Patent ID: 8264062

Claim:
A semiconductor device comprising: a first interlayer insulating film formed over a semiconductor substrate; a first capacitor recess and a wiring trench formed through the first interlayer insulating film; a lower electrode embedded in the first capacitor recess; a first wiring embedded in the wiring trench; a first etching stopper film disposed over the first interlayer insulating film; a via layer insulating film disposed over the first etching stopper film and made of insulating material having an etching resistance different from an etching resistance of the first etching stopper film; a first via hole formed through the via layer insulating film and the first etching stopper film and reaching an upper surface of the first wiring; a first plug made of conductive material embedded in the first via hole; a second capacitor recess formed through the via layer insulating film and reaching the first etching stopper film, the second capacitor recess at least partially overlapping the lower electrode as viewed in plan; an upper electrode including a first barrier metal film and a first conductive film, the first barrier metal film covering a bottom surface and a side surface of the second capacitor recess and a partial upper surface of the via layer insulating film continuous with the second capacitor recess, the first conductive film being deposited on the first barrier metal film and being continuous from a portion filing the second capacitor recess to a portion deposited on the barrier metal film covering the partial upper surface of the via layer insulating film, the upper electrode and the lower electrode constituting a capacitor comprising the first etching stopper film as a capacitor dielectric film; and a second wiring formed over the via layer insulating film and connected to the first plug, the second wiring including a second barrier metal film and a second conductive film, the second barrier metal film being deposited on the first plug and made of a same material as the first barrier metal film, and the second conductive film being deposited on the second barrier metal film and made of a same material as the first conductive film, wherein an upper surface of the upper electrode has a recess reflecting a shape of the bottom surface and the side surface of the second capacitor recess.