Patent ID: 7326261

Claim:
A method of producing a surface-mount capacitor, comprising the steps of: producing a capacitor element by forming a surface-expanding etching layer and a dielectric coating film on a plate or a foil of a valve action metal, thereafter isolating an end portion by an insulating resin to form an anode lead portion, and forming a solid electrolyte layer and a conductive material layer on the dielectric coating film at a center; welding a connecting strip-like plate to the anode lead portion of the capacitor element; forming a nonconductive case having a bottom portion and a side wall portion on a lead frame provided with an anode terminal forming portion and a cathode terminal forming portion, and exposing an upper surface of the lead frame on an inner bottom surface of the nonconductive case; connecting the strip-like plate welded to the capacitor element and the cathode portion of the capacitor element to the lead frame in the nonconductive case; and connecting a cap or an exterior case at least covering an upper side of the nonconductive case to the nonconductive case.