Patents by Inventor Simon FICHTNER

Simon FICHTNER 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: 20230395708
    Abstract: A transistor having high electron mobility (HEMT) having a first layer and a second layer is described. The first layer has a first material made of a first nitride compound. The first nitride compound has a group III element. The second layer has a second material made of a second nitride compound. The second nitride compound has a group III element. A main surface of the second layer is arranged opposite a main surface of the first layer, such that a charge zone forms along the main surface of the second layer. The HEMT further has a gate electrode, which is arranged opposite the second layer, at least in regions, such that the second layer is arranged between the first layer and the gate electrode. Furthermore, the HEMT has a third layer, which is arranged between the gate electrode and the second layer. The third layer has a ferroelectric third material made of a third nitride compound, or a ferroelectric third material made of an oxide compound which contains zinc.
    Type: Application
    Filed: August 24, 2023
    Publication date: December 7, 2023
    Inventors: Holger KAPELS, Simon FICHTNER, Fabian LOFINK, Bernhard WAGNER
  • Publication number: 20230395707
    Abstract: An electronic component comprises a first layer and a second layer, wherein a main surface of the first layer is arranged opposite a main surface of the second layer. The first layer comprises a polarized first material. A polarization of the first material faces in a first direction. The second layer comprises a polarized second material having at least one polarization state, wherein a direction of a polarization of the second material at least in the one polarization state of the second material is at least in part opposite to the first direction such that a charge zone forms along the main surface of the first and/or the second layer, said charge zone being electrically conductive at least when the second material is in the one polarization state.
    Type: Application
    Filed: August 24, 2023
    Publication date: December 7, 2023
    Inventors: Simon FICHTNER, Fabian LOFINK, Bernhard WAGNER, Holger KAPELS
  • Publication number: 20230354713
    Abstract: A ferroelectric material includes a mixed crystal having AlN and at least one nitride of a transition metal. The proportion of the nitride of the transition metal is selected such that a direction of an initial or spontaneous polarity of the ferroelectric material is switchable by applying a switchover voltage. The switchover voltage is below a breakdown voltage of the ferroelectric material.
    Type: Application
    Filed: July 11, 2023
    Publication date: November 2, 2023
    Inventors: Bernhard WAGNER, Fabian LOFINK, Dirk KADEN, Simon FICHTNER
  • Patent number: 11744158
    Abstract: A ferroelectric material includes a mixed crystal having AlN and at least one nitride of a transition metal. The proportion of the nitride of the transition metal is selected such that a direction of an initial or spontaneous polarity of the ferroelectric material is switchable by applying a switchover voltage. The switchover voltage is below a breakdown voltage of the ferroelectric material.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: August 29, 2023
    Assignees: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Christian-Albrechts-Universitaet zu Kiel
    Inventors: Bernhard Wagner, Fabian Lofink, Dirk Kaden, Simon Fichtner
  • Patent number: 11672127
    Abstract: Ferroelectric semiconductor device with a memory cell, with a ferroelectric memory layer and a first conductive layer disposed on the ferroelectric memory layer; and a semiconductor device connected to the memory cell. The ferroelectric memory layer of the memory cell can include a mixed crystal with a group III nitride and a non-group III element.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: June 6, 2023
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Bernhard Wagner, Simon Fichtner, Fabian Lofink
  • Publication number: 20210151445
    Abstract: Ferroelectric semiconductor device with a memory cell, with a ferroelectric memory layer and a first conductive layer disposed on the ferroelectric memory layer; and a semiconductor device connected to the memory cell. The ferroelectric memory layer of the memory cell can include a mixed crystal with a group III nitride and a non-group III element.
    Type: Application
    Filed: January 28, 2021
    Publication date: May 20, 2021
    Inventors: Bernhard Wagner, Simon Fichtner, Fabian Lofink
  • Publication number: 20200411747
    Abstract: A ferroelectric material includes a mixed crystal having AlN and at least one nitride of a transition metal. The proportion of the nitride of the transition metal is selected such that a direction of an initial or spontaneous polarity of the ferroelectric material is switchable by applying a switchover voltage. The switchover voltage is below a breakdown voltage of the ferroelectric material.
    Type: Application
    Filed: September 10, 2020
    Publication date: December 31, 2020
    Inventors: Bernhard WAGNER, Fabian LOFINK, Dirk KADEN, Simon FICHTNER