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    • 39. 发明申请
    • Semiconductor Device Comprising Electrostatic Discharge Protection Structure
    • 包括静电放电保护结构的半导体器件
    • US20160351557A1
    • 2016-12-01
    • US15167141
    • 2016-05-27
    • Infineon Technologies Dresden GmbH
    • Joachim Weyers
    • H01L27/02H01L23/367H01L29/06H01L29/78H01L29/10
    • H01L27/0255H01L21/2236H01L21/2257H01L23/3677H01L29/0634H01L29/0696H01L29/1095H01L29/7805H01L29/7811
    • A semiconductor device includes a semiconductor body having first and second opposing surfaces, a first isolation layer on the first surface of the semiconductor body, and an electrostatic discharge protection structure. The electrostatic discharge protection structure includes a diode structure on the first isolation layer, a first terminal and a second terminal. The diode structure includes a polysilicon layer having first regions and at least one second region of opposite conductivity type alternatingly arranged along a first lateral direction between the first terminal and the second terminal. The diode structure extends from an electrostatic discharge protection part into an edge termination part along a second lateral direction. A first breakdown voltage associated with the diode structure in the electrostatic discharge protection part is smaller than a second breakdown voltage associated with the diode structure in the edge termination part.
    • 半导体器件包括具有第一和第二相对表面的半导体本体,半导体本体的第一表面上的第一隔离层和静电放电保护结构。 静电放电保护结构包括在第一隔离层上的二极管结构,第一端子和第二端子。 二极管结构包括具有第一区域和至少一个相反导电类型的第二区域的多晶硅层,沿着第一横向方向在第一端子和第二端子之间交替布置。 二极管结构从静电放电保护部分沿着第二横向方向延伸到边缘终端部分。 与静电放电保护部分中的二极管结构相关联的第一击穿电压小于与边缘终端部分中的二极管结构相关联的第二击穿电压。