A novel gate-all-around with back-gate (GAAB) 3D NAND flash memory structure for high performance with disturbance-less program operation

Autor: Jae-Min Sim, In-Ku Kang, Sung-In Hong, Changhan Kim, Changhyun Cho, Kyunghoon Min, Yun-Heub Song
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Memories - Materials, Devices, Circuits and Systems, Vol 5, Iss , Pp 100073- (2023)
Druh dokumentu: article
ISSN: 2773-0646
DOI: 10.1016/j.memori.2023.100073
Popis: In this paper, we propose a gate-all-around with back-gate (GAAB) 3D NAND flash memory structure for high performance and reliability. First, in the selected string, we confirmed that the proposed structure can improve program performance using negative bit-line voltage scheme with pass disturbance-less characteristic. Second, in the inhibited string, we confirmed self-boosting, which is perfectly performed by the back-gate bias without the unselected WL. Based on these potentials of the GAAB NAND structure, we would like to propose our GAAB structure as a future structure with the advantages of high performance and high reliability characteristics compared with conventional GAA-type NAND flash memory.
Databáze: Directory of Open Access Journals