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In this work, we compared the WL driving schemes in 512 Gb planar NAND with 32 KB page size. In the conventional WL driving scheme, the rising time of the selected WL voltage is very large because of the large coupling capacitance between the selected and unselected WLs. The WL under-driving scheme (WLUDS) reduces the effect of coupling capacitance by using the 2-phase control of unselected WL voltage...
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