Patent ID: 6602771
Filing Date: 2003-08-05
Classification: H01L

Abstract:
A method for fabricating the semiconductor device comprising the steps of:forming a gate insulation film on a semiconductor substrate; forming on the gate insulation film a conducting film including a semiconductor film containing boron as an acceptor impurity in at least one region; forming on the conducting film an insulation film including a silicon nitride film having an Siâ€”H bond concentration immediately after deposited, which is below 4.3Ã—1020 cmâˆ’3 measured by FT-IR; and patterning the insulation film and the conducting film to form a gate electrode of the conducting film having the upper surface covered by the insulation film, the silicon nitride film being formed by pyrolysis method at above 780Â° C. in a gas atmosphere containing dichlorosilane and ammonia with a flow rate ratio of the ammonia to the dichiorosilane above 10.