Semiconductor device with improved robustness
    2.
    发明授权
    Semiconductor device with improved robustness 有权
    半导体器件具有改进的鲁棒性

    公开(公告)号:US08884360B2

    公开(公告)日:2014-11-11

    申请号:US13404161

    申请日:2012-02-24

    IPC分类号: H01L29/78

    摘要: A semiconductor device includes a first contact in low Ohmic contact with a source region of the device and a first portion of a body region of the device formed in an active area of the device, and a second contact in low Ohmic contact with a second portion of the body region formed in a peripheral area of the device. The minimum width of the second contact at a first surface of the device is larger than the minimum width of the first contact at the first surface so that maximum current density during commutating the semiconductor device is reduced and thus the risk of device damage during hard commutating is also reduced.

    摘要翻译: 半导体器件包括与器件的源极区域的低欧姆接触的第一接触和形成在器件的有源区域中的器件的体区的第一部分,以及与第二部分的低欧姆接触的第二接触 形成在装置的周边区域中的身体区域。 器件第一表面处的第二触点的最小宽度大于第一表面处的第一接触的最小宽度,使得在半导体器件的整流期间的最大电流密度降低,并且因此在硬整流期间器件损坏的风险 也减少了。

    Transistor arrangement with a MOSFET
    3.
    发明授权
    Transistor arrangement with a MOSFET 有权
    具有MOSFET的晶体管布置

    公开(公告)号:US08587059B2

    公开(公告)日:2013-11-19

    申请号:US13092546

    申请日:2011-04-22

    IPC分类号: H01L29/66

    摘要: A semiconductor arrangement includes a MOSFET having a source region, a drift region and a drain region of a first conductivity type, a body region of a second conductivity type arranged between the source region and the drift region, a gate electrode arranged adjacent the body region and dielectrically insulated from the body region by a gate dielectric, and a source electrode contacting the source region and the body region. The semiconductor arrangement further includes a normally-off JFET having a channel region of the first conductivity type that is coupled between the source electrode and the drift region and extends adjacent the body region so that a p-n junction is formed between the body region and the channel region.

    摘要翻译: 半导体装置包括具有第一导电类型的源极区域,漂移区域和漏极区域的MOSFET,设置在源极区域和漂移区域之间的第二导电类型的体区域,邻近体区域布置的栅电极 并通过栅极电介质与体区电介质绝缘,以及与源区和身体区接触的源电极。 该半导体装置还包括常闭JFET,其具有第一导电类型的沟道区,该沟道区耦合在源电极和漂移区之间并且在身体区附近延伸,使得在体区和通道之间形成pn结 地区。

    Method of manufacturing a semiconductor device using a contact implant and a metallic recombination element and semiconductor
    4.
    发明授权
    Method of manufacturing a semiconductor device using a contact implant and a metallic recombination element and semiconductor 有权
    使用接触注入和金属复合元件和半导体器件制造半导体器件的方法

    公开(公告)号:US08558308B1

    公开(公告)日:2013-10-15

    申请号:US13517658

    申请日:2012-06-14

    IPC分类号: H01L29/66

    摘要: In a semiconductor die, source zones of a first conductivity type and body zones of a second conductivity type are formed. Both the source and the body zones adjoin a first surface of the semiconductor die in first sections. An impurity source is provided in contact with the first sections of the first surface. The impurity source is tempered so that atoms of a metallic recombination element diffuse out from the impurity source into the semiconductor die. Then impurities of the second conductivity type are introduced into the semiconductor die to form body contact zones between two neighboring source zones, respectively. The atoms of the metallic recombination element reduce the reverse recovery charge in the semiconductor die. Providing the body contact zones after tempering the platinum source provides uniform and reliable body contacts.

    摘要翻译: 在半导体管芯中,形成第一导电类型的源区和第二导电类型的体区。 在第一部分中源极体区域和主体区域都与半导体管芯的第一表面邻接。 提供与第一表面的第一部分接触的杂质源。 杂质源被回火,使得金属复合元件的原子从杂质源扩散到半导体管芯中。 然后将第二导电类型的杂质引入到半导体管芯中,以在两个相邻源极区之间分别形成接触区。 金属复合元件的原子减少半导体晶片中的反向恢复电荷。 在铂源回火后提供身体接触区域提供均匀可靠的身体接触。

    Silicone Carbide Trench Semiconductor Device
    7.
    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。