| 摘要 |
PURPOSE: A semiconductor memory device is provided to reduce a data transmit error due to coupling by arranging a column selection line as far as possible from a data transmit line and reducing the coupling component between the column selection line and the data transmit line. CONSTITUTION: A plurality of first signal lines are arranged in a first wiring layer. A power line(P) is arranged in the first wiring layer and is allocated to a certain number of a first signal lines(YI1~YI4). A second signal line(LI0) is arranged in a second wiring layer. The power line is arranged to be more contiguous than the first signal line which is contiguous to the second signal line of the first signal lines allocated to the power line. The first wiring layer and the second wiring layer are neighboring to each other.
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