Patent ID: 8421233

Claim:
A semiconductor device comprising: a first interlayer insulating film provided on a semiconductor substrate; a lower-layer wire provided on the first interlayer insulating film; a second interlayer insulating film provided on the first interlayer insulating film and the lower-layer wire and including an opening over a portion of the lower-layer wire; an upper-layer wire provided on the second interlayer insulating film and including a first wire portion and a first wide portion whose wire width is greater than the first wire portion; and a contact formation portion formed in the opening and including at least one contact portion for connecting the lower-layer wire and the first wide portion with each other, wherein the contact formation portion has a planar shape of which a length in a direction parallel to a wire width direction of the first wide portion is greater than a length in a direction parallel to a wire length direction of the first wide portion, the first wide portion is provided in an end portion of the upper-layer wire, and a second distance is greater than a first distance, where the first distance denotes a planar distance between the contact formation portion and a wire end of the upper-layer wire, and the second distance denotes a shortest planar distance from a boundary between the first wire portion and the first wide portion to the contact formation portion.