Patents by Inventor Helmut Bolay

Helmut Bolay 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: 7556974
    Abstract: An optical semiconductor device with a multiple quantum well structure, in which well layers and barrier layers comprising various types of semiconductor layers are alternately layered, in which device well layers (6a) of a first composition based on a nitride semiconductor material with a first electron energy and barrier layers (6b) of a second composition of a nitride semiconductor material with electron energy which is higher in comparison with the first electron energy are provided, followed, seen in the direction of growth, by a radiation-active quantum well layer (6c), for which the essentially non-radiating well layers (6a) and the barrier layers (6b) arranged in front form a superlattice.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: July 7, 2009
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Volker Harle, Berthold Hahn, Hans-Jurgen Lugauer, Helmut Bolay, Stefan Bader, Dominik Eisert, Uwe Strauss, Johannes Volkl, Ulrich Zehnder, Alfred Lell, Andreas Weimar
  • Publication number: 20060289854
    Abstract: An optical semiconductor device with a multiple quantum well structure, in which well layers and barrier layers comprising various types of semiconductor layers are alternately layered, in which device well layers (6a) of a first composition based on a nitride semiconductor material with a first electron energy and barrier layers (6b) of a second composition of a nitride semiconductor material with electron energy which is higher in comparison with the first electron energy are provided, followed, seen in the direction of growth, by a radiation-active quantum well layer (6c), for which the essentially non-radiating well layers (6a) and the barrier layers (6b) arranged in front form a superlattice.
    Type: Application
    Filed: August 10, 2006
    Publication date: December 28, 2006
    Inventors: Volker Harle, Berthold Hahn, Hans-Jurgen Lugauer, Helmut Bolay, Stefan Bader, Dominik Eisert, Uwe Strauss, Johannes Volkl, Ulrich Zehnder, Alfred Lell, Andreas Weimer
  • Patent number: 7106090
    Abstract: An optical semiconductor device with a multiple quantum well structure, in which well layers and barrier layers comprising various types of semiconductor layers are alternately layered, in which device well layers (6a) of a first composition based on a nitride semiconductor material with a first electron energy and barrier layers (6b) of a second composition of a nitride semiconductor material with electron energy which is higher in comparison with the first electron energy are provided, followed, seen in the direction of growth, by a radiation-active quantum well layer (6c), for which the essentially non-radiating well layers (6a) and the barrier layers (6b) arranged in front form a superlattice.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: September 12, 2006
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Volker Harle, Berthold Hahn, Hans-Jurgen Lugauer, Helmut Bolay, Stefan Bader, Dominik Eisert, Uwe Strauss, Johannes Volkl, Ulrich Zehnder, Alfred Lell, Andreas Weimer
  • Publication number: 20050116216
    Abstract: An optical semiconductor device with a multiple quantum well structure, in which well layers and barrier layers comprising various types of semiconductor layers are alternately layered, in which device well layers (6a) of a first composition based on a nitride semiconductor material with a first electron energy and barrier layers (6b) of a second composition of a nitride semiconductor material with electron energy which is higher in comparison with the first electron energy are provided, followed, seen in the direction of growth, by a radiation-active quantum well layer (6c), for which the essentially non-radiating well layers (6a) and the barrier layers (6b) arranged in front form a superlattice.
    Type: Application
    Filed: December 16, 2004
    Publication date: June 2, 2005
    Inventors: Volker Harle, Berthold Hahn, Hans-Jurgen Lugauer, Helmut Bolay, Stefan Bader, Dominik Eisert, Uwe Strauss, Johannes Volkl, Ulrich Zehnder, Alfred Lell, Andreas Weimer
  • Patent number: 6849881
    Abstract: An optical semiconductor device with a multiple quantum well structure, is set out in which well layers and barrier layers, comprising various types of semiconductor layers, are alternately layered. The device well layers comprise a first composition based on a nitride semiconductor material with a first electron energy. The barrier layers comprise a second composition of a nitride semiconductor material with electron energy which is higher in comparison to the first electron energy. The well and barrier layers are in the direction of growth, by a radiation-active quatum well layer which with the essentially non-radiating well layers (6a) and the barrier layers (6b), arranged in front, form a supperlattice.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: February 1, 2005
    Assignee: Osram GmbH
    Inventors: Volker Harle, Berthold Hahn, Hans-Jürgen Lugauer, Helmut Bolay, Stefan Bader, Dominik Eisert, Uwe Strauss, Johannes Völkl, Ulrich Zehnder, Alfred Lell, Andreas Weimer