Patent ID: 7301241

Claim:
A semiconductor device comprising: a first insulating film formed over a substrate; a first interconnection buried in at least a surface side of the first insulating film, the first interconnection having a first pattern which is bent at right angle and a second pattern; a second insulating film formed on the first insulating film with the first interconnection buried in, and including a groove-shaped via-hole formed in a region above the first pattern of the first interconnection and a hole-shaped via-hole formed in a region above the second pattern, of the first interconnection, the groove-shaped via-hole having a pattern which is formed along an extending direction of the first interconnection and is bent at a right angle, a width of the groove-shaped via-hole being 20-140% of a width of the hole-shaped via-hole; a first buried conductor filled in the groove-shaped via-hole; and a second buried conductor buried in the hole-shaped via-hole.