Patent ID: 9059394
Filing Date: 2015-06-16
Classification: H01L

Abstract:
1. A semiconductor structure comprising: a semiconductor substrate having a dielectric layer formed thereon and conductive contacts formed therein to be connected with access circuitry, the conductive contacts including a conductive material surrounded by a liner material which protrude over a top surface of the dielectric layer; a dielectric cap layer formed over exposed portions of the dielectric layer; a lower bottom electrode formed over each conductive contact, wherein the lower bottom electrode is self-aligned to an upper surface of the conductive contact such that a bottom surface of the lower bottom electrode is at a same level as a bottom surface of the dielectric cap layer, such that the bottom surface of the lower bottom electrode is co-planar with the bottom surface of the dielectric cap layer; and wherein the lower bottom electrode is in contact with exposed side surfaces of the conductive material and liner material which protrude over the top surface of the dielectric layer.