Patent ID: 7413948

Claim:
A method of forming a capacitor structure during semiconductor fabrication comprising the steps of: forming a recessed region into an insulative material, said recessed region having sidewalls and a base, said base providing access to an underlying conductive plug connected to a source/drain region of a transistor; forming a titanium layer on said sidewalls said and on a base region of said insulative material in contact with said underlying conductive plug; forming conductive hemispherical grained polysilicon material on said titanium layer; converting said hemispherical polysilicon material and said titanium layer at said base region to a titanium silicide material; forming a titanium nitride material overlying said conductive hemispherical grained polysilicon material and said titanium silicide material to form a first capacitor plate; forming a capacitor dielectric overlying said titanium nitride material; and forming a conductive polysilicon material overlying said capacitor dielectric to form a second capacitor plate.