Electrical Overstress Protection Circuit
    63.
    发明申请
    Electrical Overstress Protection Circuit 有权
    电气过载保护电路

    公开(公告)号:US20100246076A1

    公开(公告)日:2010-09-30

    申请号:US12632015

    申请日:2009-12-07

    IPC分类号: H02H9/00 G06F17/50

    CPC分类号: H01L27/0251 G06F17/5045

    摘要: A semiconductor circuit for electric overstress (EOS) protection is provided. The semiconductor circuit employs an electrostatic discharge (ESD) protection circuit, which has a resistor-capacitor (RC) time-delay network connected to a discharge capacitor. An electronic component that has voltage snapback property or a diodic behavior is connected to alter the logic state of the gate of the discharge transistor under an EOS event. Particularly, the electronic component is configured to turn on the gate of the discharge capacitor throughout the duration of an electrical overstress (EOS) condition as well as throughout the duration of an ESD event. A design structure may be employed to design or manufacture a semiconductor circuit that provides protection against an EOS condition without time limitation, i.e., without being limited by the time constant of the RC time delay network for EOS events that last longer than 1 microsecond.

    摘要翻译: 提供了一种用于电力过应力(EOS)保护的半导体电路。 半导体电路采用静电放电(ESD)保护电路,其具有连接到放电电容器的电阻 - 电容(RC)延时网络。 连接具有电压骤回特性或二极管行为的电子部件,以改变在EOS事件下放电晶体管的栅极的逻辑状态。 特别地,电子部件被配置成在电应力(EOS)条件以及ESD事件的整个持续时间期间打开放电电容器的栅极。 可以采用设计结构来设计或制造半导体电路,该半导体电路在没有时间限制的情况下提供针对EOS状态的保护,即不受时间长度超过1微秒的EOS事件的RC时间延迟网络的时间常数的限制。

    ELECTROSTATIC DISCHARGE POWER CLAMP WITH IMPROVED ELECTRICAL OVERSTRESS ROBUSTNESS
    64.
    发明申请
    ELECTROSTATIC DISCHARGE POWER CLAMP WITH IMPROVED ELECTRICAL OVERSTRESS ROBUSTNESS 审中-公开
    静电放电电源钳具有改进的电气过载稳定性

    公开(公告)号:US20090268359A1

    公开(公告)日:2009-10-29

    申请号:US12109820

    申请日:2008-04-25

    IPC分类号: H02H9/04

    CPC分类号: H02H9/046

    摘要: An apparatus for protecting an integrated circuit from electrostatic discharge (ESD) and electrical overstress (EOS) events includes a resistor/capacitor (RC) triggering device configured between a pair of power rails; a silicon controlled rectifier (SCR) triggered by the RC triggering device during an ESD event, wherein the SCR, when activated, acts as a power rail voltage clamp; and a field effect transistor (FET) coupled between the RC triggering device and the SCR, wherein the FET serves as an integrated part of the RC triggering device that triggers the SCR during the ESD event; and wherein the FET also operates in a snapback mode to trigger the SCR during an EOS event that is slower in comparison to the ESD event such that the EOS event would not otherwise cause triggering of the SCR via the RC triggering device itself.

    摘要翻译: 用于保护集成电路免受静电放电(ESD)和电过载(EOS)事件的装置包括:在一对电源轨之间配置的电阻/电容器(RC)触发装置; 在ESD事件期间由RC触发装置触发的可控硅整流器(SCR),其中所述SCR在被激活时用作电力轨道电压钳位; 以及耦合在RC触发装置和SCR之间的场效应晶体管(FET),其中所述FET用作在ESD事件期间触发SCR的RC触发装置的集成部分; 并且其中所述FET还以快速恢复模式操作以在与ESD事件相比较慢的EOS事件期间触发SCR,使得EOS事件不会通过RC触发装置本身引起触发SCR。

