Semiconductor chip, semiconductor mounting module, mobile communication device, and process for producing semiconductor chip

摘要

A semiconductor chip comprising a capacitor capable of effectively controlling the voltage drop of an LSI is provided. A semiconductor substrate is provided with an element electrode having at least its surface constituted of an aluminum electrode. The surface of the aluminum electrode is roughened. An oxide film is provided on the aluminum electrode. A conductive film is provided on the oxide film. The aluminum electrode, oxide film and conductive film form a capacitor.