Patent ID: 8138083

Claim:
An interconnect structure comprising: a dielectric material having at least one conductively filled feature located therein; a diffusion barrier separating the at least on conductively filled feature from said dielectric material; and an electromigration (EM) preventing liner located within said at least one conductively filled feature that at least partially separates a first conductive region of said at least one conductively filled feature from a second conductive region of said at least one conductively filled feature, wherein said at least one conductively filled feature and said EM preventing liner are confined in an opening that is formed within said dielectric material, said first conductive region and said second conductive region are comprised of a same conductive material, said EM preventing liner is U-shaped and is in direct contact only with an upper portion of a vertical sidewall of the diffusion barrier and wherein no portion of the EM preventing liner is in contact with said dielectric material.