CPC H10B 43/27 (2023.02) [H01L 21/8221 (2013.01); H01L 27/0688 (2013.01); H01L 27/105 (2013.01); H10B 41/27 (2023.02); H10B 43/20 (2023.02); H10B 43/40 (2023.02); H10B 69/00 (2023.02); G11C 16/0483 (2013.01)] | 20 Claims |
1. A method for writing data of a first memory cell transistor of a nonvolatile semiconductor memory device comprising:
applying a first voltage to a gate of a first select transistor, the first select transistor being coupled between a first bit line and a first memory unit having the first memory cell transistor and a second memory cell transistor coupled in series, the first memory cell transistor and the second memory cell transistor being arranged in a first direction crossing a surface of a substrate;
applying a second voltage lower than the first voltage to a gate of a second select transistor, the second select transistor being coupled between the first bit line and a second memory unit having a third memory cell transistor and a fourth memory cell transistor coupled in series, the third memory cell transistor and the fourth memory cell transistor being arranged in the first direction, a gate of the first memory cell transistor being coupled with a gate of the third memory cell transistor, the gate of the second memory cell transistor being coupled with a gate of the fourth memory cell transistor, the gate of the first select transistor not being coupled with a gate of the second select transistor; and
applying a program voltage to the gate of the first memory cell transistor for writing data of the first memory cell transistor and applying a pass voltage to the gate of the second memory cell transistor, the pass voltage being lower than the program voltage.
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