Memory device configured to perform asymmetric write operation according to write direction
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United States of America Patent
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Dec 22, 2020
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N/A
app pub date -
Jul 10, 2019
filing date -
Sep 14, 2018
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Abstract
Disclosed are memory devices including a variable resistance memory cell and a word line control circuit. A memory device including a variable resistance memory cell including a variable resistance element, a first cell transistor, and a second cell transistor, a first end of the variable resistance element connected to a bit line, a second end of the variable resistance element, a first end of the first cell transistor, and a first end of the second cell transistor connected to the common node, a second end of the first cell transistor and a second end of the second cell transistor connected to a source line, and a word line control circuit configured to separate a sub word line connected to a gate electrode of the second cell transistor from a word line connected to a gate electrode of the first cell transistor in a first write operation and to connect the word line and the sub word line to each other in a second write operation may be provided.
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