High efficiency wide spectrum sensor

    公开(公告)号:US10269862B2

    公开(公告)日:2019-04-23

    申请号:US15702482

    申请日:2017-09-12

    IPC分类号: H01L27/146

    摘要: An optical sensor including a first material layer comprising at least a first material; a second material layer comprising at least a second material that is different from the first material, where a material bandgap of the first material is larger than a material bandgap of the second material; and a graded material layer arranged between the first material layer and the second material layer, the graded material layer comprising an alloy of at least the first material and the second material having compositions of the second material that vary along a direction that is from the first material to the second material.

    Wide spectrum optical sensor
    3.
    发明授权

    公开(公告)号:US10157954B2

    公开(公告)日:2018-12-18

    申请号:US15803591

    申请日:2017-11-03

    摘要: An optical sensor including a semiconductor substrate; a first light absorption region formed in the semiconductor substrate, the first light absorption region configured to absorb photons at a first wavelength range and to generate photo-carriers from the absorbed photons; a second light absorption region formed on the first light absorption region, the second light absorption region configured to absorb photons at a second wavelength range and to generate photo-carriers from the absorbed photons; and a sensor control signal coupled to the second light absorption region, the sensor control signal configured to provide at least a first control level and a second control level.

    Germanium-silicon light sensing apparatus

    公开(公告)号:US10256264B2

    公开(公告)日:2019-04-09

    申请号:US15712777

    申请日:2017-09-22

    摘要: An image sensor array including a carrier substrate; a first group of photodiodes coupled to the carrier substrate, where the first group of photodiodes include a first photodiode, and where the first photodiode includes a semiconductor layer configured to absorb photons at visible wavelengths and to generate photo-carriers from the absorbed photons; and a second group of photodiodes coupled to the carrier substrate, where the second group of photodiodes include a second photodiode, and where the second photodiode includes a germanium-silicon region fabricated on the semiconductor layer, the germanium-silicon region configured to absorb photons at infrared or near-infrared wavelengths and to generate photo-carriers from the absorbed photons.

    High-speed light sensing apparatus

    公开(公告)号:US10254389B2

    公开(公告)日:2019-04-09

    申请号:US15338660

    申请日:2016-10-31

    摘要: An apparatus including a semiconductor substrate; an absorption layer coupled to the semiconductor substrate, the absorption layer including a photodiode region configured to absorb photons and to generate photo-carriers from the absorbed photons; one or more first switches controlled by a first control signal, the one or more first switches configured to collect at least a portion of the photo-carriers based on the first control signal; and one or more second switches controlled by a second control signal, the one or more second switches configured to collect at least a portion of the photo-carriers based on the second control signal, where the second control signal is different from the first control signal.

    High-speed light sensing apparatus
    10.
    发明授权

    公开(公告)号:US10353056B2

    公开(公告)日:2019-07-16

    申请号:US16146656

    申请日:2018-09-28

    摘要: An apparatus including a semiconductor substrate; an absorption layer coupled to the semiconductor substrate, the absorption layer including a photodiode region configured to absorb photons and to generate photo-carriers from the absorbed photons; one or more first switches controlled by a first control signal, the one or more first switches configured to collect at least a portion of the photo-carriers based on the first control signal; and one or more second switches controlled by a second control signal, the one or more second switches configured to collect at least a portion of the photo-carriers based on the second control signal, where the second control signal is different from the first control signal.