Patent ID: 7915130
Filing Date: 2011-03-29
Classification: H01L

Abstract:
1. A manufacturing method of a semiconductor device, comprising: forming a Fin-type body, the Fin-type body being made of a semiconductor material and having an upper surface covered with a protective film; forming a gate insulation film on side surfaces of the Fin-type body; depositing a gate electrode material on the gate insulation film; depositing a covering material different from the gate electrode material so as to cover the Fin-type body and the gate electrode material; planarizing the covering material; forming a gate electrode and a cover covering the upper surface of the gate electrode by processing the gate electrode material and the covering material; forming a gate side wall on side surfaces of the gate electrode and the cover; depositing an interlayer insulation film so as to cover the gate electrode and the cover; exposing the upper surface of the cover by planarizing the interlayer insulation film; forming a trench on the upper surface and side surfaces of the gate electrode by removing the cover; depositing a metal layer on the upper surface and the side surfaces of the gate electrode; siliciding the gate electrode by reacting the gate electrode with the metal layer; removing an unreacted metal in the metal layer; and filling the trench with a conductor.