Patents by Inventor Roland Zeisel

Roland Zeisel 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: 20180024185
    Abstract: A method and a device for inspecting an optoelectronic component are disclosed. In an embodiment, the method includes exciting at least one electromagnetic resonant circuit, formed by the at least one optoelectronic component and the connection board, such that the at least one optoelectronic component emits electromagnetic radiation, wherein exciting the electromagnetic resonant circuit comprises applying an electrical alternating voltage in the electromagnetic resonant circuit by generating a temporally variable electromagnetic alternating field by a first coil and a second coil, wherein the first coil and the second coil are movable with respect to the connection board.
    Type: Application
    Filed: January 14, 2016
    Publication date: January 25, 2018
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Robert Schulz, Anton Vogl, Roland Zeisel
  • Patent number: 9853018
    Abstract: An optoelectronic semiconductor chip includes a semiconductor layer sequence. The semiconductor layer sequence includes a first semiconductor region of a first conductivity type, a second semiconductor region of a second conductivity type, and an active zone having a p-n junction, which active zone is formed between the first semiconductor region and the second semiconductor region. The semiconductor layer sequence is arranged on a carrier. The semiconductor chip also includes a first contact, which is provided for electrically connecting the first semiconductor region, and a second contact, which is different from the first contact and which is provided for electrically connecting the second semiconductor region. In addition, the semiconductor chip includes a first capacitive electrical element, which is connected in parallel with the p-n junction and which has a first dielectric element.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: December 26, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Christian Leirer, Berthold Hahn, Roland Zeisel, Johannes Baur, Karl Engl
  • Publication number: 20160225749
    Abstract: An optoelectronic semiconductor chip includes a semiconductor layer sequence. The semiconductor layer sequence includes a first semiconductor region of a first conductivity type, a second semiconductor region of a second conductivity type, and an active zone having a p-n junction, which active zone is formed between the first semiconductor region and the second semiconductor region. The semiconductor layer sequence is arranged on a carrier. The semiconductor chip also includes a first contact, which is provided for electrically connecting the first semiconductor region, and a second contact, which is different from the first contact and which is provided for electrically connecting the second semiconductor region. In addition, the semiconductor chip includes a first capacitive electrical element, which is connected in parallel with the p-n junction and which has a first dielectric element.
    Type: Application
    Filed: September 10, 2014
    Publication date: August 4, 2016
    Inventors: Christian Leirer, Berthold Hahn, Roland Zeisel, Johannes Baur, Karl Engl
  • Publication number: 20160003890
    Abstract: A method can be used for measuring at least one optoelectronic component arranged on a connection carrier. The method includes exciting an electromagnetic oscillating circuit, which is formed by the optoelectronic component and the connection carrier, thus exciting the optoelectronic component in such a way that the optoelectronic component emits electromagnetic radiation, and measuring at least one electro-optical property of the optoelectronic component.
    Type: Application
    Filed: March 6, 2014
    Publication date: January 7, 2016
    Inventors: Robert Schulz, Anton Vogl, Raimund Oberschmid, Roland Zeisel, Michael Dietz
  • Patent number: 7741227
    Abstract: A process for structuring at least one layer as well as an electrical component with structures from the layer are described. The invention states a process to generate at least one structured layer (10A), wherein a mask structure (20) with a first (20A) and second structure (20B) is generated on a layer (10) which is present on a substrate (5). Through this mask structure (20), the first layer (20A) is transferred onto the layer (10) using isotropic structuring processes, and the second structure (20B) is transferred onto the layer (10) using anisotropic structuring processes. The process as per the invention permits the generation of two structures (20A, 20B) in at least a single layer while using a single mask structure.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: June 22, 2010
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Maja Hackenberger, Johannes Voelkl, Roland Zeisel
  • Publication number: 20080001162
    Abstract: The invention states a process to generate at least one structured layer (10A), wherein a mask structure (20) with a first (20A) and second structure (20B) is generated on a layer (10) which is present on a substrate (5). Through this mask structure (20), the first layer (20A) is transferred onto the layer (10) using isotropic structuring processes, and the second structure (20B) is transferred onto the layer (10) using anisotropic structuring processes. The process as per the invention permits the generation of two structures (20A, 20B) in at least a single layer while using a single mask structure.
    Type: Application
    Filed: April 21, 2005
    Publication date: January 3, 2008
    Inventors: Maja Hackenberger, Johannes Voelkl, Roland Zeisel
  • Publication number: 20050233484
    Abstract: A radiation-emitting semiconductor chip (1) having a semiconductor layer sequence (3) comprising at least one active layer (2) that generates an electromagnetic radiation, and having a passivation layer (12) arranged on the radiation-emerging side of the semiconductor layer sequence (3), it being possible to set the degree of transmission of the semiconductor chip by means of the passivation layer.
    Type: Application
    Filed: February 28, 2005
    Publication date: October 20, 2005
    Applicant: Osram Opto Semiconductors GmbH
    Inventors: Wilhelm Stein, Johannes Volkl, Robert Walter, Oliver Kus, Roland Zeisel