Patent ID: 6864138
Filing Date: 2005-03-08
Classification: H01L,Y10S

Abstract:
1. A method of forming a capacitor structure, comprising: forming a first layer over a node location; forming a semiconductive material masking layer over the first layer; etching an opening through the semiconductive material masking layer and the first layer to the node location while using the semiconductive material masking layer as an etch mask; forming a storage node layer within the opening and in electrical connection with the masking layer; after forming the storage node layer, removing at least a portion of the masking layer to form a capacitor storage node comprising the masking layer and the storage node layer; forming a capacitor dielectric layer operatively proximate the capacitor storage node, a first portion of the masking layer being elevationally above an uppermost surface of the first layer after the forming of the capacitor dielectric layer, and a second portion of the masking layer being elevationally below the uppermost surface of the first layer after the forming of the capacitor dielectric layer; and forming an outer capacitor plate operatively proximate the capacitor dielectric layer.