Patent ID: 6344400
Filing Date: 2002-02-05
Classification: H01L

Abstract:
A method of manufacturing a capacitor, comprising the steps of:(a) processing a predetermined film made of a material having a workability greater than a workability of a noble metal film to form a structure in a region in which a first electrode of a capacitor is to be formed on a main surface of an underlying layer; (b) substituting a noble metal element for a predetermined element contained in said structure, thereby forming said first electrode; (c) forming a capacitor dielectric film made of an oxide on said first electrode after said step (b); and (d) forming a second electrode of said capacitor on said capacitor dielectric film, wherein said step (b) is executed by exposing said first electrode into a noble metal halide atmosphere while heating said first electrode; and at step (b), said noble metal halide is generated by causing a noble metal element and a halogen gas to react to each other in a reaction chamber in which said capacitor is put.