Patent ID: 6649495
Filing Date: 2003-11-18
Classification: C23C,H01L

Abstract:
A manufacturing method of a semiconductor device, comprising the steps of:forming a barrier insulating film on a substrate subject to deposition, wherein an electric power having a first frequency (f1) is applied to a first film forming gas that contains at least a silicon-containing gas and an oxygen-containing gas so as to transform said first film forming gas into plasma and thus cause reaction of said first film forming gas; and forming a main insulating film having low relative dielectric constant on said barrier insulating film, wherein an electric power having a second frequency (f2) higher than said first frequency (f1) is applied to a second film forming gas that contains at least a silicon-containing gas and an oxygen-containing gas so as to transform said second film forming gas into plasma and thus cause reaction of said second film forming gas.