Patent ID: 6924195
Filing Date: 2005-08-02
Classification: H01L

Abstract:
1. A method of forming a capacitor, comprising: providing a semiconductor substrate having an electrical node supported thereby; forming an electrical interconnect in electrical contact with the node, the electrical interconnect comprising conductively-doped silicon; forming a conductive material over the electrical interconnect, the conductive material comprising one or more of titanium, tantalum and tungsten; providing a metallo-organic precursor proximate the conductive material, the metallo-organic precursor comprising one or more of ruthenium, rhodium, iridium, cobalt, palladium, platinum and nickel; exposing the precursor to a reducing atmosphere to release metal from the precursor, the released metal consisting essentially of one or more of ruthenium, rhodium, iridium, cobalt, palladium, platinum arid nickel; depositing the released metal over the conductive material to form a first capacitor electrode; forming a dielectric material over the first capacitor electrode; forming a second capacitor electrode over the dielectric material; wherein the second capacitor electrode comprises metal; and wherein the forming the second capacitor electrode comprises exposing a metal-comprising precursor to an oxidizing atmosphere; and wherein the oxidizing atmosphere improves dielectric properties of the dielectric material.