Patent ID: 8183109
Filing Date: 2012-05-22
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, comprising the steps of: forming a base insulating film on a semiconductor substrate; forming a capacitor on the base insulating film, the capacitor being constructed by laminating a lower electrode, a capacitor dielectric film formed of a ferroelectric material, and an upper electrode; forming a hydrogen diffusion preventing insulating film covering the capacitor; forming a capacitor protecting insulating film on the hydrogen diffusion preventing insulating film; and forming a first insulating film on the capacitor protecting insulating film by a plasma CVD method where, while a high-frequency bias electric power is applied toward the semiconductor substrate, a plasma-generating high frequency electric power is applied to first deposition gas containing oxygen and silicon compound gas, wherein a condition by which moisture content in the capacitor protecting insulating film becomes less than that in the first insulating film is employed as a deposition condition for the capacitor protecting insulating film.