Patent ID: 7407885

Claim:
A method of forming an electrically conductive plug, comprising: providing an opening within electrically insulative material over a node location on a substrate; forming an electrically conductive material within the opening and elevationally over the insulative material; removing some of the conductive material effective to recess an outermost surface of the conductive material to from about 100 Angstroms to about 200 Angstroms from an outermost surface of the insulative material after said removing of some of the conductive material; after removing some of the conductive material, overfilling remaining volume of the opening over the conductive material with an electrically conductive metal material different from that of the conductive material, the overfilling depositing the electrically conductive metal material to be blanketly covering elevationally over all of the insulative material; and polishing the metal material effective to form an electrically conductive plug within the opening comprising the conductive material and the metal material.