Patent ID: 7832069

Claim:
A method of manufacturing a capacitor device, comprising: forming a first solder diffusion prevention conductive film on or above a substrate, and serving as a lower electrode; patterning the first solder diffusion prevention conductive film, thus removing a portion thereof where a connection portion of an upper electrode for a capacitor is disposed, and thus forming the lower electrode for the capacitor in which a predetermined connection portion is delimited; forming a dielectric film covering the lower electrode; patterning the dielectric film, thus forming a dielectric film for a capacitor exposing a portion where a connection portion of the upper electrode is disposed and exposing a connection portion of the lower electrode; forming a second solder diffusion prevention conductive film covering the dielectric film for the capacitor, the second solder diffusion prevention conductive film serving as the upper electrode; patterning the second solder diffusion prevention conductive film, thus exposing the connection portion of the lower electrode, and thus forming the upper electrode for the capacitor having the connection portion in a portion where the lower electrode is removed; forming an insulating film on the upper electrode, the insulating film having first and second contact holes on the connection portion of the upper electrode and the connection portion of the lower electrode, respectively; and forming solder bumps directly contacted with the upper electrode and the lower electrode and electrically connected to the connection portion of the upper electrode and the connection portion of the lower electrode through the first and second contact holes respectively.