Patents by Inventor John Carlton Jackson

John Carlton Jackson 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).

  • Patent number: 10302778
    Abstract: A semiconductor photomultiplier (SPM) device is described. The SPM comprises a plurality of photosensitive elements, a first electrode arranged to provide a bias voltage to the photosensitive elements, a second electrode arranged as a biasing electrode for the photosensitive elements, a plurality of quench resistive elements each associated with a corresponding photosensitive element, a plurality of output loads; a first node of each output load is common to one of the photosensitive elements and the corresponding quench element; and a third electrode provides an output signal from the photosensitive elements; the third electrode is coupled to a second node of the respective output loads; the outputs loads fully or partially correct an overshoot of the output signal on the third electrode.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: May 28, 2019
    Assignee: SENSL TECHNOLOGIES LTD.
    Inventors: Kevin O'Neill, Liam Wall, John Carlton Jackson
  • Patent number: 10290760
    Abstract: In one form, a process of manufacturing an avalanche photodiode includes forming an insulating layer over an active region of a semiconductor substrate. A shallow terminal of the avalanche photodiode is defined using a first patterned mask. A first dopant is implanted through the first patterned mask and the insulating layer to form the shallow terminal. The first patterned mask is removed. A deep terminal of the avalanche photodiode is defined using second patterned mask. A second dopant is implanted through the second patterned mask and insulating layer to form the deep terminal of the avalanche photodiode. A respective terminal of at least one of the shallow terminal and the deep terminal is defined using a respective patterned mask that forms at least two regions that are spatially separated from each other with no implanted structure located in a space therebetween.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: May 14, 2019
    Assignee: SensL Technologies Ltd.
    Inventors: Kevin Michael O'Neill, John Carlton Jackson, Liam Wall
  • Patent number: 10276610
    Abstract: The present disclosure relates to a semiconductor photomultiplier comprising a substrate; an array of photosensitive cells formed on the substrate that are operably coupled between an anode and a cathode. A set of primary bus lines are provided each being associated with a corresponding set of photosensitive cells. A secondary bus line is coupled to the set of primary bus lines. An electrical conductor is provided having a plurality of connection sites coupled to respective connection locations on the secondary bus line for providing conduction paths which have lower impedance than the secondary bus line.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: April 30, 2019
    Assignee: SensL Technologies Ltd.
    Inventors: Brian McGarvey, Stephen John Bellis, John Carlton Jackson
  • Publication number: 20190067495
    Abstract: The present disclosure relates to a semiconductor photomultiplier comprising an array of interconnected microcells; wherein the array comprises at least a first type of microcell having a first junction region of a first geometric shape; and a second type of microcell having a second junction region of a second geometric shape.
    Type: Application
    Filed: August 29, 2017
    Publication date: February 28, 2019
    Applicant: SensL Technologies Ltd.
    Inventors: Paul Malachy Daly, John Carlton Jackson
  • Patent number: 10205033
    Abstract: The present disclosure relates to a semiconductor photomultiplier which comprises one or more microcells on a substrate having at least one terminal. At least one ESD protection element is operably coupled to the at least one terminal.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: February 12, 2019
    Assignee: SensL Technologies Ltd.
    Inventors: Paul Malachy Daly, John Carlton Jackson, Brian McGarvey, Stephen Bellis
  • Publication number: 20190044019
    Abstract: A semiconductor photomultiplier includes a microcell, a photosensitive diode, and an anti-reflective coating. The microcell has an insulating layer formed over an active region. The photosensitive diode is formed in the active region beneath the insulating layer. The anti-reflective coating is provided on the insulating layer.
    Type: Application
    Filed: October 5, 2018
    Publication date: February 7, 2019
    Applicant: SENSL TECHNOLOGIES LTD.
    Inventors: Kevin O'NEILL, Liam WALL, John Carlton JACKSON
  • Patent number: 10121928
    Abstract: The present disclosure relates to a process of manufacturing a photomultiplier microcell. The process comprises providing an insulating layer over an active region; and implanting a dopant through the insulating layer to form a photosensitive diode in the active region. The insulating layer once formed is retained over the active region throughout the manufacturing process.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: November 6, 2018
    Assignee: SENSL TECHNOLOGIES LTD.
