Nonvolatile semiconductor storage device
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United States of America Patent
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May 12, 2015
Grant Date -
Nov 28, 2013
app pub date -
Mar 19, 2013
filing date -
May 24, 2012
priority date (Note) -
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Abstract
According to one embodiment, a nonvolatile semiconductor storage device includes a memory cell array where memory cells are arranged in a cell well in a row direction and a column direction in a matrix; word lines which select the memory cell in the row direction; bit lines which select the memory cell in the column direction; a sense amplifier which determines a value stored in the memory cell based on a potential of the bit line; a peripheral transistor in the memory cell array which is arranged in the periphery of the memory cell array; and an enhancement type transistor which drives a gate of the peripheral transistor.
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