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    • 10. 发明授权
    • Electrical overstress protection circuit
    • 电气过载保护电路
    • US08363367B2
    • 2013-01-29
    • US12632015
    • 2009-12-07
    • John B. Campi, Jr.Shunhua T. ChangKiran V. ChattyRobert J. Gauthier, Jr.Junjun LiMujahid Muhammad
    • John B. Campi, Jr.Shunhua T. ChangKiran V. ChattyRobert J. Gauthier, Jr.Junjun LiMujahid Muhammad
    • H02H9/00
    • H01L27/0251G06F17/5045
    • 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.
    • 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。