公开(公告)号：US08373247B2

公开(公告)日：2013-02-12

申请号：US13029925

申请日：2011-02-17

申请人： Wataru Saito ,  Syotaro Uno ,  Munehisa Yabuzaki ,  Shunji Taniuchi ,  Miho Watanabe

发明人： Wataru Saito ,  Syotaro Uno ,  Munehisa Yabuzaki ,  Shunji Taniuchi ,  Miho Watanabe

IPC分类号： H01L29/06

CPC分类号： H01L27/07 ,  H01L29/72

摘要： According to one embodiment, a semiconductor device includes a first semiconductor region of a first conductivity type, a second semiconductor region of the first conductivity type, a first main electrode, a third semiconductor region of a second conductivity type, a second main electrode, and a plurality of embedded semiconductor regions of the second conductivity type. The second semiconductor region is formed on a first major surface of the first semiconductor region. The first main electrode is formed on a face side opposite to the first major surface of the first semiconductor region. The third semiconductor region is formed on a second major surface of the second semiconductor region on a side opposite to the first semiconductor region. The second main electrode is formed to bond to the third semiconductor region. The embedded semiconductor regions are provided in a termination region. A distance between the embedded semiconductor region and the second major surface along a direction from the second major surface toward the first major surface becomes longer toward outside from the device region.

摘要翻译： 根据一个实施例，半导体器件包括第一导电类型的第一半导体区域，第一导电类型的第二半导体区域，第一主电极，第二导电类型的第三半导体区域，第二主电极和 多个第二导电类型的嵌入式半导体区域。 第二半导体区域形成在第一半导体区域的第一主表面上。 第一主电极形成在与第一半导体区域的第一主表面相对的正面上。 第三半导体区域形成在第二半导体区域的与第一半导体区域相对的一侧的第二主表面上。 第二主电极形成为结合到第三半导体区域。 嵌入式半导体区域设置在终端区域中。 沿着从第二主表面朝向第一主表面的方向在嵌入式半导体区域和第二主表面之间的距离从器件区域向外部变长。