Patent ID: 7670943

Claim:
A method of forming an interconnect structure having an embedded liner comprising the steps of: forming a second dielectric layer atop a first dielectric layer having a metallic interconnect embedded therein; forming at least one aperture within said second dielectric layer that extends to the metallic interconnect in said first dielectric layer; forming a first liner material in said at least one aperture; partially forming a first conductive material in said at least one aperture; forming a second liner in the remaining portion of said at least one aperture and said first conductive material; partially removing said second liner material at a bottom surface of said at least one aperture to create a discontinuous interface, while simultaneously depositing a second discontinuous liner, wherein said second discontinuous liner partially covers said bottom surface of said at least one aperture and said second discontinuous liner is missing in a central area of said bottom surface of said at least one aperture; and forming a second conductive material in said at least one aperture.