Patent ID: 8237208
Filing Date: 2012-08-07
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a semiconductor substrate; a first insulating film formed on the semiconductor substrate; a first wiring layer embedded in the first insulating film; a wiring cap film for covering the first wiring layer; a metal-insulator-metal capacitor formed on the wiring cap film; a side wall formed at a periphery of at least one of an upper electrode and a lower electrode of the metal-insulator-metal capacitor; a hydrogen barrier film for covering an upper surface and side surfaces of the metal-insulator-metal capacitor and the side wall; a second insulating film formed on the hydrogen barrier film; conductive plugs passing through the second insulating film and the hydrogen barrier film, one of the conductive plugs being connected to the upper electrode of the metal-insulator-metal capacitor and another one of the conductive plugs being connected to the lower electrode of the metal-insulator-metal capacitor; and a second wiring layer connected to the conductive plugs, the upper electrode of the metal-insulator-metal capacitor, and the lower electrode of the metal-insulator-metal capacitor, wherein the side wall comprises different materials from materials of the hydrogen barrier film.