STORAGE DEVICE AND METHOD OF CONTROLLING STORAGE DEVICE
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United States of America
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Issued Date -
Mar 20, 2025
app pub date -
Sep 10, 2024
filing date -
Sep 10, 2024
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Abstract
A storage device includes a memory cell including a first layer, a second layer, and a memory layer between the first and second layers and can switch between states including a first state and a second state in which electrical resistance is higher, and a circuit executing a write process. The control circuit is configured to, in the process to switch the memory layer from the second to first state, alternately apply to the second layer a first voltage having positive polarity and a second voltage having negative polarity, an absolute value of the second voltage being larger than the first voltage, and in the process to switch the memory layer from the first to second state, alternately apply to the second layer a third voltage having negative polarity and a fourth voltage having positive polarity, an absolute value of the fourth voltage being larger than the third voltage.
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