Patent ID: 7214602
Filing Date: 2007-05-08
Classification: H01G,H01L

Abstract:
1. A method of forming a conductive structure, the method comprising: forming an opening in a substrate, the opening having a lower surface and sidewall; forming an interconnect in the substrate; forming a layer of iridium in the opening in the substrate such that a lower portion of the layer of iridium is on the interconnect and the lower surface of the opening in the substrate, and such that a sidewall portion of the layer of iridium is on the sidewall of the opening in the substrate, wherein the sidewall portion of the layer of iridium extends above the uppermost surface of the lower portion of the layer of iridium, the layer of iridium having a thickness of less than six hundred angstroms; annealing the layer of iridium; removing the sidewall of the opening in the substrate; forming a dielectric layer on both the lower portion and the sidewall portion of the layer of iridium, wherein at least a portion of the dielectric layer is formed directly over the interconnect; and forming a conductive layer on the dielectric layer.