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IEICE TRANSACTIONS on transactions

MMAPC: An Effective Mixed-Mode Circuit Simulator Using Dynamic Circuit Partition Process

Ben CHEN, Mahoki ONODA, Mineo KANEKO

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Summary :

With the development of LSI technologies, conventional circuit simulation using only single type of method has become unsatisfactory, i.e. circuit-level analysis based on device model spends much simulation time and relaxation methods have the problems on their accuracy. Therefore, it is necessary to develop the better methods to realize both high-speed and good accuracy. In this paper, a mixed-mode circuit-timing simulation method has been studied. It uses a new kind of automatic circuit partition approach--dynamic circuit partition process based on checking coupling factors between circuit nodes at every time point for better convergence. This method is based on examining the characteristic of circuit equations rather than circuit topology or function blocks. A mixed-mode simulation program--MMAPC for transient analysis of CMOS large-scale circuit has been developed and some simulation examples have been performed. The results show that MMAPC can be more than two orders of magnitude faster than a standard" circuit-level simulator (SPICE-like) while providing comparable waveform accuracy, and has better convergence property than general timing-level simulators.

Publication
IEICE TRANSACTIONS on transactions Vol.E71-E No.4 pp.388-393
Publication Date
1988/04/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
VLSI Design Technology

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