Patent ID: 6395602
Filing Date: 2002-05-28
Classification: H01L

Abstract:
A method of forming a capacitor comprising the following steps:providing an electrically conductive node supported by a semiconductor substrate; forming an insulative material layer over the node; forming a conductive material layer over the insulative material layer; forming a first masking material over the conductive material layer; etching a first opening into the first masking material; forming a spacer within the first opening to narrow the opening; extending the narrowed opening through the conductive material layer and insulative material layer, and to the node; forming an electrically conductive mass within the extended opening to electrical interconnect the node and the conductive material layer; and providing a capacitor dielectric layer and a conductive capacitor plate over the conductive material layer; the capacitor dielectric layer, conductive capacitor plate and conductive material layer together defining the capacitor structure.