| 摘要 |
PROBLEM TO BE SOLVED: To provide a wiring method capable of increasing the total capacitance of wiring to be affected by crosstalk noise without adding a new wiring layer. SOLUTION: The wiring method comprises: a crosstalk noise analysis step of calculating a crosstalk noise level on the basis of the earth capacitance of automatically wired signal wiring and a coupling capacitance with adjacent wiring and extracting the signal wiring whose crosstalk noise level exceeds a stipulated value; an additional capacitance value calculation step of calculating the value of an additional capacitance to be added to the total capacitance of the extracted signal wiring in order to make the crosstalk noise level be equal to or lower than the stipulated value; a floating metal wiring addition step of adding floating metal wiring around the signal wiring; and a judgement step of judging whether or not the value of the parasitic capacitance of the floating metal wiring satisfies the capacitance value of the required additional capacitance. COPYRIGHT: (C)2009,JPO&INPIT
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