Patent ID: 8754475

Claim:
A semiconductor device, comprising: a semiconductor substrate; and a first area and a second area which are respectively provided on the semiconductor substrate, the first area including: a first metal wiring in a first wiring layer above the semiconductor substrate and having a first width; a second metal wiring in a second wiring layer above the first wiring layer and having the first width; and a first contact between the first wiring layer and the second wiring layer, connecting the first metal wiring and the second metal wiring, and having a second width equal to or less than the first width, and the second area including: a third metal wiring having a metal film and a barrier metal film, the third metal wiring extending in a thickness direction from a bottom surface of the first wiring layer to an upper surface of the second wiring layer, and having a third width along the entire thickness thereof, the third width being wider than the first width, the barrier metal film being on the bottom surface of the first wiring layer and a side surface of the metal film, the metal film extending from an upper surface of the barrier metal film on the bottom surface of the first wiring layer to the upper surface of the second wiring layer.