Patent ID: 7144620

Claim:
A multi-layered film comprised of at least a first layer and a second layer in contact with said first layer, wherein said first layer is comprised of an amount of silicon in the range of about 1% to about 60%, an amount of carbon in the range of about 10% to about 90%, an amount of oxygen in the range of 0% to about 35%, and an amount of fluorine in the range of 0% to about 67%, each by weight based on total weight; and said second layer is comprised of an amount of silicon in the range of about 1% to about 50%, an amount of carbon in the range of about 10% to about 60%, an amount of oxygen in the range of 0% to about 30%, and an amount of fluorine in the range of 0% to about 67%, each by weight based on total weight, wherein said multi-layer film has a dielectric constant of about 2.7 or lower, and wherein said second layer has an elemental composition that is substantially different from said first layer.