Patent ID: 7674390

Claim:
A method comprising: dispersing zeolite particles in a liquid sol to form a zeolite-sol colloid; depositing the zeolite-sol colloid on an underlying layer; and extracting a first amount of the liquid from the zeolite-sol colloid to form a wet gel-zeolite composite film, wherein a second amount of the liquid remains in the wet-gel zeolite composite film; opening a via and a trench in the wet gel-zeolite composite film; forming a conductive material in the via and the trench of the wet gel-zeolite composite film; depositing an interlayer dielectric (ILD) on the wet gel-zeolite composite film; and forming the wet gel-zeolite composite film into an aerogel-zeolite composite film, after forming the conductive material and depositing the ILD.