| 摘要 |
The semiconductor integrated circuit device includes a plurality of grid-like wiring structures 150 arranged as unit regions in an entire circuit area and having the same shape as a clock wiring structure, respectively; a first wiring structure in which the wiring paths from an clock input 110 to the respective grid-like wiring structures 150 are connected with substantially equal lengths and a common buffer circuit 120 or buffer circuits with the same kind and the same number of stages and clock gating circuits 140 are inserted in the same order in the respective wiring paths; and a second wiring structure connecting a clock synchronizing circuit to the grid-like wiring structure with the shortest length in each unit region. The clock is gate-controlled by a clock control signal separately supplied to the clock gating circuit.
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