Semiconductor device and manufacturing method of the same
    5.
    发明授权
    Semiconductor device and manufacturing method of the same 有权
    半导体器件及其制造方法相同

    公开(公告)号:US08384153B2

    公开(公告)日:2013-02-26

    申请号:US13177707

    申请日:2011-07-07

    IPC分类号: H01L21/336

    摘要: A semiconductor device includes: a substrate; multiple first and second conductive type regions on the substrate for providing a super junction structure; a channel layer on the super junction structure; a first conductive type layer in the channel layer; a contact second conductive type region in the channel layer; a gate electrode on the channel layer via a gate insulation film; a surface electrode on the channel layer; a backside electrode on the substrate opposite to the super junction structure; and an embedded second conductive type region. The embedded second conductive type region is disposed in a corresponding second conductive type region, protrudes into the channel layer, and contacts the contact second conductive type region. The embedded second conductive type region has an impurity concentration higher than the channel layer, and has a maximum impurity concentration at a position in the corresponding second conductive type region.

    摘要翻译: 半导体器件包括:衬底; 用于提供超结结构的衬底上的多个第一和第二导电类型区域; 超级结结构上的沟道层; 沟道层中的第一导电类型层; 沟道层中的接触第二导电类型区域; 通过栅极绝缘膜在沟道层上形成栅电极; 沟道层上的表面电极; 衬底上的与超结结构相反的背面电极; 和嵌入式第二导电类型区域。 嵌入的第二导电类型区域设置在相应的第二导电类型区域中,突出到沟道层中,并且与接触第二导电类型区域接触。 嵌入的第二导电类型区域的杂质浓度高于沟道层,并且在相应的第二导电类型区域的位置具有最大的杂质浓度。

    Load-short-circuit-tolerant semiconductor device having trench gates
    8.
    发明授权
    Load-short-circuit-tolerant semiconductor device having trench gates 有权
    具有沟槽栅极的负载短路容忍半导体器件

    公开(公告)号:US09178050B2

    公开(公告)日:2015-11-03

    申请号:US14347077

    申请日:2012-09-13

    摘要: In a semiconductor device, a trench gate has a bottom portion in a drift layer and a communication portion extending from a surface of a base layer to communicate with the bottom portion. A distance between adjacent bottom portions is smaller than a distance between adjacent communication portions in a x-direction. A region between adjacent trench gates is divided in a y-direction into an effective region as an electron injection source and an ineffective region which does not serve as the electron injection source. An interval L1 (>0) of the ineffective region in the y-direction, a length D1 of the communication portion in the z-direction, and a length D2 of the bottom portion in the z-direction satisfy L1≦2(D1+D2). The z-direction is orthogonal to a x-y plane defined by the x-direction and the y-direction which are orthogonal to each other.

    摘要翻译: 在半导体器件中,沟槽栅极具有漂移层中的底部部分和从基底层的表面延伸以与底部部分连通的连通部分。 相邻底部之间的距离小于x方向上的相邻连通部之间的距离。 相邻沟槽栅极之间的区域在y方向上分成有效区域作为电子注入源和不用作电子注入源的无效区域。 y方向无效区域的间隔L1(> 0),z方向上的连通部的长度D1和z方向的底部的长度D2满足L1≦̸ 2(D1 + D2)。 z方向与由x方向和y方向相互正交的x-y平面正交。

    DRIVE CONTROLLER
    9.
    发明申请
    DRIVE CONTROLLER 有权
    驱动控制器

    公开(公告)号:US20120025794A1

    公开(公告)日:2012-02-02

    申请号:US13191765

    申请日:2011-07-27

    IPC分类号: G05F1/00

    摘要: A drive controller for driving an inductive load connected to a node between first and second switches connected in series with a direct current voltage source includes a first diode, a series circuit of a second diode and an inductor, and a control circuit. The first diode is a parasitic diode of the first switch and connected in antiparallel with the first switch. The series circuit is connected in parallel with the first diode. The control circuit drives the inductor load by applying a control voltage to the first switch before applying a first ON-voltage to the second switch. The first ON-voltage turns ON the second switch. The control voltage is greater than zero and less than a second ON-voltage. The second ON-voltage turns ON the first switch. The control voltage causes the first switch to operate in weak inversion.

    摘要翻译: 用于驱动连接到与直流电压源串联连接的第一和第二开关之间的节点的感性负载的驱动控制器包括第一二极管,第二二极管的串联电路和电感器以及控制电路。 第一二极管是第一开关的寄生二极管,并与第一开关反并联。 串联电路与第一二极管并联连接。 控制电路通过在向第二开关施加第一导通电压之前向第一开关施加控制电压来驱动电感器负载。 第一个接通电压接通第二个开关。 控制电压大于零且小于第二导通电压。 第二个接通电压打开第一个开关。 控制电压使第一个开关在弱反转下工作。

    Drive controller
    10.
    发明授权
    Drive controller 有权
    驱动控制器

    公开(公告)号:US08890496B2

    公开(公告)日:2014-11-18

    申请号:US13191765

    申请日:2011-07-27

    IPC分类号: G05F1/00 H02M3/158 H02M3/155

    摘要: A drive controller for driving an inductive load connected to a node between first and second switches connected in series with a direct current voltage source includes a first diode, a series circuit of a second diode and an inductor, and a control circuit. The first diode is a parasitic diode of the first switch and connected in antiparallel with the first switch. The series circuit is connected in parallel with the first diode. The control circuit drives the inductor load by applying a control voltage to the first switch before applying a first ON-voltage to the second switch. The first ON-voltage turns ON the second switch. The control voltage is greater than zero and less than a second ON-voltage. The second ON-voltage turns ON the first switch. The control voltage causes the first switch to operate in weak inversion.

    摘要翻译: 用于驱动连接到与直流电压源串联连接的第一和第二开关之间的节点的感性负载的驱动控制器包括第一二极管,第二二极管的串联电路和电感器以及控制电路。 第一二极管是第一开关的寄生二极管,并与第一开关反并联。 串联电路与第一二极管并联连接。 控制电路通过在向第二开关施加第一导通电压之前向第一开关施加控制电压来驱动电感器负载。 第一个接通电压接通第二个开关。 控制电压大于零且小于第二导通电压。 第二个接通电压打开第一个开关。 控制电压使第一个开关在弱反转下工作。