| 摘要 |
The parasitic capacitance coupled to a signal line is simply proportional to the length of the signal line when the signal line is longer than a critical length, and an estimation of the parasitic capacitance is branched into two courses, i.e., a multiplication of a unit capacitance by the length of a signal line and an accumulation of parasitic capacitances coupled to parts of the signal line depending upon the length so that the estimation is completed within a short time.
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