Patent ID: 7253075

Claim:
A method of manufacturing a semiconductor device including a plurality of capacitors, comprising: forming a lower conductive film on a semiconductor substrate, the lower conductive film serving as a lower electrode; forming a capacitor insulation film on the lower conductive film, the capacitor insulation film including one of a single layer and a multilayer dielectric layer and varying in one of material and structure in different capacitor forming regions; forming an upper conductive film on the capacitor insulation film, the upper conductive film serving as an upper electrode; forming each of the lower electrodes of said plurality of the capacitors by etching the upper conductive film and the capacitor insulating film, then the lower conductive film into a lower electrode pattern; and forming each of the upper electrodes of said plurality of the capacitors by etching the upper conductive film into an upper electrode pattern, wherein said forming the capacitor insulation film includes forming a first capacitor insulation film on part of the lower conductive film, and forming a second capacitor insulation film on another part of the lower conductive film, the second capacitor insulation film being formed of a material different from the first capacitor insulation film.