| 摘要 |
PROBLEM TO BE SOLVED: To accurately and easily estimate in a short time the effects of a gate overhead of a clock synthesizing part and of power consumption generated in a circuit by automatically creating a CTS (clock tree synthesis) constraint file from clock definition information of STA (static timing analysis) regarding a clock synthesizing method, a semiconductor device and a program. SOLUTION: This clock synthesizing method in layout designing of the semiconductor device by a computer is constituted so as to include an extraction step for extracting by the computer, on the basis of clock information of the circuit, a false path required for splitting clock trees in the circuit so as to be exclusive to each other and not to have overlapping portions and leaf points for leaf-treating the points other than flip-flops existing on the clock trees. COPYRIGHT: (C)2006,JPO&NCIPI
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