| 摘要 |
A capacitor includes a substrate, an insulating layer on the substrate, the insulating layer having a contact hole, a first storage node in the contact hole and on the insulating layer, a second storage node on a peripheral portion of the first storage node, the second storage node having a planar top surface, a dielectric layer on the surface of the first and second storage nodes, and a plate node on the dielectric layer. |
