A method of manufacturing an alloy circuit board including an alloy
circuit made of an alloy of first metal particles and second metal
particles includes forming a first circuit layer, by printing ink
containing first metal particles on a board; stacking a second circuit
layer on the first circuit layer, by printing ink containing second metal
particles on the board; and sintering the first circuit layer and the
second circuit layer by heating so as to form the alloy of the first
metal particles and the second metal particles.