Patent ID: 6521494
Filing Date: 2003-02-18
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device including a semiconductor substrate and a plurality of memory cells each having a capacitor formed with said semiconductor substrate, comprising the steps of:forming a deposition preventing film on an insulating film formed over said semiconductor substrate; forming a plurality of holes in said insulating film in such a manner as to penetrate through said deposition preventing film; burying said holes in said insulating film by a first conductive material by chemical vapor deposition by utilizing said deposition preventing film; removing said deposition preventing film and said insulating film to expose said first conductive material buried, and forming a plurality of first electrodes isolated from one another; forming a dielectric film on said first electrodes at a predetermined temperature, said first electrodes being made of Ru, Pt or Ir that does not lose conduction even when exposed to said predetermined temperature for forming said dielectric film; and forming a film of a second conductive material to serve as second electrodes on said dielectric film; said first and second electrodes and said dielectric film together constituting said capacitors.