Resistive memory device and method of operating the same
First Claim
1. A method of operating a resistive memory device comprising a plurality of memory cells arranged in regions where a plurality of first signal lines and a plurality of second signal lines cross each other, the method comprising:
- applying a first voltage to a first line, from among unselected first signal lines connected to unselected memory cells, that is not adjacent to a selected first signal line connected to a selected memory cell from among the plurality of memory cells;
applying a second voltage that is lower than the first voltage to a second line, from among the unselected first signal lines, that is adjacent to the selected first signal line;
floating the unselected first signal lines; and
applying a third voltage that is higher than the first voltage to the selected first signal line.
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Accused Products
Abstract
A resistive memory device including multiple resistive memory cells arranged in regions where first signal lines and second signal lines cross each other, and a method of operating the resistive memory device, are provided. The method includes applying a first voltage to a first line, from among unselected first signal lines connected to unselected memory cells, that is not adjacent to a selected first signal line connected to a selected memory cell from among the multiple memory cells; applying a second voltage that is lower than the first voltage to a second line, from among the unselected first signal lines, that is adjacent to the selected first signal line; floating the unselected first signal lines; and applying a third voltage that is higher than the first voltage to the selected first signal line.
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Citations
20 Claims
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1. A method of operating a resistive memory device comprising a plurality of memory cells arranged in regions where a plurality of first signal lines and a plurality of second signal lines cross each other, the method comprising:
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applying a first voltage to a first line, from among unselected first signal lines connected to unselected memory cells, that is not adjacent to a selected first signal line connected to a selected memory cell from among the plurality of memory cells; applying a second voltage that is lower than the first voltage to a second line, from among the unselected first signal lines, that is adjacent to the selected first signal line; floating the unselected first signal lines; and applying a third voltage that is higher than the first voltage to the selected first signal line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of operating a resistive memory device comprising a plurality of memory cells, the method comprising:
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applying a first voltage to an unselected signal line that is not adjacent to a selected signal line; applying a second voltage having a different voltage level from a voltage level of the first voltage to a unselected signal line that is adjacent to the selected signal line; and applying a third voltage having a different voltage level from the voltage levels of the first voltage and the second voltage, respectively, to the selected signal line, wherein a voltage difference between the first voltage and the second voltage varies depending on an operation performed by the resistive memory device. - View Dependent Claims (13, 14, 15)
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16. A resistive memory device, comprising:
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a memory cell array comprising a plurality of memory cells arranged in regions where a plurality of first signal lines and a plurality of second signal lines cross each other; a voltage generator configured to generate a first voltage, a second voltage different from the first voltage, and a third voltage different from the first and second voltages; and control logic configured to select a memory cell from among the plurality of memory cells, the selected memory cell being connected to a selected first signal line and a selected second signal line;
to apply the first voltage to a first line, from among unselected first signal lines connected to unselected memory cells, that is not adjacent to the selected first signal line;
to apply the second voltage to a second line, from among the unselected first signal lines, that is adjacent to the selected first signal line; and
to apply the third voltage to the selected first signal line as the first and second lines are floated. - View Dependent Claims (17, 18, 19, 20)
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Specification