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    LiDAR readout circuit
    2.
    发明授权
    LiDAR readout circuit 有权

    公开(公告)号：US10585174B2

    公开(公告)日：2020-03-10

    申请号：US15456193

    申请日：2017-03-10

    Applicant: SensL Technologies Ltd.

    Inventor： Salvatore Gnecchi ,  John Carlton Jackson

    IPC: G01S7/48 ,  G01S7/481 ,  G01T1/24 ,  G01S7/487 ,  G01S7/4861 ,  G01S7/4863

    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.

    Process of manufacturing an avalanche diode
    3.
    发明授权
    Process of manufacturing an avalanche diode 有权

    公开(公告)号：US10290760B2

    公开(公告)日：2019-05-14

    申请号：US16017492

    申请日：2018-06-25

    Applicant: SensL Technologies Ltd.

    Inventor： Kevin Michael O'Neill ,  John Carlton Jackson ,  Liam Wall

    IPC: G11C11/36 ,  G11C11/34 ,  H01L31/107 ,  H01L31/0224 ,  H01L27/144 ,  H01L31/18 ,  H01L31/02

    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.

    Semiconductor photomultiplier
    5.
    发明授权
    Semiconductor photomultiplier 有权

    公开(公告)号：US11056525B2

    公开(公告)日：2021-07-06

    申请号：US15335658

    申请日：2016-10-27

    Applicant: SensL Technologies LTD

    Inventor： Brian McGarvey ,  Stephen John Bellis ,  John Carlton Jackson

    IPC: H01L27/144 ,  H01L23/48 ,  H01L27/146 ,  H01L31/107 ,  H01L49/02 ,  G01J1/44

    Abstract: The present disclosure relates to a semiconductor photomultiplier comprising a a substrate; an array of photosensitive elements formed on a first major surface of the substrate; a plurality of primary bus lines interconnecting the photosensitive elements; at least one segmented secondary bus line provided on a second major surface of the substrate which is operably coupled to one or more terminals; and multiple vertical interconnect access (via) extending through the substrate operably coupling the primary bus lines to the at least one segmented secondary bus line.

    Histogram Readout Method and Circuit for Determining the Time of Flight of a Photon
    6.
    发明申请
    Histogram Readout Method and Circuit for Determining the Time of Flight of a Photon 有权

    公开(公告)号：US20180164415A1

    公开(公告)日：2018-06-14

    申请号：US15376464

    申请日：2016-12-12

    Applicant: SensL Technologies Ltd

    Inventor： Steven John Buckley ,  John Carlton Jackson

    IPC: G01S7/486 ,  G01S17/10 ,  G04F10/00

    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.

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