集成电路互连线串扰的模型与分析

Interconnect Crosstalk Model and Analysis for Integrated Circuits

针对集成电路中互连线之间的串扰问题,建立了一个基于电阻和电容的串扰分析模型,给出了干扰信号为线性倾斜信号时串扰的时域响应公式,并得出了串扰峰值的估算公式,明确了干扰信号上升沿对串扰的影响。利用该公式,能对全局互连性能的影响做出正确的估计,在互连布局前预先进行路由规划和资源选择。

In allusion to the crosstalk of interconnect lines in integrated circuit, a model for crosstalk analyzing, including the effect of resistance and capacitance is built up. The time- domain respondence of crosstalk is presented, under the condition that the interferential signal is a linear ramp input. Then, an estimation formula for interconnect crosstalkrs peak is derived. It also indicates the impact on crosstalk by the rising edge of the aggressive signal. With the formula, the impact to the interconnect performance could be estimated correctly, router programming and resource selection could also be implemented before layout.