Patent ID: 8563443

Claim:
A method of forming a dielectric film having at least one of Si—N, Si—C, or Si—B bonds on a semiconductor substrate by atomic layer deposition (ALD), which comprises: (i) supplying a precursor in a pulse to adsorb the precursor on a surface of a substrate loaded in a reactor, said precursor having at least one Si—C or Si—N bond, at least one of hydrocarbon, and at least two halogens attached to silicon in its molecule; (ii) supplying a reactant gas in a pulse over the surface without overlapping the supply pulse of the precursor; (iii) reacting the adsorbed precursor with the reactant gas on the surface by applying RF power in a pulse to the reaction gas during step (ii); and (iv) repeating steps (i) to (iii) to form a dielectric film having at least one of Si—N, Si—C, or Si—B bonds on the substrate.