Patent ID: 6472757
Filing Date: 2002-10-29
Classification: H01L

Abstract:
An integrated circuit comprising:a semiconductor substrate having a semiconductor device provided thereon; a first dielectric layer formed over the semiconductor substrate having a first opening provided therein including a conductor reservoir volume; a first barrier layer lining the first opening; and a first conductor core filling the first opening and forming a first conductor connected to the semiconductor device; a second dielectric layer formed over the first dielectric layer and having a via opening and a second opening provided therein; a second barrier layer lining the via opening and the second opening except over the first conductor; and a second conductor core filling the via opening and, the second opening to form a via conductor and a second conductor, having the via conductor proximate the conductor reservoir volume at the end of the first conductor after the via conductor whereby conductor material migrates during operation due to electromigration from the conductor reservoir volume into the via conductor and second conductor wherein the volume of the conductor reservoir volume is sized to equal or exceed the volume of the via conductor.