Patent ID: 6274470
Filing Date: 2001-08-14
Classification: H01L

Abstract:
A method for fabricating a semiconductor device, comprising:providing a substrate which includes silicon;forming a metallic layer on the substrate;forming a metallic silicide layer in a surface of the substrate which contacts with the metallic layer by a first heat treatment;removing the metallic layer on the metallic silicide layer;forming a protective layer on the metallic silicide layer, wherein the protective layer is a first insulating layer;lowering a resistance of the metallic silicide layer by a second heat treatment;forming a second insulating layer on the first insulating layer;forming a third insulating layer on the second insulating layer;opening a first contacting hole in the third insulating layer so as to expose a portion of the second insulating layer; andopening a second contacting hole in the first and second insulating layers so as to expose a portion of the metallic silicide layer, wherein the second contacting hole is continuous with the first contacting hole.