Patent ID: 8217439

Claim:
A method of forming a capacitor, comprising: forming a first opening in a first sacrificial material; forming a first capacitor storage node within said first opening; the first capacitor storage node having outer lateral surfaces along the first sacrificial material; forming a second sacrificial material over the first capacitor storage node and over the first sacrificial material; forming a second opening through the second sacrificial material to expose a region of the first capacitor storage node; forming a second capacitor storage node within the second opening and directly against the first capacitor storage node; the second capacitor storage node having exposed inner lateral surfaces within the lined second opening, and having outer lateral surfaces along the second sacrificial material; removing the first and second sacrificial materials to expose the outer lateral surfaces of the first and second capacitor storage nodes; forming capacitor dielectric material along the exposed inner lateral surfaces of the second capacitor storage node, and along the exposed outer lateral surfaces of the first and second capacitor storage nodes; and forming capacitor electrode material along the capacitor dielectric material, and spaced from the first and second capacitor storage nodes by the capacitor dielectric material.