Patent ID: 8610248

Claim:
A capacitor structure, comprising, a plurality of sub-capacitors stacked on a substrate, each of which comprises a top capacitor plate, a bottom capacitor plate and a dielectric layer sandwiched therebetween; and a first capacitor electrode and a second capacitor electrode connecting the plurality of sub-capacitors in parallel, wherein the plurality of sub-capacitors include a plurality of first sub-capacitors and a plurality of second sub-capacitors stacked in an alternate manner, so that each of the first sub-capacitors has a bottom capacitor plate overlapping with a top capacitor plate of an underlying second sub-capacitor, with the overlapping plate being a first electrode layer; and each of the second sub-capacitors has a bottom capacitor plate overlapping with a top capacitor plate of an underlying first sub-capacitor, with the overlapping plate being a second electrode layer, characterized in: that the first electrode layer and the second electrode layer are made of different conductive materials; the second electrode layer is etched from a first side of the capacitor structure to form a first recess; the first electrode layer is etched from a second side of the capacitor structure to form a second recess; and the first and second recesses are filled with a dielectric material to insulate the second electrode layer from the first capacitor electrode and the first electrode layer from the second capacitor electrode, respectively.