Nonvolatile Memory Device Using Variable Resistive Element
AssigneeSamsung Electronics Co., Ltd.
InventorsByung-Gil Choi, Joon-Yong Choi
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Abstract
A nonvolatile memory device using a variable resistive element is provided. The nonvolatile memory device includes first and second nonvolatile memory cells. Word lines are coupled to the first and second nonvolatile memory cells. First and second bit lines are coupled to the first and second nonvolatile memory cells, respectively. A read circuit reads resistance levels of the first and second nonvolatile memory cells by providing first and second read bias currents of different levels to the first and second bit lines, respectively.
Claims11
A nonvolatile memory device comprising:
- at least a first nonvolatile memory cell and a second nonvolatile memory cell;
- a word line coupled to the first nonvolatile memory cell and to the second nonvolatile memory cell;
- a first bit line coupled to the first nonvolatile memory cell;
- a second bit line coupled to the second nonvolatile memory cell;
- and
- a read circuit that reads a resistance level of the first nonvolatile memory cell and a resistance level of the second nonvolatile memory cell by providing first read bias and second read bias of different levels to the first bit line and to the second bit line, respectively.
A non-volatile memory device comprising:
- a first memory cell coupled to a first bit line and a word line;
- a second memory cell coupled to the word line and to a second bit line adjacent the first bit line, the word line having a resistance between the first memory cell and the second memory cell;
- and
- a read bias current providing apparatus configured to provide a first bias current to the first memory cell and a second bias current to the second memory cell;
- wherein a current level differential between the first bias current and the second bias current corresponds to the resistance of the word line between the first memory cell and the second memory cell.
Dependencies are inferred from the claim text.