Patent ID: 6960524
Filing Date: 2005-11-01
Classification: C23C,H01L

Abstract:
1. A method for production of a metallic or metal-containing layer using a precursor on a silicon- or germanium-containing layer of an electronic component, the method comprising: (a) applying an intermediate layer to the silicon- or germanium-containing layer before the precursor is used, said intermediate layer forming a diffusion barrier at least for the elements of the precursor which would etch the silicon- or germanium- containing layer and itself being etching-resistant relative to the precursor, wherein the intermediate layer is applied with a thickness of a few atomic layers in an ALD method, wherein an intermediate layer is used which enables a diffusion in the context of a subsequent silicide process serving for production of the metallic or metal-containing layer; and (b) after the silicide process has been carried out, removing the metallic or metal-containing layer lying above the intermediate layer and, if appropriate, also the intermediate layer by etching which is selective with respect to the intermediate layer.