Patents by Inventor Nicola Schulz

Nicola Schulz 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: 8811442
    Abstract: The present invention relates to a semiconductor laser having at least one quantum film in which electron hole pairs can be recombined, having at least two barrier layers between which respectively one of the at least one quantum films is disposed adjacently to these, directly in a planar manner or via respectively one intermediate film, and also having a pump device, the barrier layers having or consisting of AlzGa1-zAsySb1-y, with y greater than or equal to zero and less than or equal to one and z less than or equal to one and greater than 0.4, and/or having or consisting of AlzGauInvAsySb1-y, with z+u+v=1 and z greater than 0.25, the electron hole pairs being able to be produced directly in the quantum film with the pump device.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: August 19, 2014
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Nicola Schulz, Marcel Rattunde, Joachim Wagner, Benno Rösener
  • Patent number: 8749051
    Abstract: A semiconductor device which provides a small and simple design with efficient cooling. A first electrically conducting cooling element is in contact with first electrodes of semiconductor elements for forwarding a heat load from the semiconductor elements and for electrically connecting the first electrodes of the semiconductor elements to an external apparatus. A second electrically conducting cooling element is in contact with second electrodes of the semiconductor elements for forwarding a heat load from the semiconductor elements and for electrically connecting the second electrodes of the semiconductor elements to an external apparatus. The semiconductor device includes an interface which is electrically connected to gates of the semiconductor elements for external control of respective states of the semiconductor elements.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: June 10, 2014
    Assignee: ABB Research Ltd
    Inventors: Slavo Kicin, Nicola Schulz, Munaf Rahimo, Raffael Schnell
  • Publication number: 20120211799
    Abstract: A power semiconductor module including a semiconductor device (e.g., an insulated gate bipolar transistor (IGBT), a reverse conductive (RC IGBT), or a bi-mode insulated gate transistor (BIGT)) with an emitter electrode and a collector electrode is provided. An electrically conductive upper layer is sintered to the emitter electrode. The upper layer is capable of forming an eutecticum with the semiconductor of the semiconductor device, and has a coefficient of thermal expansion which differs from the coefficient of thermal expansion of the semiconductor in a range of ?250%, for example ?50%. An electrically conductive base plate is sintered to the collector electrode. The semiconductor module includes an electrically conductive area which is electrically isolated from the base plate and connected to the upper layer via a direct electrical connection. The semiconductor module is easy to prepare, has an improved reliability and exhibits short circuit failure mode capacity.
    Type: Application
    Filed: February 17, 2012
    Publication date: August 23, 2012
    Applicant: ABB RESEARCH LTD
    Inventors: Chunlei LIU, Nicola SCHULZ, Slavo KICIN
  • Publication number: 20120199954
    Abstract: A semiconductor device which provides a small and simple design with efficient cooling. A first electrically conducting cooling element is in contact with first electrodes of semiconductor elements for forwarding a heat load from the semiconductor elements and for electrically connecting the first electrodes of the semiconductor elements to an external apparatus. A second electrically conducting cooling element is in contact with second electrodes of the semiconductor elements for forwarding a heat load from the semiconductor elements and for electrically connecting the second electrodes of the semiconductor elements to an external apparatus. The semiconductor device includes an interface which is electrically connected to gates of the semiconductor elements for external control of respective states of the semiconductor elements.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 9, 2012
    Applicant: ABB RESEARCH LTD
    Inventors: Slavo KICIN, Nicola Schulz, Munaf Rahimo, Raffael Schnell
  • Publication number: 20120199989
    Abstract: Exemplary embodiments of the disclosure are directed to a circuit arrangement in which a power functional device and a conductor element are mounted and a method of manufacturing the same. The arrangement includes a substrate, a wiring layer provided on the substrate and electrically connected to the functional device and to the conductor element and an intermediate electric contact device. The intermediate electric contact device is mounted on the wiring layer to provide on the side opposite to the wiring layer a contact region for contacting the conductor element. The conductor element is contacting the intermediate electric contact device in the contact region which is opposite to an area, in which the electric contact device is fixed to the wiring layer.
    Type: Application
    Filed: March 27, 2012
    Publication date: August 9, 2012
    Applicant: ABB Technology AG
    Inventors: Nicola Schulz, Samuel Hartmann
  • Publication number: 20110013658
    Abstract: The present invention relates to a semiconductor laser having at least one quantum film in which electron hole pairs can be recombined, having at least two barrier layers between which respectively one of the at least one quantum films is disposed adjacently to these, directly in a planar manner or via respectively one intermediate film, and also having a pump device, the barrier layers having or consisting of AlzGa1-zAsySbi-y, with y greater than or equal to zero and less than or equal to one and z less than or equal to one and greater than 0.4, and/or having or consisting of AlzGauInvAsySb1-y, with z+u+v=1 and z greater than 0.25, the electron hole pairs being able to be produced directly in the quantum film with the pump device.
    Type: Application
    Filed: August 13, 2010
    Publication date: January 20, 2011
    Inventors: Nicola Schulz, Marcel Rattunde, Joachim Wagner, Benno Rösener