临近空间单粒子串扰的解析模型

Analytical model of single event crosstalk in near space

随着尺寸不断缩减,串扰对单粒子效应的影响越来越重要.为了量化串扰效应对单粒子瞬态(SET)的影响,基于SET等效电路和互连线的6结点模型,利用所定义的导纳的四种规则,简化计算,推导了单粒子串扰(SEC)的解析模型.通过求导和泰勒公式,导出了串扰电压峰值的表达式.仿真结果显示,该解析模型与SPICE电路的一致性较好,平均相对误差为2.51%,最大误差为5.11%.

With feature size scaling down, the influence of crosstalk on single event effect becomes more important. In order to analytically describe the influence of crosstalk effect on single event transient （SET）, based on the equivalent circuits of SET and 6-node template model for interconnects, by using defined four rules of point admittance to simplify the calculation, the analytical model for single event crosstalk （SEC） is deduced. Through differentiating and Taylor series expansion theorem, the expression for the peak value of crosstalk voltage is achieved. The simulation results show that the analytical model is well consistent with SPICE circuits and average relative error is 2.51%, and max error is 5.11%.