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US 8,797,809 B2Granted
Nonvolatile memory device
AssigneeSK hynix Inc.
InventorSung-Hoon Ahn
Life of this patent
Estimating the term…
Abstract
A nonvolatile memory device includes: a driving voltage generation unit configured to generate a driving voltage of a core bias line included in a memory cell current path; a comparison unit configured to compare a voltage level of the core bias line with a predetermined limit level in response to a virtual negative read signal; and a compensation driving unit configured to compensation-drive the core bias line in response to an output signal of the comparison unit.
Claims18
A nonvolatile memory device comprising:
- a driving voltage generation unit configured to generate a driving voltage of a core bias line included in a memory cell current path;
- a comparison unit configured to compare a voltage level of the core bias line with a predetermined limit level in response to a virtual negative read signal;
- and
- a compensation driving unit configured to compensation-drive the core bias line in response to an output signal of the comparison unit,
- wherein the virtual negative read signal is activated and the comparison unit is enabled in a virtual negative read operation.
2 more elements
A nonvolatile memory device comprising:
- a driving voltage generation unit configured to generate a driving voltage of a source line;
- a comparison unit configured to compare a voltage level of the source line with a predetermined limit level in response to a virtual negative read signal;
- and
- a compensation pull-down driving unit configured to compensation pull-down drive the source line in response to an output signal of the comparison unit,
- wherein the virtual negative read signal is activated and the comparison unit is enabled in a virtual negative read operation.
2 more elements
A nonvolatile memory device comprising:
- a driving voltage generation unit configured to generate a driving voltage of a virtual power line;
- a comparison unit configured to compare a voltage level of the virtual power line with a predetermined limit level in response to a virtual negative read signal;
- and
- a compensation pull-up driving unit configured to compensation pull-up drive the virtual power line in response to an output signal of the comparison unit,
- wherein the virtual negative read signal is activated and the comparison unit is enabled in a virtual negative read operation.
2 more elements
Dependencies are inferred from the claim text.