Patents by Inventor Ilona Skorupa

Ilona Skorupa 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: 11912969
    Abstract: A transparent specimen slide on which the range and the magnitude of the near-surface electrostatic forces can be influenced and set during a process of producing the specimen slide. The specimen slide has a surface on the supporting side and a surface facing away from the supporting side and at least three layers: an electrically insulating first layer, a silicon-containing second layer arranged on the first layer, and an electrically insulating third layer arranged on the second layer. An interface is formed between the first and second layers and between the second and third layers with a first surface charge density. The interface between the second and third layers has a second surface charge density. The first and second surface charge densities have the same or different signs.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: February 27, 2024
    Assignee: HELMHOLTZ-ZENTRUM DRESDEN—ROSSENDORF E.V.
    Inventors: Heidemarie Schmidt, Ilona Skorupa, Katarzyna Wiesenhütter, Lars Rebohle
  • Publication number: 20240013830
    Abstract: According to various aspects, a memristive structure is provided including: a first electrode, a second electrode, and a memristive element arranged between the first electrode and the second electrode; wherein the memristive element includes a memristive material that has a ferroelectric polarization capability, and wherein the memristive material has a crystalline microstructure configured to suppress a substantial ferroelectric switching of the memristive element in response to a voltage drop over the memristive element applied via the first electrode and the second electrode.
    Type: Application
    Filed: July 7, 2023
    Publication date: January 11, 2024
    Inventors: Heidemarie SCHMIDT, Nan DU, Ilona SKORUPA
  • Publication number: 20210305961
    Abstract: A method for reconfiguration of a vortex density in a rare earth manganate, to a non-volatile impedance switch having reconfigurable impedance, and to the use thereof as micro-inductance is disclosed. A unique voltage-time profile is applied between a first and a second electrically conductive contact attached to the rare earth manganate, such that the rare earth manganate passes through an ordering temperature in a region of an electric field forming between the two electrically conductive contacts during a cooling process during and after application of the voltage pulse or the voltage ramp, and the vortex density is thus influenced and adjusted locally in the region of the electric field forming between the two electrically conductive contacts.
    Type: Application
    Filed: May 7, 2019
    Publication date: September 30, 2021
    Inventors: Heidemarie SCHMIDT, Nan DU, Agnieszka BOGUSZ, Stephan KRÜGER, Ilona SKORUPA
  • Publication number: 20210024863
    Abstract: A transparent specimen slide on which the range and the magnitude of the near-surface electrostatic forces can be influenced and set during a process of producing the specimen slide. The specimen slide has a surface on the supporting side and a surface facing away from the supporting side and at least three layers: an electrically insulating first layer, a silicon-containing second layer arranged on the first layer, and an electrically insulating third layer arranged on the second layer. An interface is formed between the first and second layers and between the second and third layers with a first surface charge density. The interface between the second and third layers has a second surface charge density. The first and second surface charge densities have the same or different signs.
    Type: Application
    Filed: April 3, 2019
    Publication date: January 28, 2021
    Applicant: HELMHOLTZ-ZENTRUM DRESDEN - ROSSENDORF E.V.
    Inventors: Heidemarie SCHMIDT, Ilona SKORUPA, Katarzyna WIESENHÜTTER, Lars REBOHLE
  • Patent number: 10388370
    Abstract: An electronic memristive device that has a complementary analog reconfigurable memristive bidirectional resistive switch. The device has a memristive layer sequence having a BFTO/BFO/BFTO three-ply layer and two electrodes. Titanium traps are arranged in the BFTO interfaces. As a result of mobile acid vacancies, the potential barriers at the interfaces of the electrodes with respect to the memristive layer sequence are in flexible form. By applying voltage pulses, the acid vacancies can be shifted from the interface with respect to the first electrode to the interface with respect to the second electrode, with raising of the potential barrier at one electrode bringing about complementary lowering of the potential barrier of the other electrode. The method for operating the device proposes adapted writing processes that use the overlaying of writing pulse sequences to achieve stipulation of a state pair of complementary resistor states.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: August 20, 2019
    Assignee: Helmholtz-Zentrum Dresden—Rossendorf e.V.
    Inventors: Heidemarie Schmidt, Kefeng Li, Ilona Skorupa, Nan Du
  • Publication number: 20190122730
    Abstract: The invention relates to an electronic memristive device that has a complementary analogue reconfigurable memristive bidirectional resistive switch. The device has a memristive layer sequence having a BFTO/BFO/BFTO three-ply layer and two electrodes. Titanium traps are arranged in the BFTO interfaces. As a result of mobile acid vacancies, the potential barriers at the interfaces of the electrodes with respect to the memristive layer sequence are in flexible form. By applying voltage pulses, the acid vacancies can be shifted from the interface with respect to the first electrode to the interface with respect to the second electrode, with raising of the potential barrier at one electrode bringing about complementary lowering of the potential barrier of the other electrode. The method according to the invention for operating the device proposes adapted writing processes that use the overlaying of writing pulse sequences to achieve stipulation of a state pair of complementary resistor states.
