Wafer bonding for power devices
    31.
    发明授权
    Wafer bonding for power devices 失效
    功率器件的晶圆接合

    公开(公告)号:US5654226A

    公开(公告)日:1997-08-05

    申请号:US305435

    申请日:1994-09-07

    摘要: A method of processing wafers for power devices in which the wafer has a desired thickness less than the thickness necessary to provide mechanical support. A silicon wafer of the desired thickness is bonded to a carrier wafer until most, if not all, of the processing steps are completed, after which the silicon wafer is separated from its carrier wafer. The carrier wafer may serve as a diffusion source, and the areas of the bonding of the silicon wafer to the carrier wafer may be selected consistent with the devices or groups of devices to be formed by the separation of the two wafers. The carrier wafer may by bonded to the device wafer over nearly the full surface area and the carrier wafer remain a part of the final device.

    摘要翻译: 一种处理用于功率器件的晶片的方法,其中晶片具有小于提供机械支撑所需的厚度的期望厚度。 将期望厚度的硅晶片结合到载体晶片,直到大多数(如果不是全部)处理步骤完成,之后硅晶片与其载体晶片分离。 载体晶片可以用作扩散源,并且硅晶片与载体晶片的接合区域可以与要通过分离两个晶片而形成的器件或器件组一致。 载体晶片可以通过在几乎整个表面积上结合到器件晶片,并且载体晶片保留在最终器件的一部分。

    Optically triggered semiconductor device and method for making the same
    33.
    发明授权
    Optically triggered semiconductor device and method for making the same 有权
    光学触发半导体器件及其制造方法

    公开(公告)号:US08691634B2

    公开(公告)日:2014-04-08

    申请号:US13960971

    申请日:2013-08-07

    IPC分类号: H01L21/332

    摘要: A thyristor device includes a semiconductor body and a conductive anode. The semiconductor body has a plurality of doped layers forming a plurality of dopant junctions and includes an optical thyristor, a first amplifying thyristor, and a switching thyristor. The conductive anode is disposed on a first side of the semiconductor body. The optical thyristor is configured to receive incident radiation to generate a first electric current, and the first amplifying thyristor is configured to increase the first electric current from the optical thyristor to at least a threshold current. The switching thyristor switches to the conducting state in order to conduct a second electric current from the anode and through the semiconductor body.

    摘要翻译: 晶闸管器件包括半导体本体和导电阳极。 半导体本体具有形成多个掺杂剂结的多个掺杂层,并且包括光学晶闸管,第一放大晶闸管和开关晶闸管。 导电阳极设置在半导体本体的第一侧上。 光晶闸管被配置为接收入射辐射以产生第一电流,并且第一放大晶闸管被配置为将来自光晶闸管的第一电流增加到至少阈值电流。 开关晶闸管切换到导通状态,以便从阳极和半导体本体传导第二电流。

    System for transient voltage suppressors
    36.
    发明授权
    System for transient voltage suppressors 有权
    瞬态电压抑制器系统

    公开(公告)号:US08530902B2

    公开(公告)日:2013-09-10

    申请号:US13281638

    申请日:2011-10-26

    IPC分类号: H01L29/15

    摘要: A method of forming a silicon carbide transient voltage suppressor (TVS) assembly and a system for a transient voltage suppressor (TVS) assembly are provided. The TVS assembly includes a semiconductor die in a mesa structure that includes a first layer of a first wide band gap semiconductor having a conductivity of a first polarity, a second layer of the first or a second wide band gap semiconductor having a conductivity of a second polarity coupled in electrical contact with the first layer wherein the second polarity is different than the first polarity. The TVS assembly also includes a third layer of the first, the second, or a third wide band gap semiconductor having a conductivity of the first polarity coupled in electrical contact with the second layer. The layer having a conductivity of the second polarity is lightly doped relative to the layers having a conductivity of the first polarity.

    摘要翻译: 提供了形成碳化硅瞬态电压抑制器(TVS)组件的方法和用于瞬态电压抑制器(TVS)组件的系统。 TVS组件包括台面结构中的半导体管芯,其包括具有第一极性的导电率的第一宽带隙半导体的第一层,具有第二极导电率的第一或第二宽带隙半导体的第二层 极性与第一层电接触,其中第二极性不同于第一极性。 TVS组件还包括具有与第二层电接触的第一极性的导电性的第一,第二或第三宽带隙半导体的第三层。 相对于具有第一极性的导电性的层,具有第二极性的导电性的层被轻掺杂。

    Semiconductor device and method of making the same
    39.
    发明授权
    Semiconductor device and method of making the same 有权
    半导体器件及其制造方法

    公开(公告)号:US08278711B2

    公开(公告)日:2012-10-02

    申请号:US12952418

    申请日:2010-11-23

    IPC分类号: H01L29/66

    摘要: A substrate having semiconductor material and a surface that supports a gate electrode and defines a surface normal direction is provided. The substrate can include a drift region including a first dopant type. A well region can be disposed adjacent to the drift region and proximal to the surface, and can include a second dopant type. A termination extension region can be disposed adjacent to the well region and extend away from the gate electrode, and can have an effective concentration of second dopant type that is generally less than that in the well region. An adjust region can be disposed between the surface and at least part of the termination extension region. An effective concentration of second dopant type may generally decrease when moving from the termination extension region into the adjust region along the surface normal direction.

    摘要翻译: 提供具有半导体材料的基板和支撑栅电极并限定表面法线方向的表面。 衬底可以包括包括第一掺杂剂类型的漂移区域。 阱区域可以布置成与漂移区域相邻并且靠近表面,并且可以包括第二掺杂剂类型。 端接延伸区域可以邻近阱区域设置并且远离栅电极延伸,并且可以具有通常小于阱区域中的第二掺杂剂类型的有效浓度。 可以在表面和终止延伸区域的至少一部分之间设置调整区域。 当从终止延伸区域沿着表面法线方向移动到调整区域中时,第二掺杂剂类型的有效浓度通常可以降低。