| http://www.w3.org/ns/prov#value | - Therefore, in the operations other than the erase operation, the signal line 22 (see FIG. 24) disposed on the memory cell array in the unselected memory cell block is the ground potential Vss, and the select gate lines SG1 and SG2 in the unselected memory cell block are also the ground potential Vss, and the signal lines 22, SG1 and SG2 function as shield lines between the bit line and word line.
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