Patent ID: 6828190
Filing Date: 2004-12-07
Classification: H01L

Abstract:
A method for manufacturing a capacitor of a semiconductor device, comprising:forming a storage electrode over a semiconductor substrate; forming a high dielectric layer over the storage electrode; forming a plate electrode directly on the high dielectric layer; performing a first post-annealing of the semiconductor substrate under an inert atmosphere at a first temperature; and performing a second post-annealing of the semiconductor substrate, after the first post-annealing, at a second temperature lower than the first temperature in an oxygen environment, the first and second post-annealings being performed in-situ, wherein the plate electrode is formed of one selected from the group consisting of Pt, Ru, Ir, IrO2, RuO2, SrRuO3, CaSrRuO3, BaSrRuO3, an alloy containing Pt, an alloy containing Ru, and an alloy containing Ir.