Patents by Inventor Sten Seifert

Sten Seifert 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).

  • Semiconductor photodiode
    Patent number: 10134937
    Abstract: A semiconductor photodiode, including a light-absorbing layer; an optical waveguide via which light can evanescently be coupled into the light-absorbing layer, and a doped contact layer arranged between the light-absorbing layer and the optical waveguide. The optical waveguide at least sectionally has a doping which produces a diffusion barrier counteracting a diffusion of dopant of the contact layer into the optical waveguide.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: November 20, 2018
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Patrick Runge, Tobias Beckerwerth, Sten Seifert
  • Semiconductor Photodiode
    Publication number: 20180175231
    Abstract: A semiconductor photodiode, including a light-absorbing layer; an optical waveguide via which light can evanescently be coupled into the light-absorbing layer, and a doped contact layer arranged between the light-absorbing layer and the optical waveguide. The optical waveguide at least sectionally has a doping which produces a diffusion barrier counteracting a diffusion of dopant of the contact layer into the optical waveguide.
    Type: Application
    Filed: June 3, 2016
    Publication date: June 21, 2018
    Inventors: Patrick Runge, Tobias Beckerwerth, Sten Seifert