Patent ID: 7790611

Claim:
A method for forming at least two conductive silicide wires of sub-lithographic dimension comprising: forming a topographic feature of silicon-containing material on a substrate; forming a dielectric cap on the topographic feature; applying a mask structure to the dielectric cap; etching the dielectric cap and the topographic feature selective to the mask structure to form a pattern from the topographic feature and to expose a sidewall portion of said topographic feature, said pattern being a single lithographically defined feature; depositing a metal at said on opposing sides of said sidewall portions of the pattern of said topographic feature that are exposed; forming metal silicide on said opposing sides of said sidewall portions of the pattern of the topographic feature, wherein the metal silicide provides at least two separate metal silicide conductive structures formed on the single lithographically defined feature; removing said dielectric cap layer; and removing said pattern of said topographic feature, wherein the at least two separate metal silicide conductor structures provide the at least two conductive silicide wires, wherein the at least two conductive silicide wires are parallel to one another.