Patent ID: 6319769
Filing Date: 2001-11-20
Classification: H01L

Abstract:
A method of fabricating a capacitor, comprising:forming a contact hole by removing a portion of an insulating layer formed on a substrate, wherein the substrate has an impurity diffusion region, and wherein the contact hole exposes at least a portion of the impurity diffusion region;forming an electrically conductive plug in the contact hole, wherein the electrically conductive plug is in electrical contact with the impurity diffusion region;forming a first electrode on the insulating layer and the electrically conductive plug;forming a tungsten (W) layer to a thickness of about 50 to 200 .ANG. on the first electrode by flowing WF.sub.6 gas at about 250 to 500.degree. C. for about 3 to 20 minutes;forming a dielectric layer on the tungsten layer; andforming a second electrode on the dielectric layer.