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    • 8. 发明授权
    • RC-triggered power clamp suppressing negative mode electrostatic discharge stress
    • RC触发功率钳位抑制负模式静电放电应力
    • US07518845B2
    • 2009-04-14
    • US11422608
    • 2006-06-07
    • Robert J. Gauthier, Jr.Dimitrios K. KontosJunjun LiSouvick MitraChristopher S. Putnam
    • Robert J. Gauthier, Jr.Dimitrios K. KontosJunjun LiSouvick MitraChristopher S. Putnam
    • H02H9/00H02H1/00
    • H02H9/046
    • An electrostatic discharge (ESD) power clamp circuit including a RC-delay element coupled to a plurality of serialized inverter elements with a power clamp element and an ESD-triggered keeper device coupled to the plurality of inverters. During negative mode ESD events, the ESD-triggered keeper device is activated and assists the power clamp element to pull up and strongly conduct current to protect the circuit. Additionally, a method of ESD protection in a circuit is provided. The method includes coupling a RC-delay element to an input of a plurality of serialized inverter elements, coupling an output of the plurality of serialized inverters with an ESD-triggered keeper device and a power clamp element, triggering the ESD-triggered keeper device to turn on during negative ESD events and conducting current by the power clamp element with assistance of the ESD-triggered keeper device to protect the circuit as a result of negative ESD events.
    • 一种静电放电(ESD)功率钳位电路,其包括耦合到多个串联反相器元件的RC延迟元件,其具有耦合到所述多个逆变器的功率钳位元件和ESD触发的保持器装置。 在负模式ESD事件期间,ESD触发的保护装置被激活,并且帮助电源钳位元件上拉并强烈地传导电流以保护电路。 另外,提供了电路中ESD保护的方法。 该方法包括将RC延迟元件耦合到多个串联反相器元件的输入端,将多个串联反相器的输出与ESD触发的保持器装置和功率钳位元件耦合,将ESD触发的保持器装置触发 在ESD ESD事件期间接通电源,并通过ESD触发的保护装置的辅助,通过电源钳位元件传导电流,以保护电路由于负ESD事件。