HIGH-VOLTAGE SUPER JUNCTION BY TRENCH AND EPITAXIAL DOPING
    15.
    发明申请
    HIGH-VOLTAGE SUPER JUNCTION BY TRENCH AND EPITAXIAL DOPING 有权
    通过TRENCH和EPITAXIAL DOPING进行高电压超级连接

    公开(公告)号:US20150061007A1

    公开(公告)日:2015-03-05

    申请号:US14011991

    申请日:2013-08-28

    Abstract: A high-voltage super junction device is disclosed. The device includes a semiconductor substrate region having a first conductivity type and having neighboring trenches disposed therein. The neighboring trenches each have trench sidewalls and a trench bottom surface. A region having a second conductivity type is disposed in or adjacent to a trench and meets the semiconductor substrate region at a p-n junction. A gate electrode is formed on the semiconductor substrate region and electrically is electrically isolated from the semiconductor substrate region by a gate dielectric. A body region having the second conductivity type is disposed on opposite sides of the gate electrode near a surface of the semiconductor substrate. A source region having the first conductivity type is disposed within in the body region on opposite sides of the gate electrode near the surface of the semiconductor substrate.

    Abstract translation: 公开了一种高压超导装置。 该器件包括具有第一导电类型并且其中设置有相邻沟槽的半导体衬底区域。 相邻的沟槽各具有沟槽侧壁和沟槽底面。 具有第二导电类型的区域设置在沟槽中或与沟槽相邻并且在p-n结处与半导体衬底区域相遇。 栅极电极形成在半导体衬底区域上,并通过栅极电介质与半导体衬底区域电隔离。 具有第二导电类型的主体区域设置在靠近半导体衬底的表面的栅电极的相对侧上。 具有第一导电类型的源极区域设置在靠近半导体衬底的表面的栅电极的相对侧的体区内。

    PARTIAL SOI ON POWER DEVICE FOR BREAKDOWN VOLTAGE IMPROVEMENT
    19.
    发明申请
    PARTIAL SOI ON POWER DEVICE FOR BREAKDOWN VOLTAGE IMPROVEMENT 有权
    用于断电电压改进的功率器件的部分SOI

    公开(公告)号:US20140322871A1

    公开(公告)日:2014-10-30

    申请号:US14330092

    申请日:2014-07-14

    Abstract: Some embodiments of the present disclosure relate to a method to increase breakdown voltage of a power device. A power device is formed on a silicon-on-insulator (SOI) wafer made up of a device wafer, a handle wafer, and an intermediate oxide layer. A recess is formed in a lower surface of the handle wafer to define a recessed region of the handle wafer. The recessed region of the handle wafer has a first handle wafer thickness, which is greater than zero. An un-recessed region of the handle wafer has a second handle wafer thickness, which is greater than the first handle wafer thickness. The first handle wafer thickness of the recessed region provides a breakdown voltage improvement for the power device.

    Abstract translation: 本公开的一些实施例涉及增加功率器件的击穿电压的方法。 功率器件形成在由器件晶片,手柄晶片和中间氧化物层构成的绝缘体上硅(SOI)晶片上。 在处理晶片的下表面上形成凹口,以限定处理晶片的凹陷区域。 处理晶片的凹陷区域具有大于零的第一处理晶片厚度。 处理晶片的未凹陷区域具有大于第一处理晶片厚度的第二处理晶片厚度。 凹陷区域的第一处理晶片厚度为功率器件提供了击穿电压的改善。

    Semiconductor device having super junction structure and method for manufacturing the same
    20.
    发明授权
    Semiconductor device having super junction structure and method for manufacturing the same 有权
    具有超结结构的半导体器件及其制造方法

    公开(公告)号:US09564515B2

    公开(公告)日:2017-02-07

    申请号:US14444861

    申请日:2014-07-28

    Abstract: A semiconductor device having a super junction structure includes a substrate, an epitaxial layer of a first conductivity type, a first trench, a first doped region of a second conductivity type opposite to the first conductivity type, a second trench and a second doped region of the first conductivity type. The epitaxial layer of the first conductivity type is over the substrate. The first trench is in the epitaxial layer. The first doped region of the second conductivity type is in the epitaxial layer and surrounds the first trench. The second trench is in the epitaxial layer and separated from the first trench. The second doped region of the first conductivity type is in the epitaxial layer and surrounds the second trench. The second doped region has a dopant concentration greater than a dopant concentration of the epitaxial layer. A method for manufacturing the semiconductor device is also provided.

    Abstract translation: 具有超结结构的半导体器件包括衬底,第一导电类型的外延层,第一沟槽,与第一导电类型相反的第二导电类型的第一掺杂区,第二沟槽和第二掺杂区 第一种导电类型。 第一导电类型的外延层在衬底上。 第一沟槽在外延层中。 第二导电类型的第一掺杂区域在外延层中并围绕第一沟槽。 第二沟槽在外延层中并与第一沟槽分离。 第一导电类型的第二掺杂区域在外延层中并且包围第二沟槽。 第二掺杂区域的掺杂浓度大于外延层的掺杂剂浓度。 还提供了一种用于制造半导体器件的方法。

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