| 摘要 |
PURPOSE:To reduce noises due to inter-bit-line interference caused by the coupling capacitance between the bit lines by providing a floating bit line between a pair of activated bit lines. CONSTITUTION:Both bit line pairs BL1, BL2 are in a held bit line system and disposed physically in nested state with each other. Hence, when one of the paired bit lines is being activated, the other of the pair goes to a floating state in level 'H' without fail. Also, since the bit line in floating state is present between the main and the auxiliary bit lines of the bit line pair that are activated, the interference between these two bit lines goes to extremely little.
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