Patent ID: 8288294

Claim:
A process for producing an insulating film for a semiconductor device, comprising: supplying a gas containing a raw material gas obtained by gasifying an alkylborazine compound represented by the following chemical formula 1 into a chamber; causing plasma generating means of an inductively coupled type to radiate electromagnetic waves into the chamber, thereby converting the gas into a plasma state, wherein the plasma generating means radiates the electromagnetic wave into the chamber from an antenna placed immediately above a ceiling plate of the chamber; placing a substrate in a plasma diffusion region of the plasma and at a position at which a distance from a lower surface of the ceiling plate is 5 cm to 30 cm; and performing gas-phase polymerization by using, as fundamental units, borazine skeletal molecules dissociated from the alkylborazine compound by the plasma, thereby forming a film on the substrate as the insulating film for a semiconductor device: where R1 to R6 in the above chemical formula 1 are each a hydrogen atom or an alkyl group having 5 carbon atoms or less, and may be the same or different, except in a case where all R1 to R6 are hydrogen atoms.