Patent ID: 6348377
Filing Date: 2002-02-19
Classification: H01L

Abstract:
A method of manufacturing a storage electrode in a semiconductor device comprising:forming a contact for a storage electrode in a poly oxide film formed on the semiconductor device and forming a first thin film thereon; forming a core oxide film and an anti-reflective coating film on the first thin film; forming a pattern by etching the anti-reflective coating film, core oxide film and the first thin film so that the poly oxide film is exposed; forming a second thin film on the overall resultant structure; forming a tungsten silicide layer on the second thin film; forming inner and outer walls of the storage electrode by blanket-etching the tungsten silicide film and the second thin film; removing the anti-reflective coating film and the core oxide film; performing a selective metastable polysilicon (SMPS) process so that different grain growths are generated at the inner and outer walls of the storage electrode; and forming a storage electrode by performing an annealing process in the storage electrode.