Patent ID: 6468914
Filing Date: 2002-10-22
Classification: H01L

Abstract:
A method of forming a gate electrode in a semiconductor device, comprising the steps of:forming a gate oxide layer, a polysilicon layer, a refractory conductive layer and a mask layer on a semiconductor substrate, in sequence; depositing a first TiSix layer on the polysilicon layer; depositing a silicon layer on the first TiSix layer; etching the mask layer, the refractory conductive layer, the polysilicon layer and the gate oxide layer to form a gate electrode; forming a silicon layer on a surface of the substrate and the gate electrode; depositing a second TiSix layer on the silicon layer; anisotropically etching the silicon layer so as to exist on a side wall of the gate electrode; and oxidizing a resultant substrate by a re-oxidation process.