Patent ID: 6188097
Filing Date: 2001-02-13
Classification: H01L,Y10S

Abstract:
A storage node structure for a semiconductor capacitor having a discontinuous first conductive material layer including at least one exposed area exposing a portion of a substrate and a second conductive material layer over said discontinuous first conductive material layer and said at least one exposed area, a thickness of said second conductive material layer over said discontinuous first conductive material layer being greater than a thickness of said second conductive material layer over said portion of said substrate within said at least one exposed area, formed by a method comprising:providing said substrate;depositing said discontinuous first conductive material layer on said substrate, wherein said discontinuous first conductive material layer defines at least one exposed area exposing said portion of said substrate within said discontinuous first conductive material layer; anddepositing said second conductive material layer over said discontinuous first conductive material layer and said at least one exposed area, said second conductive material layer forming on said discontinuous first conductive material layer at a faster rate than on said portion of said substrate within said at least one exposed area.