Patents by Inventor Christopher A. Schaake

Christopher A. Schaake 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).

  • Minority carrier based HgCdTe infrared detectors and arrays
    Patent number: 9673347
    Abstract: Disclosed are minority carrier based mercury-cadmium telluride (HgCdTe) infrared detectors and arrays, and methods of making, are disclosed. The constructions provided by the invention enable the detectors to be used at higher temperatures, and/or be implemented on less expensive semiconductor substrates to lower manufacturing costs. An exemplary embodiment a substrate, a bottom contact layer disposed on the substrate, a first mercury-cadmium telluride layer having a first bandgap energy value disposed on the bottom contact layer, a second mercury-cadmium telluride layer having a second bandgap energy value that is greater than the first bandgap energy value disposed on the first mercury-cadmium telluride layer, and a collector layer disposed on the second mercury-cadmium telluride layer, wherein the first and second mercury-cadmium telluride layers are each doped with an n-type dopant.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: June 6, 2017
    Assignee: DRS Network & Imaging Systems, LLC
    Inventors: Michael A. Kinch, Christopher A. Schaake
  • MINORITY CARRIER BASED HGCDTE INFRARED DETECTORS AND ARRAYS
    Publication number: 20150318418
    Abstract: Disclosed are minority carrier based mercury-cadmium telluride (HgCdTe) infrared detectors and arrays, and methods of making, are disclosed. The constructions provided by the invention enable the detectors to be used at higher temperatures, and/or be implemented on less expensive semiconductor substrates to lower manufacturing costs. An exemplary embodiment a substrate, a bottom contact layer disposed on the substrate, a first mercury-cadmium telluride layer having a first bandgap energy value disposed on the bottom contact layer, a second mercury-cadmium telluride layer having a second bandgap energy value that is greater than the first bandgap energy value disposed on the first mercury-cadmium telluride layer, and a collector layer disposed on the second mercury-cadmium telluride layer, wherein the first and second mercury-cadmium telluride layers are each doped with an n-type dopant.
    Type: Application
    Filed: July 16, 2015
    Publication date: November 5, 2015
    Inventors: Michael A. Kinch, Christopher A. Schaake
  • Minority carrier based HgCdTe infrared detectors and arrays
    Patent number: 9112098
    Abstract: Disclosed are minority carrier based mercury-cadmium telluride (HgCdTe) infrared detectors and arrays, and methods of making, are disclosed. The constructions provided by the invention enable the detectors to be used at higher temperatures, and/or be implemented on less expensive semiconductor substrates to lower manufacturing costs. An exemplary embodiment a substrate, a bottom contact layer disposed on the substrate, a first mercury-cadmium telluride layer having a first bandgap energy value disposed on the bottom contact layer, a second mercury-cadmium telluride layer having a second bandgap energy value that is greater than the first bandgap energy value disposed on the first mercury-cadmium telluride layer, and a collector layer disposed on the second mercury-cadmium telluride layer, wherein the first and second mercury-cadmium telluride layers are each doped with an n-type dopant.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: August 18, 2015
    Assignee: DRS Network & Imaging Systems, LLC
    Inventors: Michael A. Kinch, Christopher A. Schaake
  • MINORITY CARRIER BASED HGCDTE INFRARED DETECTORS AND ARRAYS
    Publication number: 20140147962
    Abstract: Disclosed are minority carrier based mercury-cadmium telluride (HgCdTe) infrared detectors and arrays, and methods of making, are disclosed. The constructions provided by the invention enable the detectors to be used at higher temperatures, and/or be implemented on less expensive semiconductor substrates to lower manufacturing costs. An exemplary embodiment a substrate, a bottom contact layer disposed on the substrate, a first mercury-cadmium telluride layer having a first bandgap energy value disposed on the bottom contact layer, a second mercury-cadmium telluride layer having a second bandgap energy value that is greater than the first bandgap energy value disposed on the first mercury-cadmium telluride layer, and a collector layer disposed on the second mercury-cadmium telluride layer, wherein the first and second mercury-cadmium telluride layers are each doped with an n-type dopant.
    Type: Application
    Filed: January 29, 2014
    Publication date: May 29, 2014
    Applicant: DRS RSTA, INC.
    Inventors: Michael A. Kinch, Christopher A. Schaake
  • Minority carrier based HgCdTe infrared detectors and arrays
    Patent number: 8686471
    Abstract: Disclosed are minority carrier based mercury-cadmium telluride (HgCdTe) infrared detectors and arrays, and methods of making, are disclosed. The constructions provided by the invention enable the detectors to be used at higher temperatures, and/or be implemented on less expensive semiconductor substrates to lower manufacturing costs. An exemplary embodiment a substrate, a bottom contact layer disposed on the substrate, a first mercury-cadmium telluride layer having a first bandgap energy value disposed on the bottom contact layer, a second mercury-cadmium telluride layer having a second bandgap energy value that is greater than the first bandgap energy value disposed on the first mercury-cadmium telluride layer, and a collector layer disposed on the second mercury-cadmium telluride layer, wherein the first and second mercury-cadmium telluride layers are each doped with an n-type dopant.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: April 1, 2014
    Assignee: DRS RSTA, Inc.
    Inventors: Michael A. Kinch, Christopher A. Schaake
  • MINORITY CARRIER BASED HgCdTe INFRARED DETECTORS AND ARRAYS
    Publication number: 20120273838
    Abstract: Disclosed are minority carrier based mercury-cadmium telluride (HgCdTe) infrared detectors and arrays, and methods of making, are disclosed. The constructions provided by the invention enable the detectors to be used at higher temperatures, and/or be implemented on less expensive semiconductor substrates to lower manufacturing costs. An exemplary embodiment a substrate, a bottom contact layer disposed on the substrate, a first mercury-cadmium telluride layer having a first bandgap energy value disposed on the bottom contact layer, a second mercury-cadmium telluride layer having a second bandgap energy value that is greater than the first bandgap energy value disposed on the first mercury-cadmium telluride layer, and a collector layer disposed on the second mercury-cadmium telluride layer, wherein the first and second mercury-cadmium telluride layers are each doped with an n-type dopant.
    Type: Application
    Filed: December 14, 2011
    Publication date: November 1, 2012
    Inventors: Michael A. Kinch, Christopher A. Schaake