    LATERAL JUNCTION BREAKDOWN TRIGGERED SILICON CONTROLLED RECTIFIER BASED ELECTROSTATIC DISCHARGE PROTECTION DEVICE
    65.
    发明申请
    LATERAL JUNCTION BREAKDOWN TRIGGERED SILICON CONTROLLED RECTIFIER BASED ELECTROSTATIC DISCHARGE PROTECTION DEVICE 审中-公开
    基于静电放电保护装置的横向断路触发式硅控整流器

    公开(公告)号:US20090026492A1

    公开(公告)日:2009-01-29

    申请号:US11782800

    申请日:2007-07-25

    IPC分类号: H01L29/72

    CPC分类号: H01L29/7436 H01L27/0262

    摘要: The components of a silicon controlled rectifier, which are a p-doped anode, an n-well middle region, a p-well middle region, and an n-doped cathode, are formed along sidewalls and a bottom surface of a shallow trench isolation structure. The p-doped anode and the n-doped cathode are formed directly underneath a top surface of a silicon substrate. A trigger mechanism that provides an instantaneous turn-on current to latch the silicon controlled rectifier to an on-state is also provided. The trigger mechanism provides a temporary surge in the voltage of the p-doped middle region, causing the instantaneous turn-on current to flow from the p-doped middle region to the n-doped cathode. Combined with the proximity of the p-doped anode to the n-doped cathode, the trigger mechanism provides a fast turn on and a short low resistance current path for the electrostatic discharge protection circuit.

    摘要翻译: 作为p型掺杂阳极,n阱中间区域,p阱中间区域和n掺杂阴极的可控硅整流器的部件沿着浅沟槽隔离层的侧壁和底面形成 结构体。 p掺杂阳极和n掺杂阴极直接形成在硅衬底的顶表面下方。 还提供了提供瞬时导通电流以将可控硅整流器锁定到导通状态的触发机构。 触发机制提供p掺杂中间区域的电压的暂时浪涌,导致瞬时导通电流从p掺杂的中间区域流到n掺杂的阴极。 结合p掺杂阳极与n掺杂阴极的接近,触发机制为静电放电保护电路提供快速导通和短路电阻电流路径。

    Electrical overstress protection circuit
    67.
    发明授权
    Electrical overstress protection circuit 有权
    电气过载保护电路

    公开(公告)号:US08363367B2

    公开(公告)日:2013-01-29

    申请号:US12632015

    申请日:2009-12-07

    IPC分类号: H02H9/00

    CPC分类号: H01L27/0251 G06F17/5045

    摘要: A semiconductor circuit for electric overstress (EOS) protection is provided. The semiconductor circuit employs an electrostatic discharge (ESD) protection circuit, which has a resistor-capacitor (RC) time-delay network connected to a discharge capacitor. An electronic component that has voltage snapback property or a diodic behavior is connected to alter the logic state of the gate of the discharge transistor under an EOS event. Particularly, the electronic component is configured to turn on the gate of the discharge capacitor throughout the duration of an electrical overstress (EOS) condition as well as throughout the duration of an ESD event. A design structure may be employed to design or manufacture a semiconductor circuit that provides protection against an EOS condition without time limitation, i.e., without being limited by the time constant of the RC time delay network for EOS events that last longer than 1 microsecond.

    摘要翻译: 提供了一种用于电力过应力(EOS)保护的半导体电路。 半导体电路采用静电放电(ESD)保护电路,其具有连接到放电电容器的电阻 - 电容(RC)延时网络。 连接具有电压骤回特性或二极管行为的电子部件,以改变在EOS事件下放电晶体管的栅极的逻辑状态。 特别地,电子部件被配置成在电应力(EOS)条件以及ESD事件的整个持续时间期间打开放电电容器的栅极。 可以采用设计结构来设计或制造半导体电路,该半导体电路在没有时间限制的情况下提供针对EOS状态的保护,即不受时间长度超过1微秒的EOS事件的RC时间延迟网络的时间常数的限制。