US 11,894,076 B2
Apparatus and method for programming and verifying data in non-volatile memory device
Hyung Jin Choi, Gyeonggi-do (KR)
Assigned to SK hynix Inc., Gyeonggi-do (KR)
Filed by SK hynix Inc., Gyeonggi-do (KR)
Filed on Jan. 25, 2022, as Appl. No. 17/583,913.
Claims priority of application No. 10-2021-0124804 (KR), filed on Sep. 17, 2021.
Prior Publication US 2023/0088147 A1, Mar. 23, 2023
Int. Cl. G11C 16/34 (2006.01); G11C 16/08 (2006.01); G11C 7/10 (2006.01); G11C 16/24 (2006.01); G11C 16/10 (2006.01); G11C 16/26 (2006.01)
CPC G11C 16/3459 (2013.01) [G11C 7/1039 (2013.01); G11C 16/08 (2013.01); G11C 16/102 (2013.01); G11C 16/24 (2013.01); G11C 16/26 (2013.01); G11C 16/3404 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A non-volatile memory device comprising:
a memory cell array including a plurality of memory cells coupled between a plurality of word lines and a plurality of bit lines;
a peripheral circuit suitable for:
performing a foggy operation including a first application operation of applying a first application voltage to a selected word line among the plurality of word lines and a first verification operation of applying a first verification voltage having a same level as or a higher level than a target threshold voltage to the selected word line, and
performing a fine operation including a second application operation of applying a second application voltage to the selected word line and a second verification operation of applying a second verification voltage having the same level as the target threshold voltage; and
a control logic circuit suitable for:
determining whether the foggy operation is completely performed according to whether a number of memory cells each having a threshold voltage higher than the first verification voltage is equal to or greater than a first predetermined number as a result of the first verification operation, and
determining whether the fine operation is completely performed according to whether a number of memory cells each having a threshold voltage lower than the second verification voltage is less than or equal to a second predetermined number as a result of the second verification operation.