Patent ID: 6420743
Filing Date: 2002-07-16
Classification: H01L

Abstract:
A semiconductor device comprising:a silicon substrate; an insulating film formed on the silicon substrate; first lower electrodes disposed on the insulating film, the first lower electrodes extending along a first direction and having a stripe shaped plan configuration having a size in the first direction being longer than that in a second direction perpendicular to the first direction as its width direction; a plurality of second upper electrodes disposed on the first electrodes positioned opposite thereto and arranged in the form of a matrix along the first direction and the second direction; ferroelectric layers disposed between the first electrodes and the second electrodes the plurality of second electrodes being respectively electrically independent, and the plurality of second electrodes, the first electrodes and the ferroelectric layer therebetween a plurality of ferroelectric capacitors, each of said second electrodes having a contact hole disposed along a surface thereof, said contact hole being shifted from the center of said surface to one side along the first direction of the first electrode.