Patent ID: 7189615

Claim:
A method of forming a MIM (metal insulator metal) capacitor, comprising: forming first and second apertures within a layer of dielectric material and a layer of etch stop material where the layer of dielectric material overlies the layer of etch stop material and the layer of etch stop material overlies a metallization layer formed within a substrate, where the first aperture is formed down to a copper deposition within the metallization layer of the substrate; forming a layer of copper diffusion barrier material over a top surface of the deposition of copper, where the copper deposition serves as at least some of a bottom electrode of the capacitor, wherein the barrier material is deposited via an electro-less deposition process whereby little to no barrier material forms on exposed surfaces other than the top surface of the copper deposition; forming a layer of capacitor dielectric material over exposed surfaces and down into the first and second apertures; forming a layer of capacitor top electrode material over the layer of capacitor dielectric material; forming a layer of oxide material over the layer of capacitor top electrode material; and performing a CMP and optional etch to remove the layer of oxide material, layer of capacitor top electrode material and layer of capacitor dielectric material back to the layer of dielectric material, thereby exposing at least a portion of the MIM capacitor formed within the first aperture and at least a portion of a resistor formed within the second aperture.