IMAGE SENSORS AND ELECTRONIC DEVICES
    22.
    发明公开

    公开(公告)号:US20230299115A1

    公开(公告)日:2023-09-21

    申请号:US18186402

    申请日:2023-03-20

    CPC classification number: H01L27/14647 H01L31/035209

    Abstract: An image sensor may include a first photo-sensing device on a semiconductor substrate and configured to sense light of a first wavelength spectrum, and second and third photo-sensing devices integrated in the semiconductor substrate and configured to sense light of a second and third wavelength spectrum, respectively. The first photo-sensing device may overlap each of the second and third photo-sensing devices in a thickness direction of the semiconductor substrate. The second and third photo-sensing devices do not overlap in the thickness direction and each have an upper surface, a lower surface, and a doped region therebetween. The third photo-sensing device includes an upper surface deeper further from the upper surface of the semiconductor substrate than the upper surface of the second photo-sensing device and a doped region thicker than the doped region of the second photo-sensing device. The image sensor may omit the first photo-sensing device.

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