Patent ID: 6258671
Filing Date: 2001-07-10
Classification: H01L

Abstract:
A method of forming sidewall spacers over etched line sidewalls comprising:depositing and etching conductive material over a substrate outer surface to form at least a first plurality of conductive lines, the first plurality of etched conductive lines respectively consisting of a singular conductive mass and at least one dielectric layer;removing at least some capping insulative material from over less than all of the first plurality of etched lines, the capping insulative material having been deposited prior to etching to form the first plurality of etched lines, the first plurality of etched lines having respective sidewalls, resulting of the first plurality of lines from which the insulative material is removed being shorter than first plurality lines from which the insulative material is not removed;forming a layer of insulative spacer material over the first plurality of etched lines; andanisotropically etching the layer of insulative spacer material to provide insulative sidewall spacers over said respective etched line sidewalls, the insulative sidewall spacers which are formed relative to the shorter of the first plurality of lines having reduced spacer widths than would otherwise occur in the presence of the removed insulative material.