US 12,230,341 B2
Semiconductor device performing data read operation and controller controlling the same
Hyung Jin Choi, Icheon-si (KR); and Jung Hoon Ham, Icheon-si (KR)
Assigned to SK hynix Inc., Icheon-si (KR)
Filed by SK hynix Inc., Icheon-si (KR)
Filed on Apr. 13, 2023, as Appl. No. 18/300,289.
Claims priority of application No. 10-2022-0154572 (KR), filed on Nov. 17, 2022.
Prior Publication US 2024/0170080 A1, May 23, 2024
Int. Cl. G11C 29/02 (2006.01); G06F 3/06 (2006.01)
CPC G11C 29/021 (2013.01) [G06F 3/0619 (2013.01); G06F 3/0658 (2013.01); G06F 3/0659 (2013.01); G06F 3/0679 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method of operating a semiconductor device, the method comprising:
performing a pre-sensing operation on selected memory cells; and
performing a main sensing operation on the selected memory cells,
wherein the performing of the main sensing operation includes precharging first sensing nodes of page buffers connected to memory cells having a threshold voltage higher than an auxiliary read voltage which is applied during the pre-sensing operation among the selected memory cells based on a result of the pre-sensing operation.