Dynamic random access memory

Static information storage and retrieval – Systems using particular element – Capacitors

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36518901, 36518912, G11C 1124

Patent

active

053595661

ABSTRACT:
A semiconductor memory device according this invention comprises a memory cell array in which cascade memory cells arranged in matrix form, each cell being composed of a plurality of MOS transistors cascade-connected to each other, and a plurality of information storing capacitors one end of each of which is connected to one end of each of the transistors, respectively, word lines equally connected to the memory cells in each row of the memory cell array, a bit line equally connected to each column of the memory cell array, a capacitor-plate line provided for each column of the memory cell array, and equally connected to the other end of each of the capacitor groups in the memory cells in the corresponding column, a bit-line precharger circuit connected to each of the bit lines, a capacitor-plate line precharger circuit connected to each of the capacitor-plate lines, and a sense amplifier circuit which is provided for column of the memory cell array, and which senses the potential between the bit line and the capacitor-plate line in the read operation.

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