Copper paste and wiring board using the same

摘要

A wiring board comprising: a conductor layer comprising Fe and Cu; and at least one of a radiator, a connection terminal, a cover and a circuit component, connected to the conductor layer through a joining member, which is obtained by coating a copper paste comprising a copper powder, an organic vehicle and an Fe 2 O 3 particle as a conductor layer on a ceramic green sheet and firing it.