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IEICE TRANSACTIONS on Fundamentals

An Effective Model of the Overshooting Effect for Multiple-Input Gates in Nanometer Technologies

Li DING, Zhangcai HUANG, Atsushi KUROKAWA, Jing WANG, Yasuaki INOUE

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Summary :

With the scaling of CMOS technology into the nanometer regime, the overshooting effect is more and more obvious and has a significant influence to gate delay and power consumption. Recently, researchers have already proposed the overshooting effect models for an inverter. However, the accurate overshooting effect model for multiple-input gates is seldom presented and the existing technology to reduce a multiple-input gate to an inverter is not useful when modeling the overshooting effect for multiple-input gates. Therefore, modeling the overshooting effect for multiple-input gates is proposed in this paper. Firstly, a formula-based model is presented for the overshooting time of 2-input NOR gate. Then, more complicated methods are given to calculate the overshooting time of 3-input NOR gate and other multiple-input gates. The proposed model is verified to have a good agreement, within 3.4% error margin, compared with SPICE simulation results using CMOS 32nm PTM model.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E97-A No.5 pp.1059-1074
Publication Date
2014/05/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E97.A.1059
Type of Manuscript
PAPER
Category
VLSI Design Technology and CAD

Authors

Li DING
  Waseda University
Zhangcai HUANG
  Waseda University
Atsushi KUROKAWA
  Waseda University
Jing WANG
  Waseda University
Yasuaki INOUE
  Waseda University

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