Patent ID: 6573111
Filing Date: 2003-06-03
Classification: H01L

Abstract:
A method for producing a semiconductor device comprising sequentially the steps of:forming a MOS semiconductor device on a silicon substrate, the MOS semiconductor device including a silicide layer; after forming the silicide layer, forming a first insulating film covering the MOS semiconductor device; forming a capacitor element on the first insulating film, the capacitor element comprising a lower electrode, an upper electrode, and a capacitor film interposed between the lower electrode and the upper electrode, and the capacitor film comprising a ferroelectric material; forming a second insulating film covering the first insulating film and the capacitor element; forming contact holes through the first insulating film and the second insulating film over the MOS semiconductor device and the capacitor element; and forming an interconnection layer on the second insulating film for electrically connecting the MOS semiconductor device and the capacitor element to each other, wherein a bottom portion of the interconnection layer comprises a conductive material other than titanium.