Semiconductor integrated circuit system and method for driving the same
First Claim
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1. A method of driving a semiconductor integrated circuit system, comprising:
- phase-changing a selected memory cell area to a reset state;
detecting a phase-change resistance of a memory cell area adjacent to the selected memory cell area on the same phase-change line;
generating a correction current in response to a detection result of the phase-change resistance of the adjacent memory cell area; and
maintaining a phase-change state of the adjacent memory cell area by applying the correct current to the adjacent memory cell area.
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Abstract
A semiconductor integrated circuit system includes a phase-change line including a first phase-change area constituting a first memory cell and a second phase-change area constituting a second memory cell, a write current providing unit configured to phase-change a selected one of the first and second phase-change areas, and a phase-change compensation unit configured to restore the other of the first and second phase-change areas by compensating for a dummy phase-change caused in the other phase-change area due to a phase-change of the selected phase-change area.
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Citations
5 Claims
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1. A method of driving a semiconductor integrated circuit system, comprising:
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phase-changing a selected memory cell area to a reset state; detecting a phase-change resistance of a memory cell area adjacent to the selected memory cell area on the same phase-change line; generating a correction current in response to a detection result of the phase-change resistance of the adjacent memory cell area; and maintaining a phase-change state of the adjacent memory cell area by applying the correct current to the adjacent memory cell area. - View Dependent Claims (2, 3, 4, 5)
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Specification