SEMICONDUCTOR DEVICE
    3.
    发明申请

    公开(公告)号:US20210082906A1

    公开(公告)日:2021-03-18

    申请号:US16575091

    申请日:2019-09-18

    Abstract: A semiconductor device includes a first diode, a second diode, a clamp circuit and a third diode. The first diode is coupled between an input/output (I/O) pad and a first voltage terminal. The second diode is coupled with the first diode, the I/O pad and a second voltage terminal. The clamp circuit is coupled between the first voltage terminal and the second voltage terminal. The second diode and the clamp circuit are configured to direct a first part of an electrostatic discharge (ESD) current flowing between the I/O pad and the first voltage terminal. The third diode, coupled to the first voltage terminal, and the second diode include a first semiconductor structure configured to direct a second part of the ESD current flowing between the I/O pad and the first voltage terminal.

    BIDIRECTIONAL DUAL-SCR CIRTCUIT FOR ESD PROTECTION
    5.
    发明申请
    BIDIRECTIONAL DUAL-SCR CIRTCUIT FOR ESD PROTECTION 审中-公开
    双向可控硅电路防静电保护

    公开(公告)号:US20140217461A1

    公开(公告)日:2014-08-07

    申请号:US14251670

    申请日:2014-04-14

    CPC classification number: H01L27/0262

    Abstract: An ESD protection circuit includes at least a first and a second silicon controlled rectifier (SCR) circuits. The first SCR circuit is coupled between the pad and the positive power supply terminal. The second SCR circuit is coupled between the pad and the ground terminal. At least one of the SCR circuits is configured to selectively provide a short or relatively conductive electrical path between the pad and one of the positive power supply terminal and the ground terminal.

    Abstract translation: ESD保护电路至少包括第一和第二可控硅整流器(SCR)电路。 第一SCR电路耦合在焊盘和正电源端子之间。 第二SCR电路耦合在焊盘和接地端子之间。 SCR电路中的至少一个被配置为选择性地在焊盘和正电源端子和接地端子之一之间提供短路或相对导电的电路径。

    ELECTROSTATIC DISCHARGE (ESD) ARRAY WITH CIRCUIT CONTROLLED SWITCHES

    公开(公告)号:US20240321781A1

    公开(公告)日:2024-09-26

    申请号:US18731021

    申请日:2024-05-31

    CPC classification number: H01L23/60 H01L27/0266 H01L27/0292 H02H9/046

    Abstract: An electrostatic discharge (ESD) protection apparatus and method for fabricating the same are disclosed herein. In some embodiments, the ESD protection apparatus comprises: an internal circuit formed in a first wafer; an array of electrostatic discharge (ESD) circuits formed in a second wafer, wherein the ESD circuits include a plurality of ESD protection devices each coupled to a corresponding switch and configured to protect the internal circuit from a transient ESD event; and a switch controller in the second wafer, wherein the switch controller is configured to control, based on a control signal from the first wafer, each of the plurality of ESD protection devices to be activated or deactivated by the corresponding switch, and wherein the first wafer is bonded to the second wafer.

    SEMICONDUCTOR DEVICE HAVING MULTIPLE ELECTROSTATIC DISCHARGE (ESD) PATHS

    公开(公告)号:US20220208753A1

    公开(公告)日:2022-06-30

    申请号:US17699493

    申请日:2022-03-21

    Abstract: In some embodiments, a semiconductor device is provided, including a first doped region of a first conductivity type configured as a first terminal of a first diode, a second doped region of a second conductivity type configured as a second terminal of the first diode, wherein the first and second doped regions are coupled to a first voltage terminal; a first well of the first conductivity type surrounding the first and second doped regions in a layout view; a third doped region of the first conductivity type configured as a first terminal, coupled to an input/output pad, of a second diode; and a second well of the second conductivity type surrounding the third doped region in the layout view. The second and third doped regions, the first well, and the second well are configured as a first electrostatic discharge path between the I/O pad and the first voltage terminal.

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