Patent ID: 6904675
Filing Date: 2005-06-14
Classification: H01L,Y10T

Abstract:
1. A method of forming a conductive line over a workpiece, the method comprising: forming a dielectric layer having a substantially planar surface; forming a row of windows in the planar surface of the dielectric layer; filling each of the windows with plugs comprising electromigration-inhibiting material to form a row of plugs; removing portions of the dielectric layer to form trenches between adjacent ones of the plugs in the row of plugs; filling the trenches with highly conductive material, the highly conductive material defining electrically conductive segments interposed between and abutting the plugs and interconnecting the row of plugs to form said conductive line; and planarizing the workpiece so that the row of plugs and conductive segments have surfaces substantially coplanar with the dielectric layer surface.