Semiconductor device and method of manufacturing the same

摘要

Disclosed herein is a semiconductor device that comprises a semiconductor substrate and a semiconductor substrate and a wiring layer. The wiring is formed on the semiconductor substrate and has a first region and a second region. The first region comprises a conductive film and an insulating film formed by oxidizing a film of the same material as the conductive film and connected to the conductive film. The second region is provided on the first region and includes a wiring. The Gibbs free energy of the wiring decreases less than that of the conductive film when the wiring and conductive film are oxidized.