| 摘要 |
PURPOSE:To prevent the reduction in margin of sense operation and the generation of unbalanced capacitance of two bit lines of bit line pairs by crossing two bits lines of bit line pairs on its way. CONSTITUTION:Two bit lines Bi, the inverse of Bi of bit lines Bi, the inverse of Bi,... are crossed at the middle point. Thus, the line-capacitance of the bit lines B1, the inverse of B1,... and signal lines using other wiring material than the bit lines is entirely the same. Thus, if mis-alignment is caused to the position of the signal line, no unbalance is caused to the two bit line capacitance of the bit line pairs and the reduction in the margin of the sense operation is prevented.
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