    Type: Application
    Filed: April 3, 2017
    Publication date: April 25, 2019
    Inventors: Heidemarie Schmidt, Kefeng Li, Ilona Skorupa, Nan Du
  • Patent number: 10147824
    Abstract: A capacitance diode or variable capacitance diode includes first and second electrodes and a layer configuration disposed in contact-making fashion between the two electrodes. The layer configuration has, one after the other in a direction from the first electrode towards the second electrode, a layer formed of a ferroelectric material and an electrically insulating layer formed of a dielectric material having electrically charged defects. A method for producing a capacitance diode or a variable capacitance diode, a storage device and a detector including a capacitance diode or a variable capacitance diode are also provided.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: December 4, 2018
    Assignee: Helmholtz-Zentrum Dresden-Rossendorf e.V.
    Inventors: Heidemarie Schmidt, Ilona Skorupa, Slawomir Prucnal, Danilo Buerger, Agnieszka Bogusz, Laveen Selvaraj
  • Patent number: 10088443
    Abstract: Carriers for biomaterials, for polyelectrolyte materials, for electrically polarizable atoms, ions, molecules are provided wherein the material of the carriers is compatible with materials that are used in microelectronics. The arrangement of the biomaterials or biomolecules and optionally of biomolecules, biomaterials, biological functional units or cells adsorbed thereon can be affected with the carrier in a specific manner. Complex molecular machines can be built and tested by the carriers.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: October 2, 2018
    Assignees: HELMHOLTZ-ZENTRUM DRESDEN-ROSSENDORF E.V., LEIBNIZ-INSTITUT FÜR POLYMERFORSCHUNG DRESDEN E.V.
    Inventors: Heidemarie Schmidt, Christine Baumgart, Ilona Skorupa, Manfred Helm, Oliver G. Schmidt, Martin Müller
  • Patent number: 9812640
    Abstract: Disclosed is a complementary resistor switch (3) comprising two outer contacts, between which two piezo- or ferroelectric layers (11a and 11b) having an inner common contact are situated. At least one region (11?, 11?) of the layers is modified, either the outer contacts are rectifying (S) and the inner contact is non-rectifying (0), or vice versa, the modified regions are formed at the rectifying contacts, the layers have different strain-dependent structural phases with different band gaps and/or different polarization charges, and the electrical conductivity of the layers is different. Also disclosed are a connectable resistor structure having at least one Schottky contact at two adjoining piezo- or ferroelectric layers, a polycrystalline piezo- or ferroelectric layer comprising modified crystallites, and a method and circuits for encrypting and decrypting a bit sequence.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: November 7, 2017
    Assignee: Helmholtz-Zentrum Dresden-Rossendorf e.V
    Inventors: Tiangui You, Heidemarie Schmidt, Nan Du, Danilo Buerger, Ilona Skorupa, Niveditha Manjunath
  • Patent number: 9583704
    Abstract: Disclosed is a complementary resistor switch (3) comprising two outer contacts, between which two piezo- or ferroelectric layers (11a and 11b) having an inner common contact are situated. At least one region (11?, 11?) of the layers is modified, either the outer contacts are rectifying (S) and the inner contact is non-rectifying (O), or vice versa, the modified regions are formed at the rectifying contacts, the layers have different strain-dependent structural phases with different band gaps and/or different polarization charges, and the electrical conductivity of the layers is different. Also disclosed are a connectable resistor structure having at least one Schottky contact at two adjoining piezo- or ferroelectric layers, a polycrystalline piezo- or ferroelectric layer comprising modified crystallites, and a method and circuits for encrypting and decrypting a bit sequence.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: February 28, 2017
    Assignee: HELMHOLTZ-ZENTRUM DRESDEN-ROSSENDORF E.V.
    Inventors: Tiangui You, Heidemarie Schmidt, Nan Du, Danilo Buerger, Ilona Skorupa
  • Publication number: 20170025552
    Abstract: A capacitance diode or variable capacitance diode includes first and second electrodes and a layer configuration disposed in contact-making fashion between the two electrodes. The layer configuration has, one after the other in a direction from the first electrode towards the second electrode, a layer formed of a ferroelectric material and an electrically insulating layer formed of a dielectric material having electrically charged defects. A method for producing a capacitance diode or a variable capacitance diode, a storage device and a detector including a capacitance diode or a variable capacitance diode are also provided.
