Electrostatic discharge protection device and manufacturing method thereof

    公开(公告)号:US10068896B1

    公开(公告)日:2018-09-04

    申请号:US15445999

    申请日:2017-03-01

    Abstract: An ESD protection device includes a semiconductor substrate, a well, a gate structure, a first source/drain region, a second source/drain region, a first doped region, and a second doped region. The well is disposed in the semiconductor substrate. The gate structure is disposed on the well. The first source/drain region and the second source/drain region are disposed in the well and disposed at two opposite sides of the gate structure respectively. The first doped region is disposed in the first source/drain region. The second doped region is disposed in the second source/drain region. A conductivity type of the first doped region is complementary to that of the first source/drain region. A conductivity type of the second doped region is complementary to that of the second source/drain region. A conductivity type of the well is complementary to that of the first source/drain region and the second source/drain region.

    Semiconductor device for electrostatic discharge protection and method of forming the same

    公开(公告)号:US09691752B1

    公开(公告)日:2017-06-27

    申请号:US15096234

    申请日:2016-04-11

    CPC classification number: H01L29/0653 H01L27/0277 H01L29/0619 H01L29/7816

    Abstract: An ESD protection device and a method of forming the same, the ESD device includes a substrate, a first doped well, a second doped well, a source and drain regions and a guard ring. The first doped well with a first conductive type is disposed in the substrate. The source and drain regions with the second conductive type are disposed in the first doped well. The guard ring with the first conductive type is also disposed in the first doped well and has a first portion extending along a first direction and a second portion extending along a second direction different from the first direction. The second doped well with the second conductive type is also disposed in the first doped well between the drain region and the second portion of the guard ring to in contact with the drain region in the first direction.

    SEMICONDUCTOR DEVICE
    19.
    发明申请
    SEMICONDUCTOR DEVICE 有权
    半导体器件

    公开(公告)号:US20150137255A1

    公开(公告)日:2015-05-21

    申请号:US14082529

    申请日:2013-11-18

    CPC classification number: H01L27/092 H01L27/0277 H01L27/088

    Abstract: A semiconductor device is described, including a substrate including a first area and a second area, a first MOS element of a first conductivity type in the first area, and a second MOS element of the first conductivity type in the second area. The first area is closer to a pick-up region of the substrate than the second area. The substrate has a second conductivity type. The bottom depth of a first electrical conduction path in the substrate in the first area is smaller than that of a second electrical conduction path in the substrate in the second area.

    Abstract translation: 描述了一种半导体器件,包括包括第一区域和第二区域的衬底,第一区域中的第一导电类型的第一MOS元件和第二区域中的第一导电类型的第二MOS元件。 第一区域比第二区域更靠近基板的拾取区域。 衬底具有第二导电类型。 第一区域中的衬底中的第一导电通路的底部深度小于第二区域中的衬底中的第二导电通路的深度。

    Electrostatic discharge protection semiconductor device

    公开(公告)号:US10672759B2

    公开(公告)日:2020-06-02

    申请号:US16124171

    申请日:2018-09-06

    Abstract: An ESD protection semiconductor device is disclosed. The ESD protection semiconductor device includes a substrate and a gate set disposed on the substrate. A plurality of source fins and a plurality of drain fins are formed in the substrate respectively at two sides of the gate set. At least a first doped fin is formed in the substrate at one side of the gate set the same as the source fins. A plurality of isolation structures are formed in one of the drain fins to define at least a second doped fin in the one of the drain fins. The source fins and the drain fins are of a first conductivity type. The first doped fin is of a second conductivity type that is complementary to the first conductivity type. The first doped fin and the second doped fin are electrically connected to each other.

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