Patent ID: 7652341

Claim:
A semiconductor apparatus comprising: a semiconductor substrate; a high dielectric constant film formed over the semiconductor substrate, the high dielectric constant film comprising a film containing at least one of hafnium (Hf) and zirconium (Zr), and silicon (Si), oxygen (O), and nitrogen (N); and an anti-reaction film formed on the high dielectric constant film, a thickness of the anti-reaction film being thinner than a thickness of the high dielectric constant film, the anti-reaction film comprising a film selected from the group consisting of: a film containing Si, O, and Hf, where an amount of Hf contained therein is less than in the high dielectric constant film, a film containing Si, O, and Zr, where an amount of Zr contained therein is less than in the high dielectric constant film, a film containing Si, O, Hf, and Zr, where an amount of Hf and Zr contained therein is less than in the high dielectric constant film, a film containing Si, O, and N, a film containing Si, O, N, and Hf, where an amount of Hf contained therein is less than in the high dielectric constant film, a film containing Si, O, N, and Zr, where an amount of Zr contained therein is less than in the high dielectric constant film, and a film containing Si, O, N, Hf, and Zr, where an amount of Hf and Zr contained therein is less than in the high dielectric constant film; and a gate electrode formed on the anti-reaction film, the gate electrode containing Si and added with dopant.