Patent ID: 8445355

Claim:
A method of fabricating a metal-insulator-metal (MIM) capacitor, the method comprising: depositing a first interlayer dielectric (ILD) layer having a top surface; forming a plurality of apertures each bounded by a plurality of sidewalls extending from the top surface of the first ILD layer into the first ILD layer; forming dielectric spacers on the sidewalls bounding each of the apertures; after the dielectric spacers are formed on the sidewalls, depositing a layer stack that includes a bottom electrode layer and a capacitor dielectric layer formed on the top surface of the first ILD layer and the sidewalls bounding each of the apertures; forming a block mask that covers a first surface area of the first ILD layer including the apertures and that exposes a second surface area of the first ILD layer surrounding the first surface area; and removing the layer stack from the second surface area to define a perimeter of the layer stack.