Patent ID: 6323087
Filing Date: 2001-11-27
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 over a semiconductive substrate;forming at least one conductive plug within insulating material laterally adjacent to the runner target area, the 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 on opposing sides of the conductive runner; andetching a contact opening to and overlapping the runner target area and plug through insulating material overlying the runner and plug; whereinthe conductive runner comprises an outermost surface which defines a conductive runner height outwardly of a substrate outer surface; andthe forming of the conductive plug comprises forming the plug to extend outwardly from the substrate outer surface a distance which is less than the conductive runner height.