Patents Assigned to Cincinnati Electronics Corporation
  • Patent number: 10978508
    Abstract: A direct bonding method for infrared focal plane arrays, includes steps of depositing a thin adhesion layer on infrared radiation detecting material, removing a portion of the thin adhesion layer with a chemical-mechanical polishing process, forming a bonding layer at a bonding interface, and bonding the infrared radiation detecting material to a silicon wafer with the thin adhesion layer as a bonding layer. The thin adhesion layer may include SiOx, where x ranges between 1.0 and 2.0. The thickness of the thin adhesion layer to form the bonding layer is 500 angstrom or less.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: April 13, 2021
    Assignee: L3 CINCINNATI ELECTRONICS CORPORATION
    Inventors: Steven Allen, Michael Garter, Robert Jones, Joseph Meiners, Yajun Wei, Darrel Endres
  • Publication number: 20210082991
    Abstract: Multicolor, stacked detector devices, focal plane arrays including multicolor, stacked detector devices, and methods of fabricating the same are disclosed. In one embodiment, a stacked multicolor detector device includes a first detector and a second detector. The first detector includes a first detector structure and a first ground plane adjacent the first detector structure. The second detector includes a second detector structure and a second ground plane adjacent the second detector structure. At least one of the first ground plane and the second ground plane is transmissive to radiation in a predetermined spectral band. The first detector and the second detector are in a stacked relationship.
    Type: Application
    Filed: September 11, 2020
    Publication date: March 18, 2021
    Applicant: L3 CINCINNATI ELECTRONICS CORPORATION
    Inventors: Daniel Chmielewski, Yajun Wei, Nansheng Tang, Darrel Endres, Michael Garter, Mark Greiner
  • Publication number: 20210082992
    Abstract: Methods of fabricating multicolor, stacked detector devices and focal plane arrays are disclosed. In one embodiment, a method of fabricating a stacked multicolor device includes forming a first detector by depositing a first detector structure on a first detector substrate, and depositing a first ground plane on the first detector structure, wherein the first ground plane is transmissive to radiation in a predetermined spectral band. The method further includes bonding an optical carrier wafer to the first ground plane, removing the first detector substrate, and forming a second detector. The second detector is formed by depositing a second detector structure on a second detector substrate, and depositing a second ground plane on the second detector structure. The method further includes depositing a dielectric layer on one of the first detector structure and the second ground plane, bonding the first detector to the second detector, and removing the second detector substrate.
    Type: Application
    Filed: September 11, 2020
    Publication date: March 18, 2021
    Applicant: L3 CINCINNATI ELECTRONICS CORPORATION
    Inventors: Yajun Wei, Daniel Chmielewski, Nansheng Tang, Darrel Endres, Michael Garter, Mark Greiner
  • Patent number: 10886325
    Abstract: Focal plane arrays and infrared detector device having a transparent common ground structure and methods of their fabrication are disclosed. In one embodiment, a front-side illuminated infrared detector device includes a contact layer and a detector structure adjacent to the contact layer. The detector structure is capable of absorbing radiation. The front-side illuminated infrared detector device further includes a common ground structure adjacent the detector structure, wherein the common ground structure is transmissive to radiation having a wavelength in a predetermined spectral band, and the common ground structure has a bandgap that is wider than a bandgap of the detector structure. The front-side illuminated infrared detector device further includes an optical layer adjacent the common ground structure.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: January 5, 2021
    Assignee: L3 CINCINNATI ELECTRONICS CORPORATION
    Inventors: Yajun Wei, Steven Allen, Michael Garter, Mark Greiner, David Forrai, Darrel Endres, Robert Jones
  • Patent number: 10754366
    Abstract: Embodiments described herein are directed to power switching circuits having a saturable inductor. In one embodiment, a power switching circuit includes a power switch assembly operable to be connected to a power source. The power switch assembly includes a plurality of parallel power switches connected to and receiving current from the power source and a saturable inductor electrically coupled in series with the plurality of parallel power switches.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: August 25, 2020
    Assignee: L3 Cincinnati Electronics Corporation
    Inventor: Justin Graves
  • Patent number: 10714531
