Patent ID: 6818554
Filing Date: 2004-11-16
Classification: H01L

Abstract:
A method for fabricating a semiconductor device, comprising:preparing a substrate having a silicon region; causing the silicon region to be amorphous by an ion implantation; heating the substrate having the amorphous silicon region at a predetermined temperature; forming a metallic layer on the amorphous silicon region of the heated substrate by a straight sputtering method so as to sputter straightly to the amorphous silicon region, wherein the metallic layer has a first thickness; forming a protective layer on the metallic layer, wherein the protective layer protects the metallic layer from a surrounding atmosphere, wherein the protective layer has a second thickness greater than the first thickness; and forming a metallic silicide layer in an interface between the amorphous silicon region and the metallic layer by a heat treatment after said forming a protective layer, wherein the metallic silicide layer is comprised of metal from the metallic layer and silicon from the amorphous silicon region.