Patent ID: 8940628
Filing Date: 2015-01-27
Classification: B82Y,C01B,H01L,Y10S

Abstract:
1. A method of manufacturing an interconnection, the method comprising: forming a via which penetrates an interlayer insulation film on a substrate; forming an underlying film in the via; removing the underlying film on a bottom part of the via; forming a catalyst metal inactivation film on the underlying film; removing the catalyst metal inactivation film on the bottom part of the via; forming a catalyst metal film on the bottom part of the via on which the catalyst metal inactivation film is removed; performing a first plasma treatment and a second plasma treatment using a gas not containing carbon on a member in which the catalyst metal film is formed; forming a graphite layer on the catalyst metal film after the first and second plasma treatment processes; and causing a growth of a carbon nanotube from the catalyst metal film on which the graphite layer is formed, wherein a plasma gas pressure of the first plasma treatment is higher than that of the second plasma treatment.