METHODS FOR FORMING SILICON NITRIDE BASED FILM OR SILICON CARBON BASED FILM

摘要

A method for depositing a silicon nitride based dielectric layer is provided. The method includes introducing a silicon precursor and a radical nitrogen precursor to a deposition chamber. The silicon precursor has a N-Si-H bond, N-Si-Si bond and/or Si-Si-H bond. The radical nitrogen precursor is substantially free from included oxygen. The radical nitrogen precursor is generated outside the deposition chamber. The silicon precursor and the radical nitrogen precursor interact to form the silicon nitride based dielectric layer.