| 摘要 |
PURPOSE:To obtain a stacked capacitor excellent in characteristics wherein cracks and stress are not generated in an element itself when solid electrolytic capacitors are stacked, by stacking in the manner in which a valve metal foil is connected with a metal plate, and a bent part is formed on one end of the valve metal foil. CONSTITUTION:One tip of a rectangular valve metal foil 2 is folded back as a bent part 2a, and a short segment 2b is formed. The valve metal foils 2 are connected in parallel, by welding, with a straight line type longitudinal segment 1a of a belt type metal plate 1 in the manner in which the short segments 2a are arranged outside so as to keep specified intervals. Dielectric oxide coating film layers 3 are formed on the surface and the rear of the valve metal 2. Semiconductor layers 4 are formed on the parts below a dotted line 4a. Conductor layers 5 are formed on the parts above the dotted line 4a. Thus a solid electrolytic capacitor element 7 is constituted. Two sheets of the capacitor elements 7 are unified in a body by using conductive paste, in the manner in which the bent parts 2a of the two elements are arranged, the short segments 2b are made to face each other, and said segments are dipped in conductive paste bath. Then the capacitor elements 7 and the metal plate 1 are cut out in the part of a dotted line 4b. |
