Method for operating page buffer of nonvolatile memory device
AssigneeHynix Semiconductor Inc.
InventorJi Son
Life of this patent
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Abstract
A method for operating a page buffer of a nonvolatile memory device includes activating a first latch circuit of the page buffer in a programming operation and inactivating the first latch circuit in a copy-back programming operation. A second latch circuit is activated in both the copy-back programming operation and the programming operation.
Claims14
A nonvolatile memory device comprising:
- a memory cell array including a plurality of memory cells;
- and
- a plurality of the page buffers coupled to the memory cell array through a sensing line,
- wherein each page buffer includes:
- first and second latch circuits configured to store a program data bit;
- a data transmission module configured to transfer the program data bit to a selected bitline through the sensing line, the program data bit transferred from the first latch circuit and stored in the second latch circuit during a programming operation;
- and
- a copy-back programming circuit coupled between the second latch circuit and the sensing line and configured to conduct a copy-back programming operation,
- wherein the first latch circuit is configured to be activated in the programming operation and not activated in the copy-back programming operation, and the second latch circuit is configured to be activated in both the copy-back programming operation and the programming operation.
A method for operating a page buffer of a nonvolatile memory device including a memory cell array composed of a plurality of memory cells, a plurality of page buffers coupled to the memory cell array through a sensing line, each page buffer having first and second latch circuits, the method comprising:
- activating the first and second latch circuits during a programming operation;
- inactivating the first latch circuit during a copy-back programming operation;
- and
- activating the second latch circuit during the copy-back programming operation.
Dependencies are inferred from the claim text.