| abstract |
The present invention relates to a semiconductor device manufacturing method which comprises the steps of forming a first insulating film (9) over a silicon substrate (1) (semiconductor substrate), forming a lower electrode (11a), a dielectric film (12a), and an upper electrode (13a) of a capacitor on the first insulating film (9), forming a first capacitor protection insulating film (14) for covering at least the dielectric film (12a) and the upper electrode (13a), forming a second capacitor protection insulating film (16), which covers the first capacitor protection insulating film (14), by a chemical vapor deposition method in a state that a bias voltage is not applied to the silicon substrate (1), and forming a second insulating film (17) on the second capacitor protection insulating film (16) by the chemical vapor deposition method in a state that a bias voltage is applied to the silicon substrate (1). |