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1. 发明申请

WO2004073040A2 DESTRUCTIVE ELECTRICAL TRANSIENT PROTECTION 审中-公开
标题翻译：破坏性电气瞬态保护
公开(公告)号：WO2004073040A2
公开(公告)日：2004-08-26
申请号：PCT/US2004004211
申请日：2004-02-12
申请人： MEDTRONIC INC , MAY JAMES T , TYLER LARRY E
发明人： MAY JAMES T , TYLER LARRY E
IPC分类号： H01L27/02 , H01L
CPC分类号： H01L27/0266
摘要： A protection for ICs against ESD transients includes a circuit with a master circuit driving a slave circuit. The master circuit responds to ESD voltage V(t). The slave circuit comprises parallel shunt devices having common inputs. The output of the master circuit is coupled to the common inputs. As V(t) increases the master circuit applies a portion of V(t) to the input of the slave circuit shunt devices. The threshold voltage Vt1 at which the slave circuit shunt devices would otherwise turn on to a lower value Vt1' closer to the holding voltage Vh of the shunt devices. All of the slave circuit devices turn on substantially simultaneously at about Vt1' close to Vh, thereby shunting the ESD transient to ground at a lower value of V(t). The master and slave circuits are inactive during normal IC operation.
摘要翻译：针对ESD瞬变的IC的保护包括具有驱动从电路的主电路的电路。主电路响应ESD电压V（t）。从电路包括具有公共输入的并行分流装置。主电路的输出耦合到公共输入端。当V（t）增加时，主电路将V（t）的一部分施加到从电路并联装置的输入端。从电路分流器件的阈值电压Vt1否则将导通到更接近分流器件的保持电压Vh的较低值Vt1'。所有从电路器件大致同时接近Vt1'接近Vh，从而以较低的V（t）值将ESD瞬变分流到地。主电路和从电路在正常IC操作期间不起作用。

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