SEMICONDUCTOR MEMORY DEVICE AND MEMORY CONTROLLER
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United States of America Patent
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Issued Date -
Sep 17, 2015
app pub date -
Aug 27, 2014
filing date -
Mar 14, 2014
priority date (Note) -
Abandoned
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Abstract
A semiconductor memory device includes memory cells, word lines, and a row decoder. When program verification is performed on a memory cell that has been programmed, the row decoder transfers a first voltage to word lines that are electrically connected to gates of first memory cells. Also, when data is read, the row decoder selects a word line electrically connected to gates of selected memory cells, transfers the first voltage to non-selected word lines that are electrically connected to the first memory cells, and transfers a second voltage, which is higher than the first voltage, to non-selected word lines that are electrically connected to second memory cells.
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