Patent ID: 7960294

Claim:
A method for processing a substrate, comprising: depositing a barrier layer on the substrate, wherein the barrier layer comprises silicon and carbon; depositing a dielectric initiation layer adjacent the barrier layer, wherein the dielectric initiation layer is a silicon oxycarbide layer and is deposited by introducing a first processing gas comprising an organosilicon compound and an oxidizing gas into a processing chamber at a first organosilicon compound flow rate and reacting the first processing gas; and depositing a first dielectric layer adjacent the dielectric initiation layer, wherein the first dielectric layer comprises silicon, oxygen, and carbon and is deposited by introducing a second processing gas comprising an organosilicon compound and an oxidizing gas into the processing chamber at a second organosilicon compound flow rate and reacting the second processing gas, wherein the second organosilicon compound flow rate is greater than the first organosilicon compound flow rate.