SOLID-STATE IMAGE PICKUP DEVICE AND METHOD FOR PRODUCING THE SAME
    7.
    发明申请
    SOLID-STATE IMAGE PICKUP DEVICE AND METHOD FOR PRODUCING THE SAME 有权
    固态图像拾取装置及其制造方法

    公开(公告)号:US20140231948A1

    公开(公告)日:2014-08-21

    申请号:US14259494

    申请日:2014-04-23

    CPC classification number: H01L27/1463 H01L27/14643

    Abstract: A solid-state image pickup device includes an element isolation insulating film electrically isolating pixels on the surface of a well region; a first isolation diffusion layer electrically isolating the pixels under the element isolation insulating film; and a second isolation diffusion layer electrically isolating the pixels under the first isolation diffusion layer, wherein a charge accumulation region is disposed in the well region surrounded by the first and second isolation diffusion layers, the inner peripheral part of the first isolation diffusion layer forms a projecting region, an impurity having a conductivity type of the first isolation diffusion layer and an impurity having a conductivity type of the charge accumulation region are mixed in the projecting region, and a part of the charge accumulation region between the charge accumulation region and the second isolation diffusion layer is abutted or close to the second isolation diffusion layer under the projecting region.

    Abstract translation: 固态图像拾取装置包括电隔离阱区表面上的像素的元件隔离绝缘膜; 电隔离元件隔离绝缘膜下面的像素的第一隔离扩散层; 以及第二隔离扩散层,电隔离第一隔离扩散层下方的像素,其中电荷累积区域设置在由第一和第二隔离扩散层围绕的阱区域中,第一隔离扩散层的内周部分形成 投影区域,具有第一隔离扩散层的导电类型的杂质和具有电荷累积区域的导电类型的杂质在投影区域中混合,并且电荷累积区域和第二隔离区域之间的电荷累积区域的一部分 隔离扩散层与突出区域下方的第二隔离扩散层抵接或靠近。

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