Patent ID: 7648867

Claim:
A method for fabricating a semiconductor device comprising: forming a dummy gate that defines a region in which a gate electrode is formed on a semiconductor substrate; forming a surface film on the semiconductor substrate so as to cover an upper surface and a sidewall of the dummy gate by directional sputtering vertical to a surface of the semiconductor substrate, the directional sputtering being one of collimate sputtering, long throw sputtering and ion beam sputtering, a thickness in a perpendicular direction to the sidewall of the dummy gate of the surface film formed on the sidewall of the dummy gate being smaller than a thickness in a perpendicular direction to the surface of the semiconductor substrate of the surface film formed on the semiconductor substrate located on both sides of the dummy gate and the upper surface of the dummy gate, removing the surface film formed along the sidewall of the dummy gate so as to form an opening that exposes the sidewall of the dummy gate; removing the dummy gate and the surface film formed on the upper surface of the dummy gate by etching the dummy gate through the opening; and forming the gate electrode in a region from which the dummy gate on the semiconductor substrate has been removed.