We introduce a Nyquist stability analysis of coupled mixed CNT bundle (MCB) for sub-threshold interconnects. In this analysis, the dependence of relative stability of sub-threshold MCBs with specific and probabilistic distribution of CNTs, on the geometry and probability of metallic CNTs, has been obtained. Using the proposed ABCD model and Nyquist stability criterion for sub-threshold MCBs, we show that, by increasing the diameter of each individual CNT and the length of MCB, the sub-threshold MCB interconnect system becomes more stable, while a densely packed MCB reduces the relative stability. Moreover, the crosstalk impact results in the greater stability of sub-threshold MCB system in comparison to a single interconnect. The crosstalk delay of MCB and composite Cu-MWCNT interconnects is also compared at various lengths. This is, so far, the first instance that such an analysis has been presented for coupled sub-threshold MCB interconnects.

我们介绍了用于亚阈值互连的耦合混合 CNT 束 (MCB) 的奈奎斯特稳定性分析。在该分析中，获得了具有特定和概率分布的 CNT 的亚阈值 MCB 的相对稳定性对金属 CNT 的几何形状和概率的依赖性。使用提议的ABCD亚阈值 MCB 的模型和奈奎斯特稳定性标准，我们表明，通过增加每个单独的 CNT 的直径和 MCB 的长度，亚阈值 MCB 互连系统变得更加稳定，而密集堆积的 MCB 降低了相对稳定性。此外，与单个互连相比，串扰影响导致亚阈值 MCB 系统具有更高的稳定性。MCB 和复合 Cu-MWCNT 互连的串扰延迟也在不同长度下进行了比较。到目前为止，这是对耦合亚阈值 MCB 互连进行此类分析的第一个实例。