Patent ID: 6261963
Filing Date: 2001-07-17
Classification: H01L,Y10S

Abstract:
A method of forming a conductive interconnect, the method comprising:forming a first dielectric layer above a structure layer;forming a first opening in the first dielectric layer;forming a first conductive structure in the first opening;forming a second dielectric layer above the first dielectric layer and above the first conductive structure;forming a second opening in the second dielectric layer above at least a portion of the first conductive structure, the second opening having a side surface and a bottom surface;forming at least one barrier metal layer in the second opening on the side surface and on the bottom surface;removing a portion of the at least one barrier metal layer from the bottom surface;forming a second conductive structure in the second opening, the second conductive structure contacting the at least the portion of the first conductive structure; andforming the conductive interconnect by annealing the second conductive structure and the first conductive structure.