    Type: Application
    Filed: January 26, 2015
    Publication date: January 26, 2017
    Inventors: HEIDEMARIE SCHMIDT, ILONA SKORUPA, SLAWOMIR PRUCNAL, DANILO BUERGER, AGNIESZKA BOGUSZ, LAVEEN SELVARAJ
  • Patent number: 9520445
    Abstract: Various embodiments describe an integrated non-volatile component. The component may include a surface contact with associated mating contact wherein a ferroelectric layer is used as a conductive channel having variable conductivity and the surface contact and/or the associated mating contact are/is embodied as a rectifying contact and, as a result of an applied voltage between the surface contact and the associated mating contact, a non-volatile space charge zone forms in the surface contact terminal region and/or mating contact terminal region in the ferroelectric layer.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: December 13, 2016
    Assignee: HELMHOLTZ-ZENTRUM DRESDEN-ROSSENDORF E. V.
    Inventors: Heidemarie Schmidt, Yao Shuai, Shengqiang Zhou, Ilona Skorupa, Xin Ou, Nan Du, Christian Mayr, Wenbo Luo
  • Publication number: 20150364682
    Abstract: Disclosed is a complementary resistor switch (3) comprising two outer contacts, between which two piezo- or ferroelectric layers (11a and 11b) having an inner common contact are situated. At least one region (11?, 11?) of the layers is modified, either the outer contacts are rectifying (S) and the inner contact is non-rectifying (0), or vice versa, the modified regions are formed at the rectifying contacts, the layers have different strain-dependent structural phases with different band gaps and/or different polarization charges, and the electrical conductivity of the layers is different. Also disclosed are a connectable resistor structure having at least one Schottky contact at two adjoining piezo- or ferroelectric layers, a polycrystalline piezo- or ferroelectric layer comprising modified crystallites, and a method and circuits for encrypting and decrypting a bit sequence.
    Type: Application
    Filed: January 16, 2014
    Publication date: December 17, 2015
    Inventors: Tiangui YOU, Heidemarie SCHMIDT, Nan DU, Danilo BUERGER, Ilona SKORUPA
  • Publication number: 20150358151
    Abstract: Disclosed is a complementary resistor switch (3) comprising two outer contacts, between which two piezo- or ferroelectric layers (11a and 11b) having an inner common contact are situated. At least one region (11?, 11?) of the layers is modified, either the outer contacts are rectifying (S) and the inner contact is non-rectifying (0), or vice versa, the modified regions are formed at the rectifying contacts, the layers have different strain-dependent structural phases with different band gaps and/or different polarization charges, and the electrical conductivity of the layers is different. Also disclosed are a connectable resistor structure having at least one Schottky contact at two adjoining piezo- or ferroelectric layers, a polycrystalline piezo- or ferroelectric layer comprising modified crystallites, and a method and circuits for encrypting and decrypting a bit sequence.
    Type: Application
    Filed: July 16, 2015
    Publication date: December 10, 2015
    Inventors: Tiangui You, Heidemarie Schmidt, Nan Du, Danilo Buerger, Ilona Skorupa, Niveditha Manjunath
  • Publication number: 20140312400
    Abstract: Various embodiments describe an integrated non-volatile component. The component may include a surface contact with associated mating contact wherein a ferroelectric layer is used as a conductive channel having variable conductivity and the surface contact and/or the associated mating contact are/is embodied as a rectifying contact and, as a result of an applied voltage between the surface contact and the associated mating contact, a non-volatile space charge zone forms in the surface contact terminal region and/or mating contact terminal region in the ferroelectric layer.
    Type: Application
    Filed: July 12, 2012
    Publication date: October 23, 2014
    Applicant: HELMHOLTZ-ZENTRUM DRESDEN-ROSSENDORF E. V.
    Inventors: Heidemarie Schmidt, Yao Shuai, Shengqiang Zhou, Ilona Skorupa, Xin Ou, Nan Du, Christian Mayr, Wenbo Luo
  • Publication number: 20140291143
    Abstract: Carriers for biomaterials, for polyelectrolyte materials, for electrically polarizable atoms, ions, molecules are provided wherein the material of the carriers is compatible with materials that are used in microelectronics. The arrangement of the biomaterials or biomolecules and optionally of biomolecules, biomaterials, biological functional units or cells adsorbed thereon can be affected with the carrier in a specific manner. Complex molecular machines can be built and tested by the carriers.
    Type: Application
    Filed: August 31, 2012
    Publication date: October 2, 2014
    Inventors: Heidemarie Schmidt, Christine Baumgart, Ilona Skorupa, Manfred Helm, Oliver G. Schmidt, Martin Müller