摘要:
A high density nonvolatilized semiconductor integrated circuit is comprised of a Dynamic RAM (DRAM) cell unit and a nonvolatile cell unit. The DRAM cell unit is comprised of a first transistor having its gate connected to a word line, its source connected to a bit line and its drain connected to a first capacitor. The first capacitor has its other electrode connected to a first line. The nonvolatile RAM cell unit is comprised of a second transistor having its gate connected to a second line, its source connected to the bit line and its drain connected to a second capacitor. The second capacitor has its other electrode connected to a third line. The second capacitor comprises a ferroelectric substance to which a reverse voltage is applied in order to read out its signal, and the first capacitor comprises a paraelectric substance to which such reverse voltage is not applied. The cycle life of the DRAM cell unit is thereby increased. Further, the composition of the integrated circuit having a smaller number of constituent elements allows high-density circuit formation.
摘要:
An electro-optical device comprising: a pair of substrates, at least one of the substrates being light-transmissive; an electro-optical material sandwiched between the substrates; a plurality of electro-optical switching elements disposed on an inner surface of at least one of the substrates, each of the switching elements including a first electrode layer, a non-linear-resistive layer substantially composed of an amorphous material of silicon and carbon and a picture element electrode electrically connected to the first electrode layer through the non-linear-resistive layer; and a second electrode layer disposed on an inner surface of the other substrate to define a plurality of elements between the second electrode layer and the plurality of picture element electrodes for applying a voltage to the electro-optical material in a desired picture element.