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US 12,482,504 B2Granted
Page buffer circuit and operation method thereof
AssigneeSK hynix Inc.
InventorSoo Yeol Chai
Life of this patent
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Abstract
A page buffer circuit may include: a data transfer circuit configured to transfer data, transferred to a first sensing node through a bit line, to a second sensing node during a data sensing operation; a first latch circuit configured to sense the data transferred to the first sensing node, and store the sensed data; and a second latch circuit configured to sense the data transferred to the second sensing node, and store the sensed data.
Claims18
A page buffer circuit comprising:
- a data transfer circuit configured to transfer data, received through a bit line, to a first sensing node and to a second sensing node during a data sensing operation;
- a first latch circuit configured to sense the data transferred to the first sensing node, and store the sensed data transferred to the first sensing node;
- and
- a second latch circuit configured to sense the data transferred to the second sensing node, and store the sensed data transferred to the second sensing node,
- wherein the first latch circuit comprises:
- a latch driving circuit coupled to the second sensing node and configured to store the data transferred to the first sensing node in a data node and discharge the second sensing node based on the data node;
- and
- a current control circuit coupled to the data node and the first sensing node and configured to control a driving current of the data node on the basis of the data transferred to the first sensing node.
5 more elements
An operation method of a page buffer circuit, the method comprising:
- evaluating a plurality of sensing nodes on the basis of data transferred during a data sensing operation;
- sensing the plurality of sensing nodes, and storing sensing results;
- and
- reading the sensing results,
- wherein the sensing the plurality of sensing nodes and the storing the sensing results comprises:
- a first storing operation of sensing a first sensing node of the plurality of sensing nodes and storing a sensing result of the first sensing node;
- and
- a second storing operation of sensing a second sensing node of the plurality of sensing nodes and storing a sensing result of the second sensing node, and
- wherein the first and second storing operations have active periods overlapping each other.
6 more elements
An operation method of a page buffer circuit, the method further comprising:
- precharging a first sensing node and precharging a second sensing node with a higher voltage level than the first sensing node;
- evaluating the first sensing node and the second sensing node on the basis of data transferred during a data sensing operation;
- and
- sensing the first sensing node and the second sensing node.
1 more element
Dependencies are inferred from the claim text.