Patent ID: 6107670
Filing Date: 2000-08-22
Classification: H01L

Abstract:
A semiconductor device comprising:an element isolation region which is formed in a semiconductor substrate, isolates an element region in said substrate, said element isolation region being made from a first insulator;a semiconductor active region formed in said element region;a second insulator which covers a surface of said first insulator, covers the exposed surface of said element isolation region, and is made from an insulating material different from said first insulator;an interlevel insulating film formed over said second insulator and said semiconductor active region, said interlevel insulating film being made from a third insulator formed from an insulating material different from said second insulator;an opening hole formed in said interlevel insulating film to expose said semiconductor active region and said second insulator therein; andan interconnect formed on said interlevel insulating film to be electrically connected to said semiconductor active region through the opening.