Patent ID: 7112839
Filing Date: 2006-09-26
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, comprising the steps of: (a) forming a transistor and a capacitor electrically connected to the transistor on a semiconductor substrate, the capacitor having two electrodes consisting of metal and a capacitor dielectric layer between the two electrodes consisting of oxide dielectric material; (b) forming a temporary protective film on or over the capacitor, the temporary protective film covering the capacitor; (c) subjecting the semiconductor substrate with the temporary protective film to a heat treatment in a reducing atmosphere; (d) removing the temporary protective film; (e) subjecting the semiconductor substrate without the temporary protective film to a heat treatment in an inert gas atmosphere or in a vacuum state; and (f) forming a protective film on or over the capacitor, the protective film covering the capacitor.