Patent ID: 6086951
Filing Date: 2000-07-11
Classification: H01L

Abstract:
A method of forming a metallic capacitor, comprising the steps of:forming a patterned metallic layer over an inter-layer dielectric, wherein the patterned metallic layer is composed of the lower electrode of a capacitor and a metal conductive line, and there are gaps that expose a portion of the inter-layer dielectric between the lower electrode and the metal conductive line;depositing oxide material to fill the gaps, and thus forming a first oxide layer;forming a second oxide layer over the metal conductive line, the first oxide layer and the lower electrode, such that the second oxide layer also has an opening that exposes a portion of the lower electrode;forming a thin dielectric film over the lower electrode and the second oxide layer; andforming the upper electrode of a capacitor over the thin dielectric film.