Patent ID: 7288454

Claim:
A method of forming capacitors, comprising: forming a first mold layer and a second mold layer on a substrate; forming storage electrodes through the second mold layer and the first mold layer, upper portions of the storage electrodes being protruded from the second mold layer, the storage electrodes arranged on the substrate in a regular two dimensional configuration; forming a first sacrificial layer on the storage electrodes and the second mold layer, the sacrificial layer partially filling up a gap between adjacent storage electrodes along a first direction and filling up a gap between the adjacent storage electrodes along a second direction, a first recess being formed between the adjacent storage electrodes along the first direction; forming sacrificial spacers on sidewalls of the storage electrodes by etching the first sacrificial layer, the sacrificial spacers defining an opening exposing the second mold layer between the adjacent storage electrodes along the first direction; etching the exposed second mold layer to expose the first mold layer; removing the first mold layer and the sacrificial spacers; and forming a dielectric layer and a plate electrode on the storage electrodes.