Patent ID: 6456520
Filing Date: 2002-09-24
Classification: G11C

Abstract:
A semiconductor memory comprising:a plurality of ferroelectric capacitors successively connected to one another in a bit line direction each for storing a data in accordance with displacement of polarization of a ferroelectric film thereof; a plurality of selecting transistors respectively connected to said plurality of ferroelectric capacitors in parallel for selecting a selected ferroelectric capacitor from said plurality of ferroelectric capacitors; a set line connected to a first end of a series circuit including said plurality of successively connected ferroelectric capacitors, a reading voltage being applied to said set line; and a load capacitor connected to a second end of said series circuit for detecting displacement of polarization of the ferroelectric film of said selected ferroelectric capacitor, wherein, in said series circuit, capacitance is larger in a ferroelectric capacitor disposed in a position relatively near to said first end than in a ferroelectric capacitor disposed in a position relatively far from said first end.