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    PIXEL ARRANGEMENT, PIXEL MATRIX, IMAGE SENSOR AND METHOD OF OPERATING A PIXEL ARRANGEMENT
    1.
    发明公开
    PIXEL ARRANGEMENT, PIXEL MATRIX, IMAGE SENSOR AND METHOD OF OPERATING A PIXEL ARRANGEMENT 审中-公开

    公开(公告)号：US20230178571A1

    公开(公告)日：2023-06-08

    申请号：US17543302

    申请日：2021-12-06

    申请人： ams Sensors USA Inc.

    发明人： Kevin TETZ ,  Scott JOHNSON

    IPC分类号： H01L27/146

    CPC分类号： H01L27/14614 ,  H01L27/14649 ,  H01L27/1462

    摘要： A pixel arrangement (10) is provided. The pixel arrangement (10) comprises a photosensitive stage (20) being configured to generate electrical signals by converting electromagnetic radiation, wherein the photosensitive stage (20) forms at least one sub-pixel of a first type (40) comprising a photodiode (41) that is configured generate a low sensitivity signal, and at least one sub-pixel of a second type (50) comprising a photodiode (51) that is configured to generate a high sensitivity signal. The pixel arrangement (10) further comprises a sample-and-hold stage (30), wherein the sample-and-hold (30) stage is electrically coupled to the photosensitive stage (20) via a diffusion node (60) and configured to sample and store the electrical signals from the photosensitive stage (20).

    PIXEL ARRANGEMENT AND METHOD FOR OPERATING A PIXEL ARRANGEMENT
    2.
    发明公开
    PIXEL ARRANGEMENT AND METHOD FOR OPERATING A PIXEL ARRANGEMENT 审中-公开

    公开(公告)号：US20240357254A1

    公开(公告)日：2024-10-24

    申请号：US18681753

    申请日：2022-08-10

    申请人： ams Sensors Belgium BVBA ,  ams Sensors USA Inc.

    发明人： Adi Xhakoni ,  Scott Johnson ,  Denver Lloyd

    IPC分类号： H04N25/77

    CPC分类号： H04N25/77

    摘要： In an embodiment a pixel arrangement includes a photodiode, a circuit node, a transfer transistor coupled to the photodiode and to the circuit node, an amplifier with an input coupled to the circuit node, a first capacitor and a second capacitor, a first transistor coupled to an output of the amplifier and to the first capacitor, a second transistor coupled to the first transistor and to the second capacitor, a supply terminal, a reset transistor coupled to the supply terminal, a coupling transistor coupled to the circuit node and to the reset transistor and a third capacitor with a first electrode coupled to a node between the reset transistor and the coupling transistor.

    IMAGE SENSOR AND METHOD OF MANUFACTURING AN IMAGE SENSOR
    3.
    发明公开
    IMAGE SENSOR AND METHOD OF MANUFACTURING AN IMAGE SENSOR 审中-公开

    公开(公告)号：US20240006436A1

    公开(公告)日：2024-01-04

    申请号：US17852676

    申请日：2022-06-29

    申请人： ams Sensors USA Inc.

    发明人： Muhammad Maksudur RAHMAN ,  Ananth TAMMA ,  Stefano GUERRIERI

    IPC分类号： H01L27/146

    CPC分类号： H01L27/14621 ,  H01L27/1469 ,  H01L27/14634 ,  H01L27/14643

    摘要： An image sensor, comprises a three-dimensional integrated circuit comprising a stack with at least a top-, a middle-, and a bottom-tier. The bottom-tier (BTR) comprises a first array of photodetectors, denoted first pixels (PD1), and the first pixels being sensitive in the visual and/or near-infrared spectral range. The middle-tier (MTR) comprises a second array of photodetectors, denoted second pixels (PD2), and the second pixels being sensitive in the short-wave infrared spectral range. The top-tier (TTR) comprises an application-specific integrated circuit, denoted ASIC, operable to read out the arrays of the first and second photodiodes (PD1, PD2).

    SELF CALIBRATING BARRIER MODULATION PIXEL
    5.
    发明公开
    SELF CALIBRATING BARRIER MODULATION PIXEL 审中-公开

    公开(公告)号：US20240340547A1

    公开(公告)日：2024-10-10

    申请号：US18681721

    申请日：2022-08-10

    申请人： ams Sensors USA Inc. ,  ams Sensors Belgium BVBA

    发明人： Denver Lloyd ,  Scott Johnson ,  Adi Xhakoni

    IPC分类号： H04N25/59 ,  H04N25/53 ,  H04N25/616 ,  H04N25/703

    CPC分类号： H04N25/59 ,  H04N25/53 ,  H04N25/616 ,  H04N25/703

    摘要： In an embodiment a method for operating a pixel arrangement includes, during an exposure period, accumulating, by a photodetector, in a first integration period, charge carriers, pulsing, at an end of the first integration period, a transfer transistor to a first voltage level for transferring a portion of the accumulated charge carriers to a diffusion node, wherein the portion is configured to be drained to a supply voltage, continuing, by the photodetector, to accumulate, in a second integration period, charge carriers, after the second integration period, pulsing the transfer transistor to a respective further voltage level with at least one additional pulse, wherein, with each additional pulse, an additional portion of the accumulated charge carriers is configured to be drained to the supply voltage, and wherein each additional pulse is followed by an additional continued accumulation of charge carriers in a respective additional integration period with the photodetector.

