Patent ID: 6551399
Filing Date: 2003-04-22
Classification: C23C,H01L

Abstract:
A method of fabricating a metal-insulator-metal capacitor comprising:depositing a bottom conductive layer by atomic layer deposition; depositing a sacrificial layer, which is not a photoresist, above the bottom conductive layer by atomic layer deposition without exposing the bottom conductive layer to an ambient environment; exposing the sacrificial layer to an oxidizing ambient to undergo a photolithographic and etching processes that form a defined stacked structure by pattern delineating the bottom conductive and sacrificial layers; removing the sacrificial layer to expose the underlying bottom conductive layer without exposing the bottom conductive layer to the ambient environment; depositing a dielectric layer over the exposed bottom conductive layer by atomic layer deposition without exposing the bottom conductive layer to the ambient environment; depositing a top conductive layer over the dielectric layer without exposing the underlying dielectric layer to the ambient environment; and forming the top conductive layer over the defined stacked structure.