The present invention provides a wiring material for forming wiring on a
substrate by causing coalescence of conductive particles through heating,
and including a binder layer and a wiring layer. The binder layer
contains metal particles and having a binder function to be adhered to
the substrate; and the wiring layer contains metal particles and
laminated on the binder layer. The metal particles of the binder layer
and the metal particles of the wiring layer are in contact with each
other. With this arrangement, it is possible to provide a wiring material
allowing use of a larger variety of materials, while also ensuring low
resistance of wiring and improvement of adhesion between the wiring and
the substrate.