    Image sensor and method for operating an image sensor
    7.
    发明授权
    Image sensor and method for operating an image sensor 有权

    公开(公告)号：US11647310B1

    公开(公告)日：2023-05-09

    申请号：US17711088

    申请日：2022-04-01

    申请人： ams Sensors USA Inc.

    发明人： Kevin Fronczak ,  David Sackett ,  Adi Xhakoni

    IPC分类号： H04N25/77 ,  H04N25/75 ,  H04N25/616 ,  H04N25/772

    CPC分类号： H04N25/75 ,  H04N25/616 ,  H04N25/772

    摘要： An image sensor includes a pixel array including a plurality of pixels each including a photosensitive element, and a readout circuit, wherein the pixels are arranged in at least two columns, within each column at least some of the pixels of the column are connected with a common column bus, respectively, for each column the readout circuit includes a first analog-to-digital converter (ADC) and a second ADC, for each column the first ADC is connected with the column bus, and for each column the second ADC is connectable with at least one of the column bus and a reference potential or the second ADC is connected with one optically shielded pixel of the pixel array.

    SELF CALIBRATING BARRIER MODULATION PIXEL
    8.
    发明申请
    SELF CALIBRATING BARRIER MODULATION PIXEL 有权

    公开(公告)号：US20230051657A1

    公开(公告)日：2023-02-16

    申请号：US17818962

    申请日：2022-08-10

    申请人： ams Sensors USA Inc. ,  ams Sensors Belgium BVBA

    发明人： Denver Lloyd ,  Adi Xhakoni ,  Scott Johnson

    IPC分类号： H04N5/355 ,  H01L27/146 ,  H04N5/3745 ,  H04N5/378

    摘要： In an embodiment a pixel arrangement includes a photodetector configured to accumulate charge carriers by converting electromagnetic radiation, a transfer transistor electrically coupled to the photodetector, a diffusion node electrically coupled to the transfer transistor, a reset transistor electrically coupled to the diffusion node and to a pixel supply voltage and a sample-and-hold stage including at least a first capacitor and a second capacitor, an input of the sample-and-hold stage being electrically coupled to the diffusion node via an amplifier, wherein the transfer transistor is configured to be pulsed to different voltage levels for transferring parts of the accumulated charge carriers to the diffusion node, wherein at least the second capacitor is configured to store a low conversion gain signal representing a first part of the accumulated charge carriers, and wherein the first capacitor is configured to store a high conversion gain signal representing a remaining part of the accumulated charge carriers.

    PIXEL ARRANGEMENT, IMAGE SENSOR AND METHOD OF OPERATING A PIXEL ARRANGEMENT
    9.
    发明申请
    PIXEL ARRANGEMENT, IMAGE SENSOR AND METHOD OF OPERATING A PIXEL ARRANGEMENT 有权

    公开(公告)号：US20230049844A1

    公开(公告)日：2023-02-16

    申请号：US17818938

    申请日：2022-08-10

    申请人： ams Sensors USA Inc. ,  ams Sensors Belgium BVBA

    发明人： Denver Lloyd ,  Adi Xhakoni ,  Scott Johnson

    IPC分类号： H04N5/353 ,  H04N5/378 ,  H04N5/359 ,  H04N5/355

    摘要： In an embodiment a pixel arrangement includes at least one photodiode configured to convert electromagnetic radiation into a respective charge signal, a transfer gate between the photodiode and a capacitance for transferring the respective charge signal to the capacitance, a reset gate electrically coupled to the capacitance, the reset gate configured to reset the capacitance, an amplifier electrically connected to the capacitance and configured to generate, based on the respective charge signal and on a sensitivity mode, a respective amplified signal being a low sensitivity signal or a high sensitivity signal, respectively, wherein the low sensitivity signal and the high sensitivity signal are based on a common noise level, a first capacitor configured to store the high sensitivity signal, a second capacitor configured to store the low sensitivity signal, a first switch between an output terminal of the amplifier and the first capacitor and a second switch between the output terminal of the amplifier and the second capacitor.