Patent ID: 6753241
Filing Date: 2004-06-22
Classification: H01L

Abstract:
A method of forming a contact opening to a conductive runner comprising:forming a conductive runner having an outer contact opening target area at a first elevation over a semiconductive substrate; forming insulating material over the conductive runner; forming at least one conductive plug using the insulating material laterally adjacent the outer contact opening target area, and the at least one conductive plug extending upward to less than the first elevation, the at least one conductive plug being formed within a contact opening in the insulating material which is essentially self aligned at and to the semiconductive substrate at two locations disposed laterally of the conductive runner; forming an insulative material atop the conductive runner and the at least one conductive plug; and forming a contact opening to and overlapping the outer contact opening target area and the at least one conductive plug through the insulative material overlying the conductive runner and the at least one conductive plug.