Patent ID: 6756235
Filing Date: 2004-06-29
Classification: C23C

Abstract:
A metal oxide film formation apparatus comprising:a film formation chamber constituting a closed vessel; evacuation means for evacuating an interior of said film formation chamber to a vacuum degree; a substrate susceptor arranged in said film formation chamber to place a substrate on a surface of which a metal oxide film is to be formed; heating means for heating the substrate set on said substrate susceptor; first supply means for supplying a source gas mixture essentially consisting of organic compound gases containing at least three metals to the surface of the substrate set on said substrate susceptor; and second supply means for supplying an oxidation gas to the surface of the substrate set on said substrate susceptor, wherein said first and second supply means comprise a shower head arranged above said substrate susceptor, and said shower head comprises: a first shower cubicle for temporarily storing a gas supplied by said first supply means; a second shower cubicle for temporarily storing a gas supplied by said second supply means; a plurality of first gas discharge ports communicating with said first shower cubicle; and a plurality of second gas discharge ports communicating with said second shower cubicle.