Patent ID: 6989304
Filing Date: 2006-01-24
Classification: C23C,H01L

Abstract:
1. A method of manufacturing a semiconductor device comprising: a step of forming an interlayer insulating film on a semiconductor substrate; a step of forming a concave type hole in the interlayer insulating film; a step of forming a first ruthenium film on the inner surface of the hole and the upper surface of the interlayer insulating film by low-pressure and long-throw sputtering; a step of removing the first ruthenium film formed on the interlayer insulating film to form a lower electrode in the hole; a step of forming a dielectric film on the upper surface of the interlayer insulating film and on the lower electrode; a step of forming a ruthenium seed layer on the dielectric film by chemical vapor deposition including conveying of a starting material of an organic ruthenium compound by a bubbling or liquid conveyance method; and a step of forming a second ruthenium film on the seed layer by chemical vapor deposition including conveying of a starting material of an organic ruthenium compound by a solvent conveyance method and forming an upper electrode of the ruthenium seed layer and the second ruthenium film.