Plasma treatment to improve barrier layer performance over porous low-K insulating dielectrics

摘要

A method for plasma treating an etched opening formed in a porous low-K material to improve barrier layer integrity including providing a substrate comprising an etched opening formed in an insulating dielectric layer including porous low-K silicon oxide according to an overlying patterned resist layer; plasma treating according to a plasma process the etched opening to remove the resist layer and increase a surface density of the insulating dielectric layer within the etched opening; and, blanket depositing a barrier layer over the etched opening.