    Inventors: Kevin O'Neill, Liam Wall, John Carlton Jackson
  • Publication number: 20180309012
    Abstract: In one form, a process of manufacturing an avalanche photodiode includes forming an insulating layer over an active region of a semiconductor substrate. A shallow terminal of the avalanche photodiode is defined using a first patterned mask. A first dopant is implanted through the first patterned mask and the insulating layer to form the shallow terminal. The first patterned mask is removed. A deep terminal of the avalanche photodiode is defined using second patterned mask. A second dopant is implanted through the second patterned mask and insulating layer to form the deep terminal of the avalanche photodiode. A respective terminal of at least one of the shallow terminal and the deep terminal is defined using a respective patterned mask that forms at least two regions that are spatially separated from each other with no implanted structure located in a space therebetween.
    Type: Application
    Filed: June 25, 2018
    Publication date: October 25, 2018
    Applicant: SensL Technologies Ltd.
    Inventors: Kevin Michael O'Neill, John Carlton Jackson, Liam Wall
  • Publication number: 20180259625
    Abstract: A LiDAR readout circuit is described. The readout circuit comprises an SiPM sensor for detecting photons and generating an SIPM analog output signal. A plurality of comparators are provided each having an associated threshold value and being configured to compare the SiPM analog output signal with their associated threshold value and generate a comparison signal. A time to digital converter is configured to receive the comparison signals from the plurality of comparators.
    Type: Application
    Filed: March 10, 2017
    Publication date: September 13, 2018
    Applicant: SensL Technologies Ltd.
    Inventors: Salvatore Gnecchi, John Carlton Jackson
  • Publication number: 20180259391
    Abstract: A coincidence resolving time readout circuit is described. An analog SiPM sensor for detecting photons and generating an SIPM output signal is provided. An ADC is configured to provide multiple threshold values for converting the analogue SiPM output signal to digital values. A time to digital converter configured to receive multiple digital values from the ADC and timestamp the digital values.
    Type: Application
    Filed: March 10, 2017
    Publication date: September 13, 2018
    Applicant: SensL Technologies Ltd.
    Inventors: Salvatore Gnecchi, John Carlton Jackson, Edoardo Charbon
  • Publication number: 20180261975
    Abstract: A laser driver is described which comprises a resonant circuit having an inductor and a DC blocking capacitor. A biasing voltage reference is operably coupled to the inductor. A controller is operable for controlling the resonant circuit for selectively connecting the inductor between high and low impedance. The DC blocking capacitor is operable for connecting to a laser diode.
    Type: Application
    Filed: March 7, 2017
    Publication date: September 13, 2018
    Applicant: SensL Technologies Ltd.
    Inventors: Nikolay Pavlov, Stephen Bellis, John Carlton Jackson
  • Patent number: 10043936
    Abstract: The present disclosure relates to an avalanche photodiode comprising a substrate having an active area. A first dopant implant in the active area forms one of an anode and the cathode of the avalanche photodiode. A second dopant implant in the active area forming the other one of the anode and the cathode of the avalanche photodiode, wherein at least one of the first and second dopant implants defines a discontinuous formation having at least one interruption.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: August 7, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Kevin Michael O'Neill, John Carlton Jackson, Liam Wall
  • Publication number: 20180217278
    Abstract: A semiconductor photomultiplier (SPM) device is described. The SPM comprises a plurality of photosensitive elements, a first electrode arranged to provide a bias voltage to the photosensitive elements, a second electrode arranged as a biasing electrode for the photosensitive elements, a plurality of quench resistive elements each associated with a corresponding photosensitive element, a plurality of output loads; a first node of each output load is common to one of the photosensitive elements and the corresponding quench element; and a third electrode provides an output signal from the photosensitive elements; the third electrode is coupled to a second node of the respective output loads; the outputs loads fully or partially correct an overshoot of the output signal on the third electrode.
    Type: Application
    Filed: March 26, 2018
    Publication date: August 2, 2018
    Inventors: KEVIN O'NEILL, LIAM WALL, JOHN CARLTON JACKSON
  • Publication number: 20180164412
    Abstract: A LiDAR apparatus is described. The apparatus comprises an eye safe laser source for emitting laser pulses. An SiPM detector is provided for detected reflected photons; and optics are also provided. The eye-safe laser source is configured such that the emitted laser pulses have a width which are selectively matched to a desired range accuracy.
