Process for forming a low dielectric constant fluorine and carbon-containing silicon oxide dielectric material characterized by improved resistance to oxidation

摘要

A process is provided for forming a low k fluorine and carbon-containing silicon oxide dielectric material by reacting with an oxidizing agent one or more silanes including one or more organofluoro silanes characterized by the absence of aliphatic C-H bonds. In one embodiment, the process is carried out using a mild oxidizing agent. Also provided is a low dielectric constant fluorine and carbon-containing silicon oxide dielectric material for use in an integrated circuit structure containing silicon atoms bonded to oxygen atoms, silicon atoms bonded to carbon atoms, and carbon atoms bonded to fluorine atoms, where the dielectric material is characterized by the absence of aliphatic C-H bonds and where the dielectric material has a ratio of carbon atoms to silicon atoms of C:Si greater than about 1:3.