Patent ID: 6583054
Filing Date: 2003-06-24
Classification: H01L

Abstract:
A method for forming conductive lines in a semiconductor device comprising the steps of:(a) forming a first conductive line on a substrate; (b) forming a first single insulating layer on the substrate as well as on the first conductive line; (c) etching the first single insulating layer on the first conductive line to form a first opening; (d) forming a second insulating layer on the first single insulating layer to be in contact with the upper part of the first opening, thereby sealing the first opening and defining a void at a lower part of the first opening; (e) etching the first single and second insulating layers corresponding to the first conductive line to form a second opening and at the same time extend the first opening so as to expose the first conductive line; and (f) forming a second conductive line within the first and second openings so as to be connected with the first conductive line.