    Abstract: Focal plane arrays and infrared detector device having a transparent common ground structure and methods of their fabrication are disclosed. In one embodiment, a front-side illuminated infrared detector device includes a contact layer and a detector structure adjacent to the contact layer. The detector structure is capable of absorbing radiation. The front-side illuminated infrared detector device further includes a common ground structure adjacent the detector structure, wherein the common ground structure is transmissive to radiation having a wavelength in a predetermined spectral band, and the common ground structure has a bandgap that is wider than a bandgap of the detector structure. The front-side illuminated infrared detector device further includes an optical layer adjacent the common ground structure.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: July 14, 2020
    Assignee: L3 Cincinnati Electronics Corporation
    Inventors: Yajun Wei, Steven Allen, Michael Garter, Mark Greiner, David Forrai, Darrel Endres
  • Patent number: 10681289
    Abstract: Embodiments disclosed herein relate to a ROIC with a plurality of unit cells coupled to a detector array having a plurality of detectors for collecting photoelectrons over a plurality of temporal instances. An individual unit cell is electrically coupled to an individual detector to have one-to-one correspondence and includes one or more storage elements coupled to one or more programmable logic control switches. The storage element(s) store signal charges representing the photoelectrons while the programmable logic control switch(es) direct the signal charges from the storage element(s) at an individual temporal instance. A configuration of signal charges in the plurality of unit cells is mathematically operated as a three-dimensional matrix having a plurality of elements, where the three dimensions correspond to the two spatial dimensions of an individual unit cell and the individual temporal instance, and an individual element has a value corresponding to the number of signal charges stored therein.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: June 9, 2020
    Assignee: L3 CINCINNATI ELECTRONICS CORPORATION
    Inventors: Nansheng Tang, George Buritica, Doug Droege, Dave Forrai, John Forsthoefel, Mike Spicer, Al Timlin, Stefan Lauxtermann, Edward S. Brinkman
  • Patent number: 10644603
    Abstract: Embodiments described herein are directed to an energy-harvesting circuit configured to harvest energy from a power converter circuit within a switch mode power supply and generate a positive, a negative or a bipolar power supply rail to power load circuitry. The energy-harvesting circuit includes a transformer, a coupling capacitor, a diode and a capacitor. The transformer has a primary winding, a secondary winding and a magnetic core shared therebetween. The primary winding is electrically connected between a drain and a source of a transistor switch connected to the power converter circuit. The coupling capacitor is electrically connected between the drain and the primary winding and configured to provide a reset mechanism for the magnetic core. The anode of the diode is electrically connected to the secondary winding. The capacitor is electrically connected in series with the cathode of the diode and in parallel with the load circuitry.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: May 5, 2020
    Assignee: L3 CINCINNATI ELECTRONICS CORPORATION
    Inventor: Justin Graves
  • Publication number: 20190377376
    Abstract: Embodiments described herein are directed to power switching circuits having a saturable inductor. In one embodiment, a power switching circuit includes a power switch assembly operable to be connected to a power source. The power switch assembly includes a plurality of parallel power switches connected to and receiving current from the power source and a saturable inductor electrically coupled in series with the plurality of parallel power switches.
    Type: Application
    Filed: October 12, 2018
    Publication date: December 12, 2019
    Applicant: L3 Cincinnati Electronics Corporation
    Inventor: Justin Graves
  • Publication number: 20190335117
    Abstract: Embodiments disclosed herein relate to a ROIC with a plurality of unit cells coupled to a detector array having a plurality of detectors for collecting photoelectrons over a plurality of temporal instances. An individual unit cell is electrically coupled to an individual detector to have one-to-one correspondence and includes one or more storage elements coupled to one or more programmable logic control switches. The storage element(s) store signal charges representing the photoelectrons while the programmable logic control switch(es) direct the signal charges from the storage element(s) at an individual temporal instance. A configuration of signal charges in the plurality of unit cells is mathematically operated as a three-dimensional matrix having a plurality of elements, where the three dimensions correspond to the two spatial dimensions of an individual unit cell and the individual temporal instance, and an individual element has a value corresponding to the number of signal charges stored therein.
