IMAGE SENSOR WITH REDUCED NOISE
    41.
    发明申请

    公开(公告)号:US20190222781A1

    公开(公告)日:2019-07-18

    申请号:US16115987

    申请日:2018-08-29

    IPC分类号: H04N5/357 H01L27/146

    摘要: An image sensor includes a photoelectric conversion unit configured to receive light to generate an electric charge and provide the electric charge to a first node, a transfer transistor configured to provide a voltage level of the first node to a floating diffusion node in response to a first signal, a booster configured to increase a voltage level of the floating diffusion node in response to a second signal, a source follower transistor configured to provide the voltage level of the floating diffusion node to a second node, and a selection transistor configured to provide a voltage level of the second node to a pixel output terminal in response to a third signal. After the selection transistor is turned on, the booster is enabled, and before the transfer transistor is turned on, the booster is disabled.

    IMAGE READING DEVICE AND SEMICONDUCTOR DEVICE

    公开(公告)号:US20180278809A1

    公开(公告)日:2018-09-27

    申请号:US15918622

    申请日:2018-03-12

    发明人: Shunichi SHIMA

    摘要: An image reading device that reads an image including a fluorescent color, including: a first light source having a maximum light emission intensity at a first wavelength; a second light source having a maximum light emission intensity at a second wavelength that is longer than the first wavelength; and an image reading chip configured to read the image. The image reading chip includes a pixel including a photodetector that performs photoelectric conversion on light received from the image, and the spectral sensitivity of the photodetector when photoelectric conversion is performed takes a maximum value at light having a wavelength in a region from 400 nm to 500 nm inclusive.

    SOLID-STATE IMAGING DEVICE, IMAGING SYSTEM, AND MOVABLE OBJECT

    公开(公告)号:US20180277575A1

    公开(公告)日:2018-09-27

    申请号:US15914505

    申请日:2018-03-07

    摘要: A solid-state imaging device includes a plurality of pixels each including a photoelectric conversion unit, a first holding portion holding charges transferred from the photoelectric conversion unit, a second holding portion holding charges transferred from the first holding portion, and an amplifier unit outputting a signal based on charges in the second holding portion. The photoelectric conversion unit includes a first conductivity type first semiconductor region, a second conductivity type second semiconductor region thereunder, a first conductivity type third semiconductor region thereunder, and a second conductivity type fourth semiconductor region thereunder. The first holding portion includes a second conductivity type fifth semiconductor region and a first conductivity type sixth semiconductor region thereunder at a depth of the third semiconductor region being provided. A semiconductor region having a lower potential than the third semiconductor region and the sixth semiconductor region is provided between the third and sixth semiconductor regions.

    SEMICONDUCTOR ELEMENT AND SOLID-STATE IMAGING DEVICE

    公开(公告)号:US20180269242A1

    公开(公告)日:2018-09-20

    申请号:US15760743

    申请日:2016-09-16

    摘要: A semiconductor element includes a semiconductor region (11) of a first conductivity type, a buried charge-generation region (16) of a second conductivity type, buried in an upper portion of the semiconductor region (11) to implement a photodiode (D1) together with the semiconductor region (11) to generate charges, a charge-readout region (15) of the second conductivity type, provided in the semiconductor region (11) to accumulate the charges transferred from the buried charge-generation region (16), and a reset-performing region (12) of the second conductivity type, provided in the semiconductor region (11), a variable voltage is applied to the reset-performing region (12) to change the height of a potential barrier generated in the semiconductor region (11) sandwiched between the charge-readout region (15) and the reset-performing region (12) to exhaust the charges accumulated in the charge-readout region (15). The semiconductor element has a high pixel conversion gain, ultralow noise of a photon counting level and implements a solid-state imaging device.