Patent ID: 7294588

Claim:
A method for depositing a silicon oxide film on a substrate disposed in a process chamber, the method comprising: flowing a process gas comprising a halogen source, a fluent gas, a silicon source, and an oxidizing gas reactant into the process chamber, wherein the fluent gas comprises H 2 and has a flow rate to the process chamber less than 1500 sccm; forming a plasma having an ion density of at least 10 11 ions/cm 3 from the process gas; and depositing the silicon oxide film over the substrate with a halogen concentration less than 1.0 at. %, wherein: depositing the silicon oxide film comprises depositing the silicon oxide film with the plasma using a process that has simultaneous deposition and sputtering components; and a flow rate of the halogen source to the process chamber to a flow rate of the silicon source to the process chamber is substantially between 0.5 and 3.0.