Patents by Inventor Patrick Algotsson

Patrick Algotsson 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).

  • Method for producing vertical bipolar transistors and integrated circuit
    Patent number: 7495312
    Abstract: A method for producing vertical bipolar transistors having different voltage breakdown and high-frequency performance characteristics on a single die comprises forming, for each of the vertical bipolar transistors, a buried collector region, and base and emitter regions above the buried collector region. The lateral extensions and locations of the base and emitter regions and of the buried collector region are, for each of the vertical bipolar transistors, selected to create an overlap between the base and emitter regions, and the buried collector region, as seen from above, wherein at least some of the overlaps are selected to be different.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: February 24, 2009
    Assignee: Infineon Technologies AG
    Inventors: Patrick Algotsson, Hans Norström, Karin Andersson
  • Method for producing vertical bipolar transistors and integrated circuit
    Publication number: 20060076645
    Abstract: A method for producing vertical bipolar transistors having different voltage breakdown and high-frequency performance characteristics on a single die comprises forming, for each of the vertical bipolar transistors, a buried collector region, and base and emitter regions above the buried collector region. The lateral extensions and locations of the base and emitter regions and of the buried collector region are, for each of the vertical bipolar transistors, selected to create an overlap between the base and emitter regions, and the buried collector region, as seen from above, wherein at least some of the overlaps are selected to be different.
    Type: Application
    Filed: September 30, 2005
    Publication date: April 13, 2006
    Applicant: Infineon Technologies AG
    Inventors: Patrick Algotsson, Hans Norstroem, Karin Andersson