Wide spectrum optical sensor
    2.
    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
    6.
    发明申请

    公开(公告)号:US20180012917A1

    公开(公告)日:2018-01-11

    申请号:US15712852

    申请日:2017-09-22

    摘要: A method for fabricating an image sensor array having a first group of photodiodes for detecting light at visible wavelengths a second group of photodiodes for detecting light at infrared or near-infrared wavelengths, the method including growing a germanium-silicon layer on a semiconductor donor wafer; defining pixels of the image sensor array on the germanium-silicon layer; defining a first interconnect layer on the germanium-silicon layer, wherein the interconnect layer includes a plurality of interconnects coupled to the first group of photodiodes and the second group of photodiodes; defining integrated circuitry for controlling the pixels of the image sensor array on a semiconductor carrier wafer; defining a second interconnect layer on the semiconductor carrier wafer, wherein the second interconnect layer includes a plurality of interconnects coupled to the integrated circuitry; and bonding the first interconnect layer with the second interconnect layer.

    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.