Patent ID: 9093501
Filing Date: 2015-07-28
Classification: H01L

Abstract:
1. A method of forming a semiconductor device, the method comprising: forming a plurality of substantially equal-spaced first spacers having a first pitch over a substrate; forming a plurality of substantially equal-spaced first metal interconnecting wires having a second pitch by utilizing the first spacers; forming a plurality of substantially equal-spaced second spacers in such a way to abut, respectively, the plurality of first metal interconnecting wires and define a plurality of substantially equal-spaced trenches alternatingly located among the first metal interconnecting wires and bounded by the second spacers; forming a plurality of second metal interconnecting wires disposed, respectively, within the trenches; removing the second spacers, thereby defining thereat a plurality of substantially equal-spaced channels; and forming dielectric insulation layers within the channels.