A Non-Iterative Method for Calculating the Effective Capacitance of CMOS Gates with Interconnect Load Effect
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概要
- 論文の詳細を見る
Gate delay evaluation is always a vital concern for high-performance digital VLSI designs. As the feature size of VLSIs decreases to the nano-meter region, the work to obtain an accurate gate delay value becomes more difficult and time consuming than ever. The conventional methods usually use iterative algorithms to ensure the accuracy of the effective capacitance Ceff, which is usually used to compute the gate delay with interconnect loads and to capture the output signal shape of the real gate response. Accordingly, the efficiency is sacrificed. In this paper, an accurate and efficient approach is proposed for gate delay estimation. With the linear relationship of gate output time points and Ceff, a polynomial approximation is used to make the nonlinear effective capacitance equation be solved without iterative method. Compared to the conventional methods, the proposed method improves the efficiency of gate delay calculation. Meanwhile, experimental results show that the proposed method is in good agreement with SPICE results and the average error is 2.8%.
- （社）電子情報通信学会の論文
- 2011-05-01
著者
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Huang Zhangcai
Research Center Of Information Production And Systems Waseda University
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JIANG Minglu
Graduate School of Production, Information and Systems, Waseda University
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HUANG Zhangcai
Fukuoka Industry, Science and Technology Foundation
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Jiang Minglu
Graduate School Of Information Production And Systems Waseda University
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Inoue Yasuaki
Graduate School Of Information Production And Systems Waseda University
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Inoue Yasuaki
Graduate School Of Ips Waseda University
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Kurokawa Atsushi
Sanyo Electric Co. Ltd.
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Li Qiang
Graduate Student Department Of Civil Engineering Gunma University 1-5-1 Tenjin-cho Kiryu City Gunma
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Lin Bin
Graduate School Of Production Information And Systems Waseda University
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Huang Zhangcai
Fukuoka Industry Science And Technology Foundation
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Li Qiang
Graduate School Of Production Information And Systems Waseda University
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Kurokawa Atsushi
Sanyo Electric Co. Ltd
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