Patent ID: 6984301

Claim:
A method of forming at least one capacitor construction, comprising: providing a semiconductor substrate; the substrate comprising an electrically insulative mass; forming a first electrically conductive material over the electrically insulative mass; forming at least one opening extending through the first electrically conductive material and into the electrically insulative mass; forming a second electrically conductive material to be within the opening but not over the first electrically conductive material; exposing at least the second of the first and second electrically conductive materials to an electrolytic solution while providing electrical current through the first and second conductive materials; a substance being selectively electroplated onto the second electrically conductive material relative to the first electrically conductive material during the exposing of at least the second electrically conductive material to the electrolytic solution; removing the first electrically conductive material from over the mass; and after removing the first electrically conductive material, forming a pair of layers over the substance; a first of the pair of layers being a dielectric layer and a second of the pair of layers being a conductive layer the conductive layer; being separated from the substance by the dielectric layer, and being capacitively coupled with the substance: and wherein: the substrate comprises the electrically insulative mass over a conductive first pedestal; the at least one opening is formed to expose an upper surface of the conductive first pedestal; the second electrically conductive material is formed as at least one sacrificial spacer electrically connecting the conductive first pedestal to the first electrically conductive material; the at least one sacrificial spacer is removed after forming the substance to leave a second pedestal comprising the substance; and the dielectric layer and conductive layer are formed along sidewalls of the second pedestal.