Patent ID: 8309473

Claim:
A method of treating an acetylene gas stream prior to use in forming a layer of high carbon content material on a semiconductor substrate during fabrication of an electronic device, the method comprising: (a) delivering the acetylene gas stream to an inlet of a pre-processing module disposed upstream from a deposition chamber for forming the layer of high carbon content material, wherein the acetylene gas stream is provided from an acetylene source comprising storage solvent in which acetylene is soluble; (b) condensing said storage solvent from the acetylene gas stream in the pre-processing module to provide a reduced storage solvent concentration acetylene gas stream having a substantially constant concentration of said storage solvent over a time period during which said layer of high carbon content material is deposited on the semiconductor substrate; (c) heating said reduced storage solvent concentration acetylene gas stream in the preprocessing module to a predetermined temperature range; and (d) delivering said heated reduced storage solvent concentration acetylene gas stream from the pre-processing module to the deposition chamber.