Invention Grant
US09036411B2 Nonvolatile semiconductor memory device and data erase method thereof 有权
非易失性半导体存储器件及其数据擦除方法

Nonvolatile semiconductor memory device and data erase method thereof
Abstract:
A nonvolatile semiconductor memory device according to an aspect includes a semiconductor substrate, a memory cell array, memory strings, drain side selection transistors, source side selection transistors, word lines, bit lines, a source line, a drain side selection gate line, a source side selection gate line, and a control circuit. The control circuit applies a first voltage to a selected bit line, thereby executing an erase operation on a selected memory string connected to the selected bit line, and the control circuit applies a second voltage to a non-selected bit line, thereby prohibiting the erase operation for the selected memory string connected to the non-selected bit line. The first voltage is more than the second voltage.
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