Patent ID: 7074717
Filing Date: 2006-07-11
Classification: H01L

Abstract:
1. A method for fabricating at least one conductive structure, comprising: forming an insulation layer comprising a first insulative material over a semiconductor device structure; forming at least one opening in the insulation layer; lining the at least one opening with a second insulative material, the first insulative material being selectively etchable with respect to the second insulative material; substantially filling the at least one opening with at least one conductive material so as to form the at least one conductive structure; forming an insulative cap over the at least one conductive structure from a third insulative material, the first insulative material being selectively etchable with respect to the third insulative material; and removing first insulative material located laterally adjacent to at least one side of the at least one conductive structure to expose a portion of the second insulative material on the at least one side of the at least one conductive structure.