Patent ID: 6242806
Filing Date: 2001-06-05
Classification: H01L

Abstract:
A semiconductor device comprising:a first impurity region of a first conductivity type formed at a major surface of a semiconductor substrate;a second impurity region of a second conductivity type formed at said major surface spaced from said first impurity region; andan interconnection line includingfirst and second conductive portions formed of a conductive film containing no metal and being in contact with said first and second impurity regions respectively via first and second contact portions, said first and second conductive portions being separated from each other and each of said first and second conductive portions having at least one end portion;a third conductive portion formed of a conductive film containing metal and electrically connected to said first and second impurity regions via said first and second conductive portions without being in contact with partial surfaces of said first and second conductive portions located immediately above said first and second contact portions; andan interlayer insulating film having first and second contact holes that reach said first and second impurity regions respectively formed on said major surface, whereinsaid first and second conductive portions are formed respectively in said first and second contact holes and have first and second extending portions extending on sidewalls of said first and second contact holes respectively,at least one end portion of each of said first and second conductive portions extend over the interlayer insulating film,said third conductive portion is formed on the interlayer insulating film so that the third conductive portion and the respective ends of the first and second conductive portions overlap,said first and second conductive portions are connected only by the third conductive portion, andsaid third conductive portion has openings on said first and second contact holes, and is connected to said first and second extending portions.