pads arranged on the front face, wherein all of the first contact pads arranged on the front face are arranged at an edge of the magnetic field sensor chip lying between the front face and the side surface.
    Type: Application
    Filed: December 3, 2024
    Publication date: June 12, 2025
    Inventors: Patrick HANEKAMP, Andreas STRAßER, Horst THEUSS, Jürgen ZIMMER, Michael KIRSCH, Christian GEISSLER
  • Publication number: 20250147129
    Abstract: The present disclosure relates to a magnetoresistive sensor. The magnetoresistive sensor includes at least one sensor element having a layer stack. The layer stack includes a magnetically free layer with a magnetically free magnetization. A measurement sensitivity of the sensor element is temperature-dependent. The magnetoresistive sensor also includes a device which is configured to induce a temperature-dependent mechanical stress in the magnetically free layer. The temperature dependence of the measurement sensitivity can be at least partially compensated for by the temperature-dependent mechanical stress.
    Type: Application
    Filed: November 6, 2024
    Publication date: May 8, 2025
    Inventors: Bernhard ENDRES, Andreas STRAßER
  • Publication number: 20240329166
    Abstract: A magnetoresistive sensor includes a sensing element and a stress inducing layer. The sensing element has a layer stack that includes a reference layer having a fixed reference magnetization aligned with a magnetization axis; a magnetic free layer having a magnetically free magnetization, wherein the magnetically free magnetization is variable in a presence of an external magnetic field; and a non-magnetic layer arranged between the reference layer and the magnetic free layer. The stress inducing layer is coupled to the layer stack and is configured to apply a force to the layer stack to induce a mechanical stress in the layer stack along a mechanical stress axis such that the magnetization axis is aligned parallel with the mechanical stress axis or perpendicular with the mechanical stress axis.
    Type: Application
    Filed: April 3, 2023
    Publication date: October 3, 2024
    Inventors: Bernhard ENDRES, Jürgen FÖRSTER, Andreas STRAßER
  • Publication number: 20240310461
    Abstract: A magnetoresistive sensor includes at least one magnetoresistive element having a layer stack. The layer stack has at least one free layer that has a magnetization that is changeable in the layer plane and that varies depending on the field strength of an external magnetic field acting parallel to the layer plane. The magnetoresistive sensor furthermore has a shielding element that has a vortex magnetization with a closed flux in the layer plane, wherein the shielding element is configured, in the presence of the external magnetic field, to generate a linear magnetic stray field that is directed counter to the external magnetic field.
    Type: Application
    Filed: February 29, 2024
    Publication date: September 19, 2024
    Inventors: Bernhard ENDRES, Andreas STRAßER, Juergen ZIMMER
  • Publication number: 20230073687
    Abstract: A roof module for a motor vehicle, in particular for a passenger car, the roof module comprising a roof skin disposed on a roof substructure and a sensor system comprising at least one sensor module having at least one environment sensor for detecting the vehicle environment. The roof skin covers an air-conditioning mechanism having a thermal channel arrangement via which a cooling and/or heating fluid flows to the sensor module and/or an electrical feature of the roof module.
    Type: Application
    Filed: February 3, 2021
    Publication date: March 9, 2023
    Inventors: Thomas LINDNER, Andreas STRAßER, Michael HUELSEN