Patents by Inventor Alexander Bähr

Alexander Bähr 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: 20220278233
    Abstract: The invention relates to a DEPFET comprising: a semiconductor substrate (100) of a first conduction type, which has a first main surface (101) and a second main surface (102), which are opposite one another; a source terminal region (1s) of a second conduction type on the first main surface (101); a drain terminal region (1d) of a second conduction type; a channel region (10), which is arranged between the source terminal region (1s) and the drain terminal region (1d); a gate electrode (11), which is separated from the channel region (10) by a gate insulator (6); a rear activation region (104) of a second conduction type, which is formed on the second main surface (102); and a substrate doping increase region (2) of a first conduction type, which is formed at least under the source terminal region (1s) and under the channel region (10), the substrate doping increase region (2) having a signal charge control region (20) of the first conduction type below the gate electrode (11), in which signal charge control
    Type: Application
    Filed: May 6, 2020
    Publication date: September 1, 2022
    Applicant: Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.
    Inventors: Alexander Bähr, Peter Lechner, Jelena Ninkovic, Rainer Richter, Florian Schopper, Johannes Treis
  • Publication number: 20220216245
    Abstract: An avalanche photodiode array for detecting electromagnetic radiation comprises: a semiconductor substrate (100) having a first main surface (101) and a second main surface (102), which are opposite one another, a plurality of n-doped anode regions (1) formed at the first main surface (101) and separated from one another by pixel isolation regions (7), a p-doped cathode region (3) arranged at the second main surface (102) opposite the anode regions, a drift region (4) between the plurality of anode regions (1) and the cathode region (3), and a p-doped multiplication layer (2) arranged below the plurality of anode regions (1) and below the pixel isolation regions (7), and is characterized by an n-doped field reduction layer (9) arranged below the plurality of anode regions (1) and the pixel isolation regions (7) and above the multiplication layer (2).
    Type: Application
    Filed: March 30, 2020
    Publication date: July 7, 2022
    Inventors: Rainer Richter, Florian Schopper, Jelena Ninkovic, Alexander Bähr
  • Patent number: 9812475
    Abstract: The invention concerns a detector arrangement for detection of radiation, in particular particle radiation or electromagnetic radiation, with a semi-conductor detector with several pixels for detection of the radiation. It is proposed that the individual pixels each have a first subpixel (1) and a second subpixel (2). The semi-conductor detector can be switched between a first collection state, in which the first subpixel (1) is sensitive and the second subpixel (2) is insensitive so that radiation-generated signal charge carriers are substantially collected only in the first subpixel (1), and a second collection state in which the second subpixel (2) is sensitive and the first subpixel (1) is insensitive so that the radiation-generated signal charge carriers are collected substantially only in the second subpixel (2). The invention furthermore concerns a corresponding operating method and detector arrangements based on the same concept with a higher number of subpixels per pixel.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: November 7, 2017
    Assignee: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
    Inventors: Alexander Baehr, Rainer Richter, Florian Schopper, Johannes Treis
  • Publication number: 20150325608
    Abstract: The invention concerns a detector arrangement for detection of radiation, in particular particle radiation or electromagnetic radiation, with a semi-conductor detector with several pixels for detection of the radiation. It is proposed that the individual pixels each have a first subpixel (1) and a second subpixel (2). The semi-conductor detector can be switched between a first collection state, in which the first subpixel (1) is sensitive and the second subpixel (2) is insensitive so that radiation-generated signal charge carriers are substantially collected only in the first subpixel (1), and a second collection state in which the second subpixel (2) is sensitive and the first subpixel (1) is insensitive so that the radiation-generated signal charge carriers are collected substantially only in the second subpixel (2). The invention furthermore concerns a corresponding operating method and detector arrangements based on the same concept with a higher number of subpixels per pixel.
    Type: Application
    Filed: May 7, 2015
    Publication date: November 12, 2015
    Inventors: Alexander BAEHR, Rainer RICHTER, Florian SCHOPPER, Johannes TREIS