Patent ID: 7611983
Filing Date: 2009-11-03
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor substrate; an impurity diffusion layer formed on a surface of said semiconductor substrate; transistors in which said impurity diffusion layer is a source diffusion layer or a drain diffusion layer; an element isolation film above the semiconductor substrate; a first insulating film covering said transistors, wherein a hollow portion extending over said impurity diffusion layer and a contact hole extending upward from said hollow portion to a surface of said first insulating film are formed in said first insulating film; a conductive film formed in said hollow portion; a contact plug formed in said contact hole, and connecting electrically to said impurity diffusion layer, wherein said conductive film includes the same material as a material included said contact plug; and a second insulating film formed at one side of the hollow portion, wherein at least a portion of the second insulating film is provided above the element isolation film and under the first insulating film.