Doped electrodes for DRAM applications

摘要

A metal oxide first electrode layer for a MIM DRAM capacitor is formed wherein the first and/or second electrode layers contain one or more dopants up to a total doping concentration that will not prevent the electrode layers from crystallizing during a subsequent anneal step. One or more of the dopants has a work function greater than about 5.0 eV. One or more of the dopants has a resistivity less than about 1000 muOmegacm. Advantageously, the electrode layers are conductive molybdenum oxide.