| 摘要 |
PROBLEM TO BE SOLVED: To improve a slew rate without changing a netlist in layout design of a semiconductor integrated circuit including a network with many branches. SOLUTION: The layout design method is provided with a step S2 of inputting the netlist including a first circuit outputting a signal and a plurality of second circuits operating on the basis of the signal outputted from the first circuit, a step S 3 of carrying out automatic arrangement and wiring of a circuit included in the netlist so that an output terminal of the first circuit is connected to an input terminal of the second circuit by wiring having at least one branch point on the basis of the netlist, and a step S4 of respectively inserting a plurality of buffer circuits within a predetermined distance from any one of the branch points between at least one branch point and the input terminals of the plurality of second circuits. COPYRIGHT: (C)2004,JPO&NCIPI
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