Electrostatic discharge (ESD) protection device and forming method thereof

    公开(公告)号:US10978442B2

    公开(公告)日:2021-04-13

    申请号:US16446599

    申请日:2019-06-19

    Abstract: An electrostatic discharge (ESD) protection device and a method thereof are presented. A well is disposed in a substrate. A gate is disposed on the well. A source region and a drain region are located in the well and at two opposite sides of the gate respectively. A first doped region is located in the drain region, wherein the first doped region is electrically connected to the drain region. A second doped region is located in the source region, wherein the second doped region is electrically connected to the source region. A third doped region is located in the well and at a side of the drain region opposite to the gate. A fourth doped region is located in the well and at a side of the source region opposite to the gate, wherein the fourth doped region is electrically connected to the third doped region.

    Semiconductor Device for Electrostatic Discharge Protection

    公开(公告)号:US20170323880A1

    公开(公告)日:2017-11-09

    申请号:US15188962

    申请日:2016-06-21

    CPC classification number: H01L27/0277 H01L29/0623 H01L29/0653

    Abstract: A semiconductor device for electrostatic discharge (ESD) protection includes a doped well, a drain region, a source region, a first doped region and a guard ring. The doped well is disposed in a substrate and has a first conductive type. The drain region is disposed in the doped well and has a second conductive type. The source region is disposed in the doped well and has the second conductive type, wherein the source region is separated from the drain region. The doped region is disposed in the doped well between the drain region and the source region, wherein the doped region has the first conductive type and is in contact with the doped well and the source region. The guard ring is disposed in the doped well and has the first conductive type.

    ELECTROSTATIC DISCHARGE PROTECTION DEVICE
    8.
    发明申请
    ELECTROSTATIC DISCHARGE PROTECTION DEVICE 有权
    静电放电保护装置

    公开(公告)号:US20160358904A1

    公开(公告)日:2016-12-08

    申请号:US14728053

    申请日:2015-06-02

    CPC classification number: H01L27/0274 H01L27/0262 H01L29/0692 H01L29/861

    Abstract: An electrostatic discharge (ESD) protection device includes a first trigger element and a first silicon control rectifier (SCR) element. The first trigger element has a first parasitic bipolar junction transistor (BJT) formed in a substrate. The first SCR element has a second parasitic BJT formed in the substrate. The first parasitic BJT and the second parasitic BJT has a common parasitic bipolar base, and the first parasitic BJT has a trigger voltage substantially lower than that of the second parasitic BJT.

    Abstract translation: 静电放电(ESD)保护装置包括第一触发元件和第一硅控制整流器(SCR)元件。 第一触发元件具有形成在衬底中的第一寄生双极结型晶体管(BJT)。 第一SCR元件在衬底中形成第二寄生BJT。 第一寄生BJT和第二寄生BJT具有公共寄生双极基极,并且第一寄生BJT的触发电压基本上低于第二寄生BJT的触发电压。

    ELECTROSTATIC DISCHARGE PROTECTION CIRCUIT AND ELECTROSTATIC DISCHARGE PROTECTION DEVICE
    9.
    发明申请
    ELECTROSTATIC DISCHARGE PROTECTION CIRCUIT AND ELECTROSTATIC DISCHARGE PROTECTION DEVICE 审中-公开
    静电放电保护电路和静电放电保护装置

    公开(公告)号:US20160204598A1

    公开(公告)日:2016-07-14

    申请号:US14594173

    申请日:2015-01-12

    CPC classification number: H01L27/0259 H01L27/0255 H01L27/0288 H02H9/046

    Abstract: The present invention provides an ESD protection circuit electrically connected between a high voltage power line and a low voltage power line, and the ESD protection circuit includes a bipolar junction transistor (BJT) and a trigger source. A collector of the BJT is electrically connected to the high voltage power line, and an emitter and a base of the BJT are electrically connected to the low voltage power line. The trigger source is electrically connected between the base of the BJT and the high voltage power line.

    Abstract translation: 本发明提供一种电连接在高压电力线和低电压电力线之间的ESD保护电路,该ESD保护电路包括双极结型晶体管(BJT)和触发源。 BJT的集电极电连接到高压电力线,并且BJT的发射极和基极电连接到低压电力线。 触发源电连接在BJT的基极和高压电源线之间。

    Fin type electrostatic discharge protection device
    10.
    发明授权
    Fin type electrostatic discharge protection device 有权
    翅式静电放电保护装置

    公开(公告)号:US09368484B1

    公开(公告)日:2016-06-14

    申请号:US14723482

    申请日:2015-05-28

    Abstract: A fin type ESD protection device includes at least one first fin, at least one second fin, and at least one gate structure. The first fin is disposed on a semiconductor substrate, and a source contact contacts the first fin. The second fin is disposed on the semiconductor substrate, and a drain contact contacts the second fin. The first fin and the second fin extend in a first direction respectively, and the first fin is separated from the second fin. The gate structure is disposed between the source contact and the drain contact. The first fin is separated from the drain contact, and the second fin is separated from the source contact.

    Abstract translation: 翅片型ESD保护装置包括至少一个第一鳍片,至少一个第二鳍片和至少一个栅极结构。 第一翅片设置在半导体衬底上,源极触点接触第一鳍片。 第二鳍片设置在半导体衬底上,漏极接触件接触第二鳍片。 第一鳍片和第二鳍片分别在第一方向上延伸,并且第一鳍片与第二鳍片分离。 栅极结构设置在源极触点和漏极触点之间。 第一鳍片与漏极接触部分开,第二鳍片与源极接触部分离开。

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