IMAGING DEVICE AND DRIVE METHOD THEREFOR

    公开(公告)号:US20210329181A1

    公开(公告)日:2021-10-21

    申请号:US17364441

    申请日:2021-06-30

    Abstract: An imaging device includes: a photoelectric converter including a first electrode, a second electrode, and a photoelectric conversion layer that generates a signal charge; a charge accumulator connected to the first electrode to accumulate the signal charge; a first voltage supply circuit connected to the second electrode and that selectively supplies at least two different voltages including a first voltage and a third voltage greater than the first voltage; and a second voltage supply circuit that is connected to the charge accumulator via capacitance and that selectively supplies at least two different voltages including a second voltage and a fourth voltage less than the second voltage, where in a first period in which the first voltage supply circuit supplies the first voltage, the first period being included in an accumulation period for accumulating the signal charge in the charge accumulator, the second voltage supply circuit supplies the second voltage.

    IMAGING DEVICE
    3.
    发明申请
    IMAGING DEVICE 审中-公开

    公开(公告)号:US20200321385A1

    公开(公告)日:2020-10-08

    申请号:US16909070

    申请日:2020-06-23

    Abstract: An imaging device including a semiconductor substrate having a first surface, the semiconductor substrate including: a first layer containing an impurity of a first conductivity type; a second layer containing an impurity of a second conductivity type different from the first conductivity type, the second layer being closer to the first surface than the first layer is; and a pixel. The pixel includes a photoelectric converter configured to convert light into charge; and a first diffusion region containing an impurity of the first conductivity type, the first diffusion region facing the first layer via the second layer, configured to store at least a part of the charge. The first layer having a second surface adjacent to the second layer, the second surface including a convex portion toward the first surface, and the convex portion facing the first diffusion region.

    IMAGING DEVICE INCLUDING PHOTOELECTRIC CONVERSION LAYER

    公开(公告)号:US20210006735A1

    公开(公告)日:2021-01-07

    申请号:US17026851

    申请日:2020-09-21

    Abstract: An imaging device including pixels having a photoelectric converter including a first and second electrode, a photoelectric conversion layer; a charge accumulation region electrically connected to the first electrode; and a signal detection circuit. The photoelectric converter is applied with a voltage between the first electrode and the second electrode, and the photoelectric converter has a characteristic, responsive to the voltage within a range from a first voltage to a second voltage, showing that a density of current passing between the first electrode and the second electrode when light is incident on the photoelectric conversion layer becomes substantially equal to that when no light is incident on the photoelectric conversion layer. A difference between the first voltage and the second voltage is 0.5 V or more, and the voltage supply circuit supplies a voltage between the first voltage and the second voltage to the second electrode in a non-exposure period.

    IMAGING DEVICE
    7.
    发明申请
    IMAGING DEVICE 审中-公开

    公开(公告)号:US20180359439A1

    公开(公告)日:2018-12-13

    申请号:US16107687

    申请日:2018-08-21

    CPC classification number: H04N5/3698 H01L27/307 H04N5/3532 H04N5/378

    Abstract: An imaging device having a pixel including a photoelectric converter that converts incident light into charges, and a reset transistor having a first source, a first drain and a first gate, one of the first source and the first drain coupled to the photoelectric converter. The imaging device further including first voltage generating circuity that generates a first voltage; second voltage generating circuity that generates a second voltage, the second voltage generating circuity being different from the first voltage generating circuity; and first switching circuity that causes either the first voltage generating circuity or the second voltage generating circuity to selectively couple to the other of the first source and the first drain of the reset transistor.

    IMAGING DEVICE
    10.
    发明申请
    IMAGING DEVICE 审中-公开

    公开(公告)号:US20200177787A1

    公开(公告)日:2020-06-04

    申请号:US16782411

    申请日:2020-02-05

    Abstract: An imaging device includes a pixel including a photoelectric converter, where the pixel captures first data in a first exposure period and captures second data in a second exposure period different from the first exposure period, the first exposure period and the second exposure period being included in a frame period. A sensitivity of the photoelectric converter in the first exposure period is different from a sensitivity of the photoelectric converter in the second exposure period, and the imaging device generates multiple-exposure image data including at least the first data and the second data.

Patent Agency Ranking