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The reliability issues, including 100k cycle's endurance and 2 hours high temperature storage (HTS: 150degC, 200degC and 250degC) of sub-90nm NAND flash cells, are studied. Furthermore, the trap generation models in endurance and interface trap recovery model in HTS are proposed. Endurance characteristics show that the interface trap and bulk trap generation have a power-dependence on program/erase...