Patent ID: 8164160
Filing Date: 2012-04-24
Classification: H01L

Abstract:
1. A semiconductor device having a multilayer wiring structure laminating and disposing a plurality of wires sandwiched by insulating films, the semiconductor device comprising: a plurality of copper wires, disposed in the multilayer wiring structure, each of the copper wires having copper as a main component; an insulating film formed on an uppermost one of the copper wires in the multilayer wiring structure; a first aluminum wire having aluminum as a main component and formed on the insulating film to be electrically connected to the uppermost copper wire via a first plug formed to penetrate through the insulating film; a surface protective film formed on the first aluminum wire and formed with a pad opening exposing a portion of the first aluminum wire as an electrode pad for electrical connection with an external portion; a lower electrode in a metal-insulator-metal (MIM) capacitor, formed of a portion of the uppermost copper wire connected to the first plug; a capacitive film in the MIM capacitor, formed on the lower electrode; an upper electrode in the MIM capacitor, formed on the capacitive film; and a second aluminum wire having aluminum as a main component and formed on the insulating film to be electrically connected to the upper electrode via an upper contact having a main component that is the same material as a main component of the first plug, the upper contact being formed to penetrate through the insulating film in a layer in which the first plug is formed.