| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonvolatile semiconductor storage device having improved data reliability according to an embodiment.SOLUTION: A nonvolatile semiconductor storage device according to an embodiment includes: a first memory string that includes a first memory cell and a second memory cell; a first word line connected to a control gate of the first memory cell; a second word line connected to a control gate of the second memory cell; and a peripheral circuit controlling a data write sequence and a data read sequence. The peripheral circuit executes a failure detection operation for applying a positive first pass voltage to the first word line and the second word line in a case of executing the write sequence or the read sequence to the first memory cell. |
