Self-Biasing ESD Power Clamp
    1.
    发明公开

    公开(公告)号:US20240332958A1

    公开(公告)日:2024-10-03

    申请号:US18193684

    申请日:2023-03-31

    IPC分类号: H02H9/04 H02H1/00

    CPC分类号: H02H9/046 H02H1/0007

    摘要: Systems and methods are provided for a self-biasing electro-static discharge (ESD) power clamp. The ESD power clamp comprises an ESD detection circuit coupled to a positive supply voltage node and a ground voltage node. The ESD detection circuit includes a first node having a first voltage level during a standby mode and a second voltage level during an ESD mode. The ESD power clamp further comprises a discharge circuit coupled to the ESD detection circuit that includes a plurality of discharge elements a self-biasing node having a third voltage level during the standby mode. The third voltage level provides a voltage drop across at least one of the discharge elements that is less than the first voltage level. The discharge circuit provides a high-impedance path during the standby mode and a low-impedance path during the ESD mode.

    Electrostatic discharge circuit and method of forming the same

    公开(公告)号:US12046567B2

    公开(公告)日:2024-07-23

    申请号:US17213630

    申请日:2021-03-26

    摘要: A semiconductor device includes a device wafer having a first side and a second side. The first and second sides are opposite to each other. The semiconductor device includes a plurality of first interconnect structures disposed on the first side of the device wafer. The semiconductor device includes a plurality of second interconnect structures disposed on the second side of the device wafer. The plurality of second interconnect structures comprise a first power rail and a second power rail. The semiconductor device includes a carrier wafer disposed over the plurality of first interconnect structures. The semiconductor device includes an electrostatic discharge (ESD) protection circuit formed over a side of the carrier wafer. The ESD protection circuit is operatively coupled to the first and second power rails.

    Electrostatic discharge (ESD) protection circuit and method of operating the same

    公开(公告)号:US11862960B2

    公开(公告)日:2024-01-02

    申请号:US18128693

    申请日:2023-03-30

    IPC分类号: H02H3/08 H02H1/00

    CPC分类号: H02H3/08 H02H1/0007

    摘要: An electrostatic discharge (ESD) protection circuit includes a first diode, a second diode, an ESD clamp circuit and a first conductive structure on a backside of a semiconductor wafer, and being coupled to the first voltage supply. The first diode is in the semiconductor wafer, and coupled between an IO pad and a first node. The second diode is in the semiconductor wafer, coupled to the first diode and coupled between the IO pad and a second node. The ESD clamp circuit is in the semiconductor wafer, coupled between the first node and the second node, and further coupled to the first and second diode. The ESD clamp circuit includes a first signal tap region in the semiconductor wafer that is coupled to a first voltage supply. The first diode is coupled to and configured to share the first signal tap region with the ESD clamp circuit.

    Electrostatic discharge protection device

    公开(公告)号:US11756953B2

    公开(公告)日:2023-09-12

    申请号:US17354870

    申请日:2021-06-22

    IPC分类号: H01L27/02 H01L29/06

    摘要: A semiconductor device includes a P-doped well having a first concentration of P-type dopants in the substrate; a P-doped region having a second concentration of P-type dopants in the substrate and extending around a perimeter of the P-doped well; a shallow trench isolation structure (STI) between the P-doped well and the P-doped region; an active area on the substrate, the active area including an emitter region and a collector region; a deep trench isolation structure (DTI) extending through the active area and between the emitter region and the collector region; and an electrical connection between the emitter region and the P-doped region.

    Electrostatic discharge protection
    10.
    发明授权
    Electrostatic discharge protection 有权
    静电放电保护

    公开(公告)号:US09236733B2

    公开(公告)日:2016-01-12

    申请号:US13952417

    申请日:2013-07-26

    IPC分类号: H02H9/04 H01L29/74 H01L27/02

    摘要: A semiconductor device is disclosed that includes a first well of a first conductivity type, a second well of a second conductivity type, a plurality of first regions, a second region and a plurality of electrodes. The first regions are of the first conductivity type and are formed in the second well. The second region is of the second conductivity type and is formed in the first well. Each of the electrodes is formed upon the second well and between adjacent two first regions of the first regions.

    摘要翻译: 公开了一种半导体器件,其包括第一导电类型的第一阱,第二导电类型的第二阱,多个第一区域,第二区域和多个电极。 第一区域是第一导电类型并且形成在第二阱中。 第二区域是第二导电类型并形成在第一阱中。 每个电极形成在第二阱上并且在第一区域的相邻两个第一区域之间。