Method for producing a connection electrode for two semiconductor zones arranged one above another
    3.
    发明申请
    Method for producing a connection electrode for two semiconductor zones arranged one above another 有权
    一种制造用于两个半导体区域的连接电极的方法,所述半导体区域布置在另一个之上

    公开(公告)号:US20070093019A1

    公开(公告)日:2007-04-26

    申请号:US11527743

    申请日:2006-09-26

    IPC分类号: H01L21/8242 H01L21/76

    摘要: Method for producing a connection electrode for two semiconductor zones arranged one above another The invention relates to a method for producing a connection electrode for a first semiconductor zone and a second semiconductor zone, which are arranged one above another and are doped complementarily with respect to one another, which method comprises the method steps of: producing a trench extending through the first semiconductor zone right into the second semiconductor zone in such a way that the first semiconductor zone is uncovered at sidewalls of the trench and the second semiconductor zone is uncovered at least at a bottom of the trench, applying a protective layer to one of the first and second semiconductor zones in the trench, producing a first connection zone in the other of the two semiconductor zones, which is not covered by the protective layer, by introducing dopant atoms into this other semiconductor zone via the trench, the connection zone being of the same conductivity type as said other semiconductor zone, but doped more highly, depositing an electrode layer at least onto the sidewalls and the bottom of the trench for the purpose of producing the connection electrode.

    摘要翻译: 一种制造用于两个半导体区域的连接电极的方法本发明涉及一种用于制造用于第一半导体区域和第二半导体区域的连接电极的方法,所述连接电极被布置在另一个之上,并且相对于一个 另一方面,该方法包括以下方法步骤:产生通过第一半导体区域直接进入第二半导体区域的沟槽,使得第一半导体区域在沟槽的侧壁处未被覆盖,并且至少覆盖第二半导体区域 在沟槽的底部,在沟槽中的第一和第二半导体区域中的一个上施加保护层,在两个半导体区域中的另一个半导体区域中的第一连接区域中,未被保护层覆盖,通过引入掺杂剂 原子通过沟槽进入该另一半导体区,连接区具有相同的导电性 类型作为所述另一半导体区,但是掺杂更高,至少在沟槽的侧壁和底部上沉积电极层以产生连接电极。

    Semiconductor device with trench transistors and method for manufacturing such a device
    5.
    发明申请
    Semiconductor device with trench transistors and method for manufacturing such a device 有权
    具有沟槽晶体管的半导体器件及其制造方法

    公开(公告)号:US20080116511A1

    公开(公告)日:2008-05-22

    申请号:US11600422

    申请日:2006-11-16

    IPC分类号: H01L21/336 H01L29/78

    摘要: According to one embodiment, a method for manufacturing a semiconductor device includes forming trenches in a first side of a semiconductor material and forming a thick oxide layer on the trenches and on the first side. A part of the first side and the trenches is masked using a first mask, and the semiconductor material is doped by implantation through the thick oxide layer while the first mask is present. At least part of the thick oxide layer is removed while the first mask remains.

    摘要翻译: 根据一个实施例,一种用于制造半导体器件的方法包括:在半导体材料的第一侧形成沟槽,并在沟槽和第一侧上形成厚的氧化物层。 使用第一掩模掩模第一侧面和沟槽的一部分,并且通过在第一掩模存在的情况下通过厚氧化物层的注入来掺杂半导体材料。 当第一掩模残留时,去除厚氧化物层的至少一部分。

    Semiconductor device with trench transistors and method for manufacturing such a device
    6.
    发明授权
    Semiconductor device with trench transistors and method for manufacturing such a device 有权
    具有沟槽晶体管的半导体器件及其制造方法

    公开(公告)号:US07601596B2

    公开(公告)日:2009-10-13

    申请号:US11600422

    申请日:2006-11-16

    IPC分类号: H01L21/336

    摘要: According to one embodiment, a method for manufacturing a semiconductor device includes forming trenches in a first side of a semiconductor material and forming a thick oxide layer on the trenches and on the first side. A part of the first side and the trenches is masked using a first mask, and the semiconductor material is doped by implantation through the thick oxide layer while the first mask is present. At least part of the thick oxide layer is removed while the first mask remains.

    摘要翻译: 根据一个实施例,一种用于制造半导体器件的方法包括:在半导体材料的第一侧形成沟槽,并在沟槽和第一侧上形成厚的氧化物层。 使用第一掩模掩模第一侧面和沟槽的一部分,并且通过在第一掩模存在的情况下通过厚氧化物层的注入来掺杂半导体材料。 当第一掩模残留时,去除厚氧化物层的至少一部分。

    MOS transistor device
    10.
    发明授权
    MOS transistor device 有权
    MOS晶体管器件

    公开(公告)号:US07612408B2

    公开(公告)日:2009-11-03

    申请号:US10996849

    申请日:2004-11-24

    IPC分类号: H01L29/94

    摘要: The invention relates to a MOS transistor device of the trench type, in which, in a semiconductor region of a first conductivity type, within a deep gate trench extending in the vertical direction of the semiconductor region, a vertical gate electrode and a gate oxide with a field plate step insulating the latter are formed and, in an adjoining mesa region outside and laterally with respect to the deep trench, at the upper section thereof, a source electrode region of the first conductivity type and a body region of a second conductivity type with one or a plurality of assigned body contact are formed, a drain electrode region of the first conductivity type lying opposite the deep trench in the vertical direction. The MOS transistor has a deep body reinforcement of the second conductivity type below the body region at the location of the body contact, said body reinforcement lying deeper than the field plate step.

    摘要翻译: 本发明涉及一种沟槽型的MOS晶体管器件,其中在第一导电类型的半导体区域内,沿着半导体区域的垂直方向延伸的深栅极沟槽内的垂直栅电极和栅极氧化物 形成绝缘后的场板台阶,并且在其相对于深沟槽的外侧和横向相邻的台面区域的上部形成有第一导电类型的源电极区域和第二导电类型的体区域 其中形成有一个或多个分配的身体接触,所述第一导电类型的漏电极区域在垂直方向上与所述深沟槽相对。 MOS晶体管在身体接触位置处具有在身体区域下方的第二导电类型的深体增强,所述主体加强物比现场板台阶更深。