Patent ID: 7122420

Claim:
A method of forming capacitor constructions, comprising: providing a substrate comprising an insulative material over a silicon-containing base; forming a first electrically conductive material over the substrate; forming openings extending through the first electrically conductive material and into the insulative material; forming a second electrically conductive material within the openings and in electrical contact with the first electrically conductive material, the second electrically conductive material being compositionally different from the first electrically conductive material; providing an electrical bias to the second electrically conductive material and electrically removing some of the electrically biased second electrically conductive material; the electrical bias being provided only with current passing through the first electrically conductive material; some of the second electrically conductive material within the openings becoming electrically isolated from the first electrically conductive material during the electrical removal and remaining within the openings as spaced conductive masses; forming dielectric material within the over the spaced conductive masses; and forming capacitor electrode material over the dielectric material and capacitively separated from the conductive masses.