Patent ID: 8375539

Claim:
A method of forming complimentary metal-insulator-metal (MIM) capacitors comprising forming a low capacitance density, high voltage MIM capacitor and a high density capacitor comprising: depositing a plurality of plates and a plurality of dielectric layers interleaved with one another; and etching a portion of an uppermost plate of the plurality of plates while protecting other portions of the uppermost plate, wherein the protected other portions of the uppermost plate forms a top plate of a first metal-insulator-metal (MIM) capacitor and the etching exposes a top plate of a second MIM capacitor, wherein: the depositing a plurality of plates interleaved with a plurality of dielectric layers comprises depositing a first metal plate, a first dielectric layer, a second metal plate, a second dielectric layer and a third metal plate; the first metal plate forms a bottom metal plate of the first MIM capacitor and the second MIM capacitor, simultaneously; the second metal plate forms a floating middle metal plate of the first MIM capacitor and the top plate of the second MIM capacitor, simultaneously; and the third metal plate is the uppermost plate that forms the top plate of the first MIM capacitor.