SEMICONDUCTOR DEVICE AND METHOD FOR FORMING SAME
    31.
    发明申请
    SEMICONDUCTOR DEVICE AND METHOD FOR FORMING SAME 有权
    半导体器件及其形成方法

    公开(公告)号:US20090032848A1

    公开(公告)日:2009-02-05

    申请号:US11830542

    申请日:2007-07-30

    摘要: A method for manufacturing a semiconductor device. The method includes providing a semiconductor body of a conductivity type, wherein the semiconductor body comprises a first surface. At least one buried region of a second conductivity type is formed in the semiconductor body and at least a surface region of the second conductivity type is formed at the first surface of the semiconductor body, wherein the buried region and the surface region are formed such that they are spaced apart from each other. The buried region is formed by deep implantation of a first dopant of the second conductivity type.

    摘要翻译: 一种半导体器件的制造方法。 该方法包括提供导电类型的半导体本体,其中半导体主体包括第一表面。 在半导体本体中形成至少一个第二导电类型的掩埋区域,并且至少在第二导电类型的表面区域形成在半导体本体的第一表面处,其中形成掩埋区域和表面区域使得 它们彼此间隔开。 埋入区域通过深度注入第二导电类型的第一掺杂剂形成。

    Silicone Carbide Trench Semiconductor Device
    37.
    发明申请
    Silicone Carbide Trench Semiconductor Device 有权
    碳化硅沟槽半导体器件

    公开(公告)号:US20120037920A1

    公开(公告)日:2012-02-16

    申请号:US12854974

    申请日:2010-08-12

    IPC分类号: H01L29/24

    摘要: A semiconductor device as described herein includes a silicon carbide semiconductor body. A trench extends into the silicon carbide semiconductor body at a first surface. A gate dielectric and a gate electrode are formed within the trench. A body zone of a first conductivity type adjoins to a sidewall of the trench, the body zone being electrically coupled to a contact via a body contact zone including a higher maximum concentration of dopants than the body zone. An extension zone of the first conductivity type is electrically coupled to the contact via the body zone, wherein a maximum concentration of dopants of the extension zone along a vertical direction perpendicular to the first surface is higher than the maximum concentration of dopants of the body zone along the vertical direction. A distance between the first surface and a bottom side of the extension zone is larger than the distance between the first surface and the bottom side of the trench.

    摘要翻译: 如本文所述的半导体器件包括碳化硅半导体本体。 沟槽在第一表面延伸到碳化硅半导体本体中。 栅极电介质和栅电极形成在沟槽内。 第一导电类型的身体区域与沟槽的侧壁相邻,身体区域通过身体接触区域电耦合到接触区,该身体接触区域包括比身体区域更高的掺杂剂浓度。 第一导电类型的延伸区域经由体区电耦合到接触,其中延伸区域沿垂直于第一表面的垂直方向的掺杂剂的最大浓度高于体区的掺杂剂的最大浓度 沿垂直方向。 延伸区域的第一表面和底侧之间的距离大于沟槽的第一表面和底侧之间的距离。

    SEMICONDUCTOR DEVICE WITH STRUCTURED CURRENT SPREAD REGION AND METHOD
    38.
    发明申请
    SEMICONDUCTOR DEVICE WITH STRUCTURED CURRENT SPREAD REGION AND METHOD 有权
    具有结构化电流传播区域和方法的半导体器件

    公开(公告)号:US20090078971A1

    公开(公告)日:2009-03-26

    申请号:US11858264

    申请日:2007-09-20

    摘要: A semiconductor device with structured current spread region and method is disclosed. One embodiment provides a drift portion of a first conductivity type, a current spread portion of the first conductivity type and first portions of the first conductivity type. The current spread portion and the first portions are arranged in a first plane on the drift portion, wherein the current spread portion surrounds at least partially the first portions. The semiconductor body further includes spaced apart body regions of a second conductivity type which are arranged on the current spread portion. Further, the doping concentration of the current spread portion is higher than the doping concentrations of the drift portion and of the first portions.

    摘要翻译: 公开了一种具有结构化电流扩展区域和方法的半导体器件。 一个实施例提供第一导电类型的漂移部分,第一导电类型的电流扩展部分和第一导电类型的第一部分。 电流扩展部分和第一部分布置在漂移部分上的第一平面中,其中电流扩展部分至少部分地围绕第一部分。 半导体本体还包括布置在电流扩展部分上的间隔开的第二导电类型的主体区域。 此外,电流扩展部分的掺杂浓度高于漂移部分和第一部分的掺杂浓度。