Patent ID: 6495427
Filing Date: 2002-12-17
Classification: H01L

Abstract:
A method of fabricating a capacitor, comprising:forming a first insulative layer overlying a substrate, with the first insulative layer having a thickness and having an opening exposing a portion of the substrate; forming a contact plug within the opening and contacting the substrate, with the contact plug having a height less than the thickness to define a recess; forming a first barrier layer within the recess and contacting the contact plug; forming a second barrier layer within the recess and contacting the first barrier layer; forming a second insulative layer having an opening exposing at least a portion of the second barrier layer; forming a first conductive structure within the opening in the second insulative layer and contacting the portion of the second barrier layer; forming a high-dielectric-constant layer contacting the first conductive structure; and forming a second conductive structure contacting the high-dielectric-constant layer.