    Type: Application
    Filed: April 25, 2019
    Publication date: October 31, 2019
    Applicant: L3 Cincinnati Electronics Corporation
    Inventors: Nansheng Tang, George Buritica, Doug Droege, Dave Forrai, John Forsthoefel, Mike Spicer, Al Timlin, Stefan Lauxtermann, Edward S. Brinkman
  • Publication number: 20190296649
    Abstract: Embodiments described herein are directed to an energy-harvesting circuit configured to harvest energy from a power converter circuit within a switch mode power supply and generate a positive, a negative or a bipolar power supply rail to power load circuitry. The energy-harvesting circuit includes a transformer, a coupling capacitor, a diode and a capacitor. The transformer has a primary winding, a secondary winding and a magnetic core shared therebetween. The primary winding is electrically connected between a drain and a source of a transistor switch connected to the power converter circuit. The coupling capacitor is electrically connected between the drain and the primary winding and configured to provide a reset mechanism for the magnetic core. The anode of the diode is electrically connected to the secondary winding. The capacitor is electrically connected in series with the cathode of the diode and in parallel with the load circuitry.
    Type: Application
    Filed: November 20, 2018
    Publication date: September 26, 2019
    Applicant: L3 Cincinnati Electronics Corporation
    Inventor: Justin Graves
  • Patent number: 10416470
    Abstract: Systems and methods for characterizing an obscurant and imaging a target are disclosed. In one embodiment, a method of imaging a target includes characterizing at least one obscurant present in an environment, and determining, based on the at least one characterized obscurant, one or more of the following: one or more wavelengths corresponding to the at least one obscurant, a polarization state corresponding to the at least one obscurant, and a sensor exposure time corresponding to the at least one obscurant. The method further includes adjusting one or more parameters of an imagining system based at least in part on a characterization of the at least one obscurant.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: September 17, 2019
    Assignee: L3 CINCINNATI ELECTRONICS CORPORATION
    Inventors: Harish P. Hiriyannaiah, Nansheng Tang
  • Patent number: 10236777
    Abstract: Magnetically isolated feedback circuits and regulated power supplies are disclosed. In some embodiments, a magnetically isolated feedback circuit includes an isolated gate drive circuit and a forward converter circuit. The isolated gate drive circuit is operable to receive a plurality of pulses, wherein the isolated gate drive circuit produces a plurality of isolated bi-polar pulses from the plurality of pulses. The forward converter circuit is electrically coupled to the isolated gate drive circuit and is operable to be electrically coupled to a load. The plurality of isolated bi-polar pulses causes the forward converter circuit to sample a voltage at the load as a sampled voltage. The forward converter circuit is operable to provide the sampled voltage to a feedback input of a pulse width modulator.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: March 19, 2019
    Assignee: L3 CINCINNATI ELECTRONICS CORPORATION
    Inventor: Justin Graves
  • Publication number: 20190052164
    Abstract: Magnetically isolated feedback circuits and regulated power supplies are disclosed. In some embodiments, a magnetically isolated feedback circuit includes an isolated gate drive circuit and a forward converter circuit. The isolated gate drive circuit is operable to receive a plurality of pulses, wherein the isolated gate drive circuit produces a plurality of isolated bi-polar pulses from the plurality of pulses. The forward converter circuit is electrically coupled to the isolated gate drive circuit and is operable to be electrically coupled to a load. The plurality of isolated bi-polar pulses causes the forward converter circuit to sample a voltage at the load as a sampled voltage. The forward converter circuit is operable to provide the sampled voltage to a feedback input of a pulse width modulator.
    Type: Application
    Filed: January 22, 2018
    Publication date: February 14, 2019
    Applicant: L3 Cincinnati Electronics Corporation
    Inventor: Justin Graves
  • Patent number: 10170653
    Abstract: Embodiments of the present disclosure are directed to infrared detector devices incorporating a tunneling structure. In one embodiment, an infrared detector device includes a first contact layer, an absorber layer adjacent to the first contact layer, and a tunneling structure including a barrier layer adjacent to the absorber layer and a second contact layer adjacent to the barrier layer. The barrier layer has a tailored valence band offset such that a valence band offset of the barrier layer at the interface between the absorber layer and the barrier layer is substantially aligned with the valence band offset of the absorber layer, and the valence band offset of the barrier layer at the interface between the barrier layer and the second contact layer is above a conduction band offset of the second contact layer.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: January 1, 2019
    Assignee: L3 CINCINNATI ELECTRONICS CORPORATION
    Inventor: Yajun Wei
  • Publication number: 20180372548
    Abstract: Satellite onboard imaging systems having a look-down view and a toroidal view of the Earth are disclosed. In one embodiment, a satellite onboard imaging systems include an infrared sensing system and a controller. The infrared sensing system includes a first imager configured to have a first field of view that observes a look-down view of the Earth from a satellite and a second imager configured to have a second field of view that observes a toroidal view of the Earth centered at the satellite. The controller is coupled to the first imager and the second imager and operable to process image data from the first imager and the second imager. The controller is further operable to output indications of thermal energy of an identical, or different objects based on the first thermal image signal, the second thermal image signal, or both.
