FIELD: semiconductor memory devices.
SUBSTANCE: device has a lot of memory elements, each of which contains input and output areas, isolating film, channel area, shutter electrode, area for storing electric charges, device also contains large number of periphery circuits, containing reading amplifier, register for storing recorded data of memory elements, register, which preserves the flag, indicating end of record during its check, and circuit, which after recording operation compares value, read from memory cell, to value, fixed by flag at the end of record, and overwrites value indicated by the flag.
EFFECT: higher reliability of operation.
5 cl, 71 dwg
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