Patent ID: 6642565
Filing Date: 2003-11-04
Classification: H01L

Abstract:
A method for fabricating a miniaturized capacitor, which comprises the steps of:providing an oxide layer having a recess formed therein; fabricating a macroscopically formed body forming part of a first electrode in the recess of the oxide layer, the body having a region formed of tungsten silicide; coating the region of the body with a layer of substoichiometric tungsten silicide, WSix, with x being between 1.5 and 1.9; applying a further layer of additive-free silicon to the layer of sustoichiometirc tungsten silicide resulting in a two-layer structure; heat treating the body with the two-layer structure in an inert atmosphere, until a grained layer substantially formed of the layer of substoichiometric tungsten silicide is formed; coating the body with the grained layer with a dielectric layer; and producing a second electrode on the dielectric layer.