LATERAL POWER DIODE WITH SELF-BIASING ELECTRODE
    7.
    发明申请
    LATERAL POWER DIODE WITH SELF-BIASING ELECTRODE 有权
    具有自偏电极的侧向功率二极管

    公开(公告)号:US20120133016A1

    公开(公告)日:2012-05-31

    申请号:US13365983

    申请日:2012-02-03

    IPC分类号: H01L29/872 H01L21/329

    摘要: A schottky diode includes a drift region of a first conductivity type and a lightly doped silicon region of the first conductivity type in the drift region. A conductor layer is over and in contact with the lightly doped silicon region to form a schottky contact with the lightly doped silicon region. A highly doped silicon region of the first conductivity type is in the drift region and is laterally spaced from the lightly doped silicon region such that upon biasing the schottky diode in a conducting state, a current flows laterally between the lightly doped silicon region and the highly doped silicon region through the drift region. A plurality of trenches extend into the drift region perpendicular to the current flow. Each trench has a dielectric layer lining at least a portion of the trench sidewalls and at least one conductive electrode.

    摘要翻译: 肖特基二极管包括漂移区中第一导电类型的漂移区和第一导电类型的轻掺杂硅区。 导体层与轻掺杂的硅区域结合并接触,以与轻掺杂的硅区域形成肖特基接触。 第一导电类型的高掺杂硅区域在漂移区域中并且与轻掺杂硅区域横向间隔开,使得在将肖特基二极管偏置在导通状态中时,电流在轻掺杂硅区域和高度掺杂的硅区域之间横向流动 掺杂硅区域通过漂移区域。 多个沟槽延伸到垂直于电流的漂移区域中。 每个沟槽具有内衬至少一部分沟槽侧壁和至少一个导电电极的电介质层。

    Periphery design for charge balance power devices
    10.
    发明授权
    Periphery design for charge balance power devices 有权
    电荷平衡功率器件的周边设计

    公开(公告)号:US07595542B2

    公开(公告)日:2009-09-29

    申请号:US11375683

    申请日:2006-03-13

    IPC分类号: H01L29/93

    摘要: A charge balance semiconductor power device comprises an active area having strips of p pillars and strips of n pillars arranged in an alternating manner, the strips of p and n pillars extending along a length of the active area. A non-active perimeter region surrounds the active area, and includes at least one p ring surrounding the active area. One end of at last one of the strips of p pillars extending immediately adjacent an edge of the active area terminates at a substantially straight line at which one end of each of the remainder of the strips of p pillars also end. The straight line extends perpendicular to the length of the active area along which the strips of n and p pillars extend.

    摘要翻译: 电荷平衡半导体功率器件包括有源区,其具有p柱的条带和以交替方式布置的n个柱的条带,沿着有源区的长度延伸的p和n柱的条带。 非活动周边区域包围有源区域,并且包括围绕有源区域的至少一个p环。 最后一根直立在有源区域边缘上的p柱条的一端终止于大致直线,其中p柱的每条剩余的条的一端也结束。 直线垂直于有源区域的长度延伸,n和p柱的条带沿着该区域的长度延伸。