Active pixel sensor cell with integrating varactor and method for using such cell
    5.
    发明授权
    Active pixel sensor cell with integrating varactor and method for using such cell 有权
    具有积分变容二极管的有源像素传感器单元和使用这种单元的方法

    公开(公告)号:US07262401B2

    公开(公告)日:2007-08-28

    申请号:US11496951

    申请日:2006-08-01

    IPC分类号: H01L27/00 H04N3/14

    摘要: An active pixel sensor cell including at least one photodiode and reset circuitry and an integrating varactor coupled to the photodiode, a method for reading out such a cell, and an image sensor including an array of such cells. The photodiode can be exposed to photons during an exposure interval to accumulate a sequence of subexposure charges at a first node of the photodiode. Each of the subexposure charges accumulates at the first node during a different subexposure interval of the exposure interval. The photodiode is reset during each of a sequence of reset intervals, each reset interval occurring before a different one of the subexposure intervals. An output signal indicative of an exposure charge accumulated at the storage node during the exposure interval can be asserted from the cell, where the exposure charge is indicative of a sum of all the subexposure charges.

    摘要翻译: 包括至少一个光电二极管和复位电路的有源像素传感器单元和耦合到光电二极管的积分变容二极管,用于读出这样的单元的方法以及包括这种单元阵列的图像传感器。 在曝光间隔期间,可以将光电二极管暴露于​​光子,以在光电二极管的第一节点处累积次曝光电荷序列。 在曝光间隔的不同子曝光间隔期间,每个次曝光电荷在第一节点处累积。 在每个复位间隔的每一个期间复位光电二极管,每个复位间隔发生在不同的次曝光间隔之前。 指示在曝光间隔期间在存储节点处累积的曝光电荷的输出信号可以从单元断言,其中曝光电荷指示所有次曝光电荷的总和。

    Low cost, high density diffusion diode-capacitor
    9.
    发明授权
    Low cost, high density diffusion diode-capacitor 有权
    低成本,高密度扩散二极管电容器

    公开(公告)号:US06798641B1

    公开(公告)日:2004-09-28

    申请号:US10647602

    申请日:2003-08-25

    IPC分类号: H01G4228

    CPC分类号: H01L27/0805 H01L29/92

    摘要: A multiple-layer diffusion junction capacitor structure includes multiple layers of inter-digitated P-type dopant and N-type dopant formed in a semiconductor substrate. An opening in a hard mask is formed taking care to control the angle of the sidewall using a dry, anisotropic etching process. P-type and N-type dopant are then implanted at positive and negative shallow angles, respectively, each with a different energy and dose. By utilizing the properly determined implant angles, implant energies and implant doses for each of the dopant types, a high capacitance and high density diode junction capacitor, with inter-digitated N-type and P-type regions in the vertical direction is provided.

    摘要翻译: 多层扩散结电容器结构包括在半导体衬底中形成的多层数字化P型掺杂剂和N型掺杂剂。 形成硬掩模的开口,其中形成了使用干燥的各向异性蚀刻工艺来控制侧壁的角度。 然后分别以正和负的浅角度注入P型和N型掺杂剂,每种具有不同的能量和剂量。 通过利用适当确定的植入角度,提供每种掺杂剂类型的注入能量和注入剂量,高电容和高密度二极管结电容器,在垂直方向上具有数字化的N型和P型区域。

    Method of inducing movement of charge carriers through a semiconductor material
    10.
    发明授权
    Method of inducing movement of charge carriers through a semiconductor material 有权
    引起载流子通过半导体材料的移动的方法

    公开(公告)号:US06660537B1

    公开(公告)日:2003-12-09

    申请号:US10219211

    申请日:2002-08-15

    IPC分类号: H01L2100

    摘要: A conductive trace is formed over and insulated from a region of semiconductor material, such as a region adjacent to the n+ region of an n+/p− photodiode, and a sawtooth current is made to flow through the conductive trace. The sawtooth current induces charge carriers to move through the semiconductor material to a collection region in the semiconductor material.

    摘要翻译: 导电迹线形成在与半导体材料的区域(例如与n + / p-型光电二极管的n +区域相邻的区域)之上并与之绝缘,并且使锯齿电流流过导电迹线。 锯齿电流引起电荷载流子移动通过半导体材料到半导体材料中的收集区域。