Patent ID: 8693163

Claim:
A device comprising: a substrate having a first region and a second region; a capacitor formed in the first region of the substrate and comprising: a first capacitor plate; a first insulation layer encircling the first capacitor plate; a second capacitor plate encircling the first insulation layer, wherein each of the first capacitor plate, the first insulation layer, and the second capacitor plate extends from a front surface of the substrate to a back surface of the substrate; a second insulation layer encircling the second capacitor plate; and a third capacitor plate encircling the second insulation layer, wherein each of the second insulation layer and the third capacitor plate extends from the front surface to the back surface of the substrate; metal lines and vias connecting the first capacitor plate to the third capacitor plate; a through-substrate via (TSV) formed in the second region of the substrate and extending from the front surface to the back surface of the substrate, wherein the TSV and the second capacitor plate are formed of a same conductive material comprising same elements and same percentages of the elements; and a second isolation layer between the TSV and the substrate.