Filling material and filling method using the same

摘要

A filling material includes a support base member and a metal layer, the metal layer including a first metal layer and a second metal layer and being disposed on one side of the support base member, the first metal layer being an aggregate of nano metal particles and having a film thickness enabling melting at a temperature lower than a melting point, the second metal layer being an aggregate of metal particles having a lower melting point than the first metal layer.