    Type: Application
    Filed: December 19, 2016
    Publication date: June 14, 2018
    Applicant: SensL Technologies Ltd.
    Inventors: Salvatore Gnecchi, John Carlton Jackson
  • Publication number: 20180164410
    Abstract: A LiDAR apparatus is described. The apparatus comprises an eye safe laser source for emitting laser pulses. An SiPM detector is provided for detected reflected photons; and optics are also provided. The eye-safe laser source is configured such that the emitted laser pulses have a width which are selectively matched to a desired range accuracy.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 14, 2018
    Applicant: SensL Technologies Ltd.
    Inventors: Salvatore Gnecchi, John Carlton Jackson
  • Publication number: 20180164414
    Abstract: A LiDAR apparatus comprising a laser source for emitting laser pulses. An SiPM detector is provided for detecting reflected photons. Optics and an aperture stop is provide. The aperture stop is provided intermediate the SiPM detector and the optics for limiting an angle of view of the SiPM detector.
    Type: Application
    Filed: December 19, 2016
    Publication date: June 14, 2018
    Applicant: SensL Technologies Ltd.
    Inventors: Salvatore Gnecchi, John Carlton Jackson
  • Publication number: 20180164415
    Abstract: A histogramming readout circuit is described. The readout circuit comprises a time to digital converter (TDC) configured to continually report time-stamps defining an arrival time of a laser clock and a signal output from a photosensor. Memory is provided for storing TDC events. A programmable processor is configured to implement a state machine. The state machine being operable to saves a time-stamp when a TDC event is detected; determine the time of flight of each of the photons detected by the photosensor; using each calculated time of flight to address a memory location; building up a histogram of the TDC data values using the memory locations as time-bins; maintaining a pointer to a maximum memory location where the highest number of TDC event resides. A calculator is operable to read the value of the maximum memory location and one or more adjacent time-bins either side for processing.
    Type: Application
    Filed: December 12, 2016
    Publication date: June 14, 2018
    Inventors: Steven John Buckley, John Carlton Jackson
  • Publication number: 20180164413
    Abstract: A LiDAR apparatus comprising a laser source for emitting laser pulses. An SiPM detector is provided for detecting reflected photons. Optics and an aperture stop is provide. The aperture stop is provided intermediate the SiPM detector and the optics for limiting an angle of view of the SiPM detector.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 14, 2018
    Applicant: SensL Technologies Ltd.
    Inventors: Salvatore Gnecchi, John Carlton Jackson
  • Publication number: 20180106911
    Abstract: Silicon photomultiplier circuitry is provided that comprises at least one silicon photomultiplier pixel, each pixel comprising a plurality of silicon photomultiplier microcells. The silicon photomultiplier circuitry comprises control circuitry adapted to maintain a substantially constant voltage on a connection node between microcells of the pixel. The control circuitry is adapted to minimise the onset and recovery time of an output signal by maintaining a substantially constant voltage on the connection node.
    Type: Application
    Filed: October 5, 2017
    Publication date: April 19, 2018
    Applicant: SensL Technologies Ltd.
    Inventors: John Carlton Jackson, Peter Ward, Donal Cronin, Mike Quinlan
  • Patent number: 9939536
    Abstract: A semiconductor photomultiplier (SPM) device is described. The SPM comprises a plurality of photosensitive elements, a first electrode arranged to provide a bias voltage to the photosensitive elements, a second electrode arranged as a biasing electrode for the photosensitive elements, a plurality of quench resistive elements each associated with a corresponding photosensitive element, a plurality of output loads each having a capacitive load operably coupled to a resisitive load in a parallel configuration between first and second nodes; each first node is common to one of the photosensitive elements and the corresponding quench element; and a third electrode coupled to the second nodes of the output loads to provide an output signal from the photosensitive elements. The outputs loads fully or partially correct an overshoot of an output signal on the third electrode.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: April 10, 2018
    Assignee: Sensi Technologies Ltd.
    Inventors: Kevin O'Neill, Liam Wall, John Carlton Jackson