Patent ID: 9159615
Filing Date: 2015-10-13
Classification: H01L

Abstract:
1. A graphene interconnection comprising: an insulating film including an interconnection trench; a catalyst underlying film formed on both side surfaces and the bottom surface of the interconnection trench; a catalyst film formed on the catalyst underlying film in the interconnection trench and filling at least a portion of the interconnection trench; and a graphene layer formed on the catalyst film in the interconnection trench, and including graphene sheets stacked in a direction perpendicularly to a bottom surface of the interconnection trench, wherein the graphene layer has an upper surface higher than an upper surface of the interconnection trench, and a lower surface lower than the upper surface of the interconnection trench, an end portion of a lower portion of the graphene layer is directly contact with the catalyst underlying film, and among the graphene sheets forming the graphene layer, end portions of not less than two graphene sheets are directly contact with the catalyst underlying film.