Termination design for high voltage device
    51.
    发明授权
    Termination design for high voltage device 有权
    高压设备终端设计

    公开(公告)号:US08680613B2

    公开(公告)日:2014-03-25

    申请号:US13561300

    申请日:2012-07-30

    IPC分类号: H01L29/76 H01L29/94

    摘要: The present disclosure describes a termination structure for a high voltage semiconductor transistor device. The termination structure is composed of at least two termination zones and an electrical disconnection between the body layer and the edge of the device. A first zone is configured to spread the electric field within the device. A second zone is configured to smoothly bring the electric field back up to the top surface of the device. The electrical disconnection prevents the device from short circuiting the edge of the device. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

    摘要翻译: 本公开描述了一种用于高电压半导体晶体管器件的端接结构。 终端结构由至少两个终端区域和身体层与设备的边缘之间的电断开组成。 第一区被配置成在设备内扩展电场。 第二区域被配置成平滑地将电场返回到设备的顶表面。 电气断开防止设备短路设备的边缘。 要强调的是,该摘要被提供以符合要求抽象的规则,允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是,它不会用于解释或限制权利要求的范围或含义。

    Shielded gate trench MOSFET device and fabrication
    55.
    发明授权
    Shielded gate trench MOSFET device and fabrication 有权
    屏蔽栅沟槽MOSFET器件和制造

    公开(公告)号:US08193580B2

    公开(公告)日:2012-06-05

    申请号:US12583191

    申请日:2009-08-14

    IPC分类号: H01L29/78

    摘要: A semiconductor device embodiment includes a substrate, an active gate trench in the substrate, and an asymmetric trench in the substrate. The asymmetric trench has a first trench wall and a second trench wall, the first trench wall is lined with oxide having a first thickness, and the second trench wall is lined with oxide having a second thickness that is different from the first thickness. Another semiconductor device embodiment includes a substrate, an active gate trench in the substrate; and a source polysilicon pickup trench in the substrate. The source polysilicon pickup trench includes a polysilicon electrode, and top surface of the polysilicon electrode is below a bottom of a body region. Another semiconductor device includes a substrate, an active gate trench in the substrate, the active gate trench has a first top gate electrode and a first bottom source electrode, and a gate runner trench comprising a second top gate electrode and a second bottom source electrode. The second top gate electrode is narrower than the second bottom source electrode.

    摘要翻译: 半导体器件实施例包括衬底,衬底中的有源栅极沟槽和衬底中的不对称沟槽。 非对称沟槽具有第一沟槽壁和第二沟槽壁,第一沟槽壁衬有具有第一厚度的氧化物,并且第二沟槽壁衬有具有不同于第一厚度的第二厚度的氧化物。 另一半导体器件实施例包括衬底,衬底中的有源栅极沟槽; 以及衬底中的源极多晶硅拾取沟槽。 源多晶硅拾取沟槽包括多晶硅电极,并且多晶硅电极的顶表面在身体区域的底部之下。 另一个半导体器件包括衬底,衬底中的有源栅极沟槽,有源栅极沟槽具有第一顶部栅电极和第一底部源极电极,以及包括第二顶部栅电极和第二底部源极电极的栅极流道沟槽。 第二顶栅电极比第二底源电极窄。

    TERMINATION DESIGN FOR HIGH VOLTAGE DEVICE
    59.
    发明申请
    TERMINATION DESIGN FOR HIGH VOLTAGE DEVICE 有权
    高压设备终端设计

    公开(公告)号:US20140027840A1

    公开(公告)日:2014-01-30

    申请号:US13561300

    申请日:2012-07-30

    IPC分类号: H01L29/78 H01L21/336

    摘要: The present disclosure describes a termination structure for a high voltage semiconductor transistor device. The termination structure is composed of at least two termination zones and an electrical disconnection between the body layer and the edge of the device. A first zone is configured to spread the electric field within the device. A second zone is configured to smoothly bring the electric field back up to the top surface of the device. The electrical disconnection prevents the device from short circuiting the edge of the device. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

    摘要翻译: 本公开描述了一种用于高电压半导体晶体管器件的端接结构。 终端结构由至少两个终端区域和身体层与设备的边缘之间的电断开组成。 第一区被配置成在设备内扩展电场。 第二区域被配置成平滑地将电场返回到设备的顶表面。 电气断开防止设备短路设备的边缘。 要强调的是,该摘要被提供以符合要求抽象的规则,允许搜索者或其他读者快速确定技术公开内容的主题。 提交它的理解是,它不会用于解释或限制权利要求的范围或含义。