ITC '10 Proceedings of the 2010 International Conference on Recent Trends in Information, Telecommunication and Computing
Asymptotic waveform evaluation for timing analysis
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Algorithms for non-Hanan-based optimization for VLSI interconnect under a higher-order AWE model
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Fast interval-valued statistical modeling of interconnect and effective capacitance
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
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A general platform to generate the RC, RLC and RLCG models of interconnects using global approximation method, two-port networks, and asymptotic waveform evaluation (AWE) is presented. Using the delay of transmission-line-modeled interconnects from HSPICE as a bench mark, we show that among all 18 models studied, the 驴-configuration of AWE-RLC model yields the best accuracy. To reduce complexity subsequently computational cost without sacrificing accuracy, the AWE-RLC model is mapped to a complex RC model using moment matching. The complex RC model is further mapped to an improved RC model utilizing the principle of charge reservation. The improved RC model is employed to estimate the delay of long interconnects with buffer insertion. As compared with the conventional RC model, the improved RC model reduces the delay of interconnects with buffer insertion, the number of buffers, and the size of the buffer by 20.5, 24, and 32 %, respectively.