Patent ID: 8310817
Filing Date: 2012-11-13
Classification: H01G

Abstract:
1. A method for producing a solid electrolytic capacitor, the solid electrolytic capacitor comprising: a laminate in which capacitor elements each having an anode portion and a cathode portion are laminated together; a resin mold covering the laminate and having an electrically insulating property; and plural pairs of anode terminals and cathode terminals connected to the anode portion and to the cathode portion and protruding from a bottom part of the resin mold, wherein the cathode portions of the respective capacitor elements are electrically connected to each other through an electroconductive material, and wherein the cathode terminals are electrically connected to each cathode portion by a canopy connected to the cathode portion of the capacitor element located in an uppermost layer of the laminate, so as to cover at least a part thereof, and joints extending between the canopy and the cathode terminals in a state in which the joints are separated from side faces of the laminate, the canopy being of such a flat plate shape as to connect the joints, the method comprising the steps of: preparing a first electroconductive sheet patterned with a base portion of a flat plate shape, the cathode terminals and anode terminal equivalents alternately protruding from the base portion, the joints rising from the cathode terminals, and the canopy connected to tip ends of the joints; preparing a second electroconductive sheet patterned with a first mount portion on which the base portion can be mounted, a second mount portion on which the laminate can be mounted, the anode terminals protruding from the second mount portion, and cathode terminal equivalents protruding from the first mount portion; fixing the laminate through a nonconductive material to the second mount portion; laying the first electroconductive sheet onto the second electroconductive sheet so that the base portion coincides with the first mount portion, joining the anode terminal equivalents of the first electroconductive sheet and the anode terminals of the second electroconductive sheet, and joining the cathode terminals of the first electroconductive sheet and the cathode terminal equivalents of the second electroconductive sheet; filling a space between the canopy and the cathode portion of the capacitor element in the uppermost layer of the laminate with the electroconductive material; and covering the laminate by the resin mold, so that the anode terminals and the cathode terminals protrude therefrom.