Patents by Inventor Stefan Heckelmann

Stefan Heckelmann 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: 11594659
    Abstract: An optoelectronic component is specified comprising a semiconductor body comprising a first semiconductor layer sequence and a second semiconductor layer sequence which are arranged on top of one another in a stacking direction, wherein the first semiconductor layer sequence has a first active region, which generates electromagnetic primary radiation with a first peak wavelength the second semiconductor layer sequence comprises a second active region, which has a section configured to partially absorb electromagnetic primary radiation and to re-emit electromagnetic secondary radiation having a second peak wavelength, and the first peak wavelength is in a red wavelength range and the second peak wavelength is in an infrared wavelength range, or the first peak wavelength is smaller than the second peak wavelength by at most 100 nanometers.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: February 28, 2023
    Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Ivar TÃ¥ngring, Stefan Heckelmann
  • Patent number: 11374152
    Abstract: Provided is an optoelectronic semiconductor chip including a semiconductor layer sequence in which an active zone for generating radiation is located between a first semiconductor region and a second semiconductor region. A first electrical contact of the semiconductor layer sequence is applied to the first semiconductor region. A second electrical contact is applied to the second semiconductor region. The second electrical contact is located in a trench of the second semiconductor region. The trench is restricted to the second semiconductor region and ends at a distance from the active zone. A distance between a bottom of the trench and the active zone is at most 3 ?m.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: June 28, 2022
    Assignee: OSRAM OLED GMBH
    Inventors: Stefan Heckelmann, Andreas Rudolph, Alexander Tonkikh
  • Publication number: 20210391498
    Abstract: An optoelectronic component (1) is specified comprising a semiconductor body (2) comprising a first semiconductor layer sequence (3) and a second semiconductor layer sequence (7) which are arranged on top of one another in a stacking direction, wherein the first semiconductor layer sequence (3) has a first active region (4), which generates electromagnetic primary radiation (26) with a first peak wavelength the second semiconductor layer sequence (7) comprises a second active region (9), which has a section configured to partially absorb electromagnetic primary radiation (26) and to re-emit electromagnetic secondary radiation (27) having a second peak wavelength, and the first peak wavelength is in a red wavelength range and the second peak wavelength is in an infrared wavelength range, or the first peak wavelength is smaller than the second peak wavelength by at most 100 nanometers.
    Type: Application
    Filed: September 24, 2019
    Publication date: December 16, 2021
    Inventors: Ivar TÃ¥ngring, Stefan Heckelmann
  • Publication number: 20210167251
    Abstract: Provided is an optoelectronic semiconductor chip including a semiconductor layer sequence in which an active zone for generating radiation is located between a first semiconductor region and a second semiconductor region. A first electrical contact of the semiconductor layer sequence is applied to the first semiconductor region. A second electrical contact is applied to the second semiconductor region. The second electrical contact is located in a trench of the second semiconductor region. The trench is restricted to the second semiconductor region and ends at a distance from the active zone. A distance between a bottom of the trench and the active zone is at most 3 ?m.
    Type: Application
    Filed: May 3, 2019
    Publication date: June 3, 2021
    Inventors: Stefan Heckelmann, Andreas Rudolph, Alexander Tonkikh