3-D NAND flash;
program temperature;
read temperature;
retention characteristics;
D O I:
10.1109/JCS57290.2023.10102959
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
A temperature-induced instability of retention characteristics is observed in 3-D NAND flash. The effect of grain boundary (GB) is newly considered to investigate the retention characteristics at different program temperature ( T-PGM) and read temperature (T-READ). At high TPGM, the decrease of threshold voltage (V-T) is reduced. As the difference between T-PGM and T-READ increases, V-T change after 4 h varies linearly from negative to positive value due to the increase of the GB effect.