    Type: Application
    Filed: June 26, 2018
    Publication date: December 27, 2018
    Applicant: L3 Cincinnati Electronics Corporation
    Inventors: Gregory GOSIAN, Dave HARTUP
  • Patent number: 10153682
    Abstract: Self-centering electromagnetic transducers, such as linear motors and generators, are disclosed. In one embodiment, an electromagnetic transducer includes an outer yoke made of a ferromagnetic material, and a coil assembly including a plurality of loops of electrically conductive wire, wherein the coil assembly is substantially surrounded by the outer yoke. The electromagnetic transducer further includes a magnet, and an inner yoke made of ferromagnetic material. The magnet is disposed within the outer yoke such that the coil assembly surrounds the magnet. The inner yoke is disposed within the magnet, and the magnet is free to translate. The electromagnetic transducer further includes at least one high-reluctance zone positioned within the outer yoke and/or the inner yoke. In some embodiments, the electromagnetic transducer includes one or more actuators that vary a width of one or more high-reluctance zones to change a spring rate of the electromagnetic transducer.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: December 11, 2018
    Assignee: L3 Cincinnati Electronics Corporation
    Inventor: Andreas Fiedler
  • Patent number: 10121922
    Abstract: Embodiments of the present disclosure are directed to infrared detector devices incorporating a tunneling structure. In one embodiment, an infrared detector device includes a first contact layer, an absorber layer adjacent to the first contact layer, and a tunneling structure including a barrier layer adjacent to the absorber layer and a second contact layer adjacent to the barrier layer. The barrier layer has a tailored valence band offset such that a valence band offset of the barrier layer at the interface between the absorber layer and the barrier layer is substantially aligned with the valence band offset of the absorber layer, and the valence band offset of the barrier layer at the interface between the barrier layer and the second contact layer is above a conduction band offset of the second contact layer.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: November 6, 2018
    Assignee: L3 CINCINNATI ELECTRONICS CORPORATION
    Inventor: Yajun Wei
  • Patent number: 10121921
    Abstract: Embodiments of the present disclosure are directed to infrared detector devices incorporating a tunneling structure. In one embodiment, an infrared detector device includes a first contact layer, an absorber layer adjacent to the first contact layer, and a tunneling structure including a barrier layer adjacent to the absorber layer and a second contact layer adjacent to the barrier layer. The barrier layer has a tailored valence band offset such that a valence band offset of the barrier layer at the interface between the absorber layer and the barrier layer is substantially aligned with the valence band offset of the absorber layer, and the valence band offset of the barrier layer at the interface between the barrier layer and the second contact layer is above a conduction band offset of the second contact layer.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: November 6, 2018
    Assignee: L3 CINCINNATI ELECTRONICS CORPORATION
    Inventor: Yajun Wei
  • Publication number: 20180294301
    Abstract: Focal plane arrays and infrared detector device having a transparent common ground structure and methods of their fabrication are disclosed. In one embodiment, a front-side illuminated infrared detector device includes a contact layer and a detector structure adjacent to the contact layer. The detector structure is capable of absorbing radiation. The front-side illuminated infrared detector device further includes a common ground structure adjacent the detector structure, wherein the common ground structure is transmissive to radiation having a wavelength is a predetermined spectral band, and the common ground structure has a bandgap that is wider than a bandgap of the detector structure. The front-side illuminated infrared detector device further includes an optical layer adjacent the common ground structure.
    Type: Application
    Filed: May 4, 2018
    Publication date: October 11, 2018
    Applicant: L3 Cincinnati Electronics Corporation
    Inventors: Yajun Wei, Steven Allen, Michael Garter, Mark Greiner, David Forrai, Darrel Endres, Robert Jones