Patent ID: 6365504
Filing Date: 2002-04-02
Classification: H01L

Abstract:
A method for fabricating an interconnection between a conductive line and a via plug on an insulating layer, comprising the steps of:(a) forming a conductive line pattern on a upper part of the insulating layer; (b) etching the upper part of the insulating layer and forming a conductive line opening in the upper part of the insulating layer; (c) depositing spacers on the sidewalls of the conductive line opening; (d) formiing a via pattern on the upper part of the insulating layer; the opening of the via pattern being substantially larger than the width of the conductive line opening; (e) etching a lower part of the insulating layer exposed between the spacers and forming a via hole; and (f) filling the conductive line opening and the via hole with a conductive material and forming an interconnection of the conductive line and the via plug.