Patent ID: 9368392
Filing Date: 2016-06-14
CPC Classification: H01L

Claim Text:
1. A MIM (metal-insulator-metal) capacitor, comprising: a first electrode comprising a bottom capacitor metal layer; a capacitor dielectric layer disposed onto and in direct contact with the bottom capacitor metal layer; a second electrode comprising a top capacitor metal layer disposed onto and in direct contact with the capacitor dielectric layer; a third electrode comprising a middle capacitor metal layer, separated from the top capacitor metal layer by a second capacitor dielectric layer; a capacitor inter-level dielectric (ILD) layer disposed over the top capacitor metal layer; a substantially planar etch stop layer disposed over the capacitor ILD layer; a plurality of vias extending through the capacitor ILD layer to the first electrode and the second electrode; and a plurality of metal wires overlying the plurality of vias, wherein the plurality of metal wires extend through the etch stop layer and have a greater width than the plurality of vias at an interface between the plurality of metal wires and the plurality of vias.