Semiconductor device and operating method of semiconductor device
AssigneeSK hynix Inc.
InventorByeong Ju JIN
Life of this patent
Estimating the term…
Abstract
A semiconductor device may include a bit line; memory strings connected to the bit line and having different sizes; a sensing node; and a sensing transistor that connects the bit line and the sensing node in response to a sensing signal. In an evaluation period in which the bit line and the sensing node are connected to each other, resistance of a current path between the bit line and the sensing node may be changed according to a size of a selected memory string.
Claims22
A semiconductor device comprising:
- a bit line;
- memory strings connected to the bit line and having different sizes;
- a page buffer including at least a sensing node and a sensing transistor configured to couple the bit line and the sensing node in response to a sensing signal,
- wherein, during an evaluation period of the page buffer, resistance of a current path formed from the bit line to the sensing node is adjusted based on a size of a memory string selected among the memory strings.
A semiconductor device comprising:
- a bit line;
- memory strings connected to the bit line and having different sizes;
- a page buffer including at least a sensing node and a sensing transistor configured to electrically connect the bit line and the sensing node in response to a sensing signal,
- wherein a length of an evaluation period of the page buffer, in which the bit line and the sensing node are connected to each other, is adjusted based on a size of a memory string selected among the memory strings.
An operating method of a semiconductor device, the operating method comprising:
- applying a read voltage to a selected word line;
- applying a pass voltage to unselected word lines;
- and
- turning on a sensing transistor, during an evaluation period of a page buffer, to electrically connect a sensing node and a memory string selected among memory strings connected to a bit line,
- wherein a turn-on voltage of the sensing transistor is adjusted based on a size of the selected memory string.
An operating method of a semiconductor device, the operating method comprising:
- applying a read voltage to a selected word line;
- applying a pass voltage to unselected word lines;
- and
- turning on a sensing transistor, during an evaluation period of a page buffer, to connect a sensing node and a memory string selected among memory strings connected to a bit line,
- wherein a turn-off point in time of the sensing transistor is adjusted based on a size of the selected memory string.
A semiconductor device comprising:
- a bit line;
- memory strings connected to the bit line and having different sizes;
- a page buffer including at least a sensing node and a sensing transistor configured to couple the bit line and the sensing node in response to a sensing signal,
- wherein, during an evaluation period of the page buffer, in which a current path is formed from the bit line to the sensing node, the sensing node is charged by using different methods based on a size of a memory string selected among the memory strings.
Dependencies are inferred from the claim text.