The present invention provides an electroconductive paste that can contain
a high proportion of an electroconductive powder, has excellent
electroconductivity reliability and migration resistance, has a highly
competitive price due to a reduced amount of silver plating, and is
suitable for use in solder electrode formation, an electroconductive
adhesive, etc. The electroconductive paste of the present invention
comprises a binder and an electroconductive powder containing 80 to 97 wt
% of a substantially spherical silver-coated copper powder in which the
surface of a copper powder is coated with silver and the surface thereof
is further coated with 0.02 to 0.5 wt % relative to the copper powder of
a fatty acid, and 3 to 20 wt % of a flat-shaped silver-coated copper
powder in which the surface of a copper powder is coated with silver and
the surface thereof is further coated with 0.02 to 1.2 wt % relative to
the copper powder of a fatty acid.