Semiconductor Device and Method of Making the Same
    70.
    发明申请
    Semiconductor Device and Method of Making the Same 审中-公开
    半导体器件及其制造方法

    公开(公告)号:US20150255597A1

    公开(公告)日:2015-09-10

    申请号:US14716200

    申请日:2015-05-19

    Abstract: A semiconductor device includes a drift region in a first region of a semiconductor body. The drift region includes dopants of a first conductivity type. A dopant retarding region is formed at least adjacent an edge of the drift region. Dopants of a second conductivity type are implanted into the semiconductor body. The semiconductor body is annealed to form a body region so that dopants of the second conductivity type are driven into the semiconductor body at a first diffusion rate. The dopant retarding region prevents the dopants from diffusing into the drift region at the first diffusion rate.

    Abstract translation: 半导体器件包括在半导体本体的第一区域中的漂移区域。 漂移区域包括第一导电类型的掺杂剂。 至少在漂移区域的边缘附近形成掺杂剂延迟区域。 将第二导电类型的掺杂剂注入半导体本体。 将半导体体进行退火以形成体区,使得第二导电类型的掺杂剂以第一扩散速率被驱动到半导体本体中。 掺杂剂延迟区域防止掺杂剂以第一扩散速率扩散到漂移区域。

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