Patent ID: 8106513

Claim:
A structure, comprising: a dielectric copper diffusion barrier layer over a semiconductor substrate; a fluorinated silicon glass dielectric layer on a top surface of said dielectric copper diffusion barrier layer; a copper damascene or dual damascene wire in a fluorinated silicon glass dielectric layer, a top surface of said copper damascene or dual damascene wire coplanar with a top surface of said fluorinated silicon glass dielectric layer, a region of said fluorinated silicon glass dielectric layer between said damascene wire and said dielectric copper diffusion barrier layer or said dual damascene wire extending completely through said fluorinated silicon glass dielectric layer and said dielectric copper diffusion barrier layer; a first capping layer formed on said top surface of said copper damascene or dual damascene wire and said top surface of said fluorinated silicon glass dielectric layer; and a second capping layer formed on said top surface of said first capping layer.