互连线负载的有效电容计算模型

A Model of Computing the Effective Capacitance of Interconnect Load

在大量仿真数据以及当前集成电路设计工艺的基础上,提出了一种简单互连线负载的有效电容计算模型.该模型基于精确的互连线π模型,考虑了互连线电阻对负载互连线的屏蔽作用,并能与目前常用的器件时延公式兼容.实验结果表明,该模型与电路模拟软件SPICE仿真结果相比较误差小于1.2%.

A simple and efficient model was presented for computing the effective capacitance of interconnect load based on simulation and integrated circuit process.The method which is based on accurate π model and accounts for the shielding effect of the interconnect resistance is compatible with the empirical delay model of devices. The experimental results show that the model is accurate and within less than 1.2% error compared with SPICE.