Electromagnetic noise suppressor, article with electromagnetic noise suppressing function and their manufacturing methods

An article with an electromagnetic noise suppressing function wherein at least a part of the surface of the article is covered by an electromagnetic noise suppressor comprising:

• a base material containing a binding agent, and the base material comprising a surface;
• and
• a composite layer comprising the binding agent that is a part of the base material and a magnetic material integrated with each other and comprising a crystal portion made of nanometer scale crystals of atoms of the magnetic material disposed at a spacing of several angstroms in a crystal lattice, a binding agent portion including the binding agent without the nanometer scale crystals of the atoms of the magnetic material, and a dispersed portion comprising atoms of the magnetic material dispersed without crystallizing in the binding agent;
• the composite layer formed by an application of the magnetic material to the surface of the base material by physical vapor deposition with particle energy in a range from 5 eV to 1000 eV,
• wherein surface resistivity of the composite layer is in a range from 1×101 to 1×1010 Ω/□;
• and
• the composite layer has a thickness in a range from 0.005 μm to 0.3 μm.