Patent ID: 7348234
Filing Date: 2008-03-25
Classification: H01L,Y10S

Abstract:
1. A method of forming at least one capacitor construction, comprising: providing a semiconductor substrate; the substrate comprising an electrically insulative mass over a conductive pedestal; forming a first electrically conductive material over the electrically insulative mass; forming an opening extending through the first electrically conductive material and into the electrically insulative mass to expose an upper surface of the conductive pedestal; forming a second electrically conductive material to be within the opening and over the upper surface of the conductive pedestal, the second electrically conductive material also being over the first electrically conductive material; removing the second electrically conductive material from over the first electrically conductive material and from over at least a portion of the upper surface of the conductive pedestal, the remaining second electrically conductive material being an electrically conductive bridge electrically connecting the conductive pedestal with the first electrically conductive material; exposing the second electrically conductive material and conductive pedestal upper surface to an electrolytic solution while providing electrical current through the first conductive material, second conductive material and conductive pedestal; a substance being selectively electroplated onto at least one of the second electrically conductive material and pedestal upper surface relative to the first electrically conductive material during the exposure to the electrolytic solution; removing at least some of the first and second electrically conductive materials from over the mass and beside the substance; and after removing the at least some of the first and second electrically conductive materials, 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.