| 摘要 |
PROBLEM TO BE SOLVED: To provide a clock wiring structure which makes it easy to adjust the clock skew. SOLUTION: Along a clock wire 1, a couple of shield wires 2 are arranged on both sides in parallel and along the clock wire 1 and shield wires 2, shield wires 3 are provided below them in parallel. The shield wires 2 and 3 are connected to the ground of a semiconductor integrated circuit. The clock skew is eliminated by adjusting the transmission delay time of a signal in the clock wire 1 by varying the line width of the shield wires 2 and varying the wiring capacitance of the clock wire 1.
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