Patent ID: 8598044

Claim:
A method of fabricating a semiconductor device comprising: forming a first interconnect on a semiconductor substrate; forming a film-to-be-etched on said first interconnect; forming a via hole in said film-to-be etched; forming an organic film on said film-to-be-etched; forming, on said organic film, an intermediate film by a two frequency chemical vapor deposition process, at a temperature of 100° C. or above to 300° C. or below, using a compound expressed by the general formula (1) below; forming a resist film having a pattern for an opening on said intermediate film; etching said film-to-be-etched by utilizing said organic film, said intermediate film and said resist film to form a trench in said film-to-be etched; and forming a second interconnect connected to said first interconnect by filling said trench and said via hole with metal: where each of R 1 , R 2 , R 3 and R 4 independently expresses a carbon-containing group or a hydrogen atom, excluding the case where all of R 1 to R 4 are hydrogen atoms.