| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve the problem that since word lines WL5-8 are disposed at places corresponding to word lines WL1-4 on the same pitch, an added capacity is applied between the word lines WL5-8 and between the word lines WL1-4, leading to the reduction in both rising and falling speeds of the potential of the word lines in a reading operation, which results in a consequent reduction in operating speed. <P>SOLUTION: The word lines WL5-8 are disposed at different places from those of the word lines WL1-4 with respect to a plane formed by the word lines WL1-4 to reduce an added capacity applied to each of the word lines WL1-4 and WL5-8. Consequently, both rising and falling speeds of the potential of an electrode can be increased. <P>COPYRIGHT: (C)2003,JPO</p> |
