US 12,014,772 B2
Storage controller and storage device including the same
Dong Eun Shin, Seoul (KR); Jeong Uk Kang, Seongnam-si (KR); and Hyun Jin Choi, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jun. 23, 2022, as Appl. No. 17/847,948.
Claims priority of application No. 10-2021-0158688 (KR), filed on Nov. 17, 2021; and application No. 10-2022-0007670 (KR), filed on Jan. 19, 2022.
Prior Publication US 2023/0154529 A1, May 18, 2023
Int. Cl. G11C 11/56 (2006.01); G11C 16/04 (2006.01); G11C 16/08 (2006.01); G11C 16/10 (2006.01)
CPC G11C 11/5628 (2013.01) [G11C 11/5671 (2013.01); G11C 16/0483 (2013.01); G11C 16/08 (2013.01); G11C 16/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A storage controller for writing first data to a first memory cell by performing programming of the first memory cell N-times (N being a positive integer greater than 1), the storage controller comprising:
a write amplification (WAF) manager configured to check whether the first data is invalid data before an Nth programming of the first memory cell is performed; and
a central processing unit (CPU) configured not to perform the N-th programming of the first memory cell when the first data is the invalid data.