Patent ID: 8617980
Filing Date: 2013-12-31
Classification: H01L

Abstract:
1. A manufacturing method of a semiconductor device, comprising: forming a first wiring layer above a semiconductor substrate; forming an insulating film above the first wiring layer; forming a first hole in the insulating film; forming a first metal on an internal surface of the first hole and on an upper surface of the insulating film, the first metal being connected to the first wiring; forming a second metal layer on the first metal layer in the first hole; forming a third metal layer on the first metal layer located on the upper surface of the insulating film; forming a dielectric insulating film on the third metal layer; and forming a second wiring layer on the dielectric insulating film, wherein the first hole is located in a first area outside of a second area where the third metal layer and the second wiring layer face each other; and the first metal layer located in the second area is flat.