Patent ID: 7354631

Claim:
A method of chemical vapor depositing an amorphous carbon-comprising layer on a substrate, comprising: providing a deposition tool comprising a deposition chamber, a gas output manifold in upstream fluid communication with the deposition chamber, and a remote plasma generator in upstream fluid communication with the gas output manifold; providing a substrate within the deposition chamber; flowing a carbon-comprising gas to the gas output manifold effective to deposit an amorphous carbon-comprising layer on the substrate within the deposition chamber and over at least some deposition chamber internal surfaces; after depositing the amorphous carbon-comprising layer, removing the substrate from the deposition chamber; and after removing the substrate from the deposition chamber, flowing an oxygen-containing cleaning gas through the remote plasma generator, into the gas output manifold and into the deposition chamber without generating a plasma of the oxygen-containing cleaning gas with the remote plasma generator, and generating a plasma within the deposition chamber with the oxygen-containing cleaning gas effective to remove at least some of the amorphous carbon from the deposition chamber internal surfaces.