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    • 1. 发明申请
    • SEMICONDUCTOR DEVICE AND METHOD OF FORMING A SEMICONDUCTOR DEVICE
    • 半导体器件及形成半导体器件的方法
    • WO2008084278A1
    • 2008-07-17
    • PCT/IB2007/000582
    • 2007-01-10
    • FREESCALE SEMICONDUCTOR, INC.EVGUENIY, Stefanov NDERAM, IvanaREYNES, Jean-Michel
    • EVGUENIY, Stefanov NDERAM, IvanaREYNES, Jean-Michel
    • H01L29/78H01L21/336H01L29/06H01L29/423
    • H01L29/66719H01L29/0623H01L29/0634H01L29/42372H01L29/66712H01L29/7395H01L29/7811H01L29/8083
    • A method of forming a semiconductor device having an active area (2) and a termination area (3) surrounding the active area comprises providing a semiconductor substrate (4), providing a semiconductor layer (6) of a first conductivity type over the semiconductor substrate and forming a mask layer (52) over the semiconductor layer. The mask layer (52) outlines at least two portions (54, 56) of a surface of the semiconductor layer: a first outlined portion (54) outlining a floating region (8) in the active area (2) and a second outlined portion (56) outlining a termination region (12) in the termination area (3). Dopants of a second conductivity type are provided to the first (54) and second (56) outlined portions so as to provide a floating region (8) of the second conductivity type buried in the semiconductor layer (6) in the active area (2) and a first termination region (12) of the second conductivity type buried in the semiconductor layer (6) in the termination area (3) of the semiconductor device.
    • 形成具有有源区域(2)和围绕有源区域的端接区域(3)的半导体器件的方法包括提供半导体衬底(4),在半导体衬底上提供第一导电类型的半导体层(6) 以及在所述半导体层上形成掩模层(52)。 掩模层(52)概述半导体层的表面的至少两个部分(54,56):概述有源区域(2)中的浮动区域(8)的第一轮廓部分(54)和第二轮廓部分 (56)概述了终止区域(3)中的终止区域(12)。 第二导电类型的掺杂剂被提供给第一(54)和第二(56)轮廓部分,以便提供掩埋在有源区域(2)中的半导体层(6)中的第二导电类型的浮动区域(8) )和埋在半导体器件的端接区域(3)中的半导体层(6)中的第二导电类型的第一端接区域(12)。