A dual-mode NAND flash memory: 1-Gb multilevel and high-performance 512-Mb single-level modes. - Taehee Cho; Yeong-Taek Lee; Eun-Cheol Kim; Jin-Wook Lee; Sunmi Choi; Seungjae Lee 001; Dong-Hwan Kim; Wook-Ghee Han; Young-Ho Lim; Jae-Duk Lee; Jung-Dal Choi; Kang-Deog Suh (IEEE J. Solid State Circuits, 2001)