Method for forming a metal nitride layer

摘要

A method for forming thin films of a semiconductor device is provided. The thin film formation method presented here is based upon a time-divisional process gas supply in a chemical vapor deposition (CVD) method where the process gases are supplied and purged sequentially, and additionally plasma is generated in synchronization with the cycle of pulsing reactant gases. A method of forming thin films that possess a property of gradient composition profile is also presented.