SEMICONDUCTOR DEVICE AND METHOD OF DRIVING SEMICONDUCTOR DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a semiconductor device which requires a small occupied area and is highly integrated and has a larger memory capacity.

SOLUTION: The number of lines per unit memory cell is reduced by sharing a bit line by a writing transistor and a reading transistor. Information is written by turning on the writing transistor so that a potential of the bit line is supplied to a node where one of a source electrode and a drain electrode of the writing transistor and a gate electrode of the reading transistor are electrically connected, and then turning off the writing transistor so that a predetermined amount of charge is held in the node. Information is read by supplying a predetermined reading potential to a reading signal line connected to one of a source electrode and a drain electrode of the reading transistor and then detecting a potential of the bit line.

COPYRIGHT: (C)2011,JPO&INPIT