Patent ID: 7750413

Claim:
A semiconductor device comprising a semiconductor substrate, a transistor formed on a surface area of said semiconductor substrate, and a multi-layered interconnection structure including a plurality of interlevel dielectric films and a plurality of interconnect layers overlying said transistor, wherein a high-permeability region is provided in an interlevel dielectric film, wherein: said high-permeability region includes therein a plurality of high-permeability magnetic rods including a high-permeability material embedded in respective film openings, said film openings having an aspect ratio (depth/diameter or a side) of 1 or above and penetrating at least one of said interlevel dielectric films to reach another of said interlevel dielectric films, said high-permeability material is a composite material including a low-permittivity insulating material and a high-permeability magnetic material including an electric conductivity or an insulating property.