A solid electrolytic capacitor is provided, which can reduce impedance,
particularly, the ESL and the ESR. In one embodiment, such a solid
electrolytic capacitor comprises a foil-like valve metal substrate formed
with an insulating oxide film on the surface thereof, a valve metal body
whose one end portion region is bonded to one of two opposite end portion
regions of the foil-like valve metal substrate, a conductive metal
substrate whose one end portion region is bonded to the other end portion
region of the foil-like valve metal substrate, a cathode electrode formed
by sequentially laminating at least a solid high molecular polymer
electrolyte layer and a conductive layer on the surface of the foil-like
valve metal substrate, and a cathode lead electrode being drawn out from
the cathode electrode in a direction perpendicular to one major surface
of the foil-like valve metal substrate.