| 摘要 |
PROBLEM TO BE SOLVED: To reduce ESR in a solid electrolytic capacitor used for each kind of electronic equipment. SOLUTION: The solid electrolytic capacitor comprises: a flat element 1; an anode comb terminal 6 and a cathode comb terminal 7 where an anode electrode 4 and a cathode electrode 5 provided at the element 1 are joined to an upper surface; and a packaging resin 8 for covering them. A pair of junctions 6b for wrapping the anode electrode 4 from both sides is provided at an element mount section 6a of the anode comb terminal 6 where the anode electrode 4 of the element 1 is mounted. The tip of the junction 6b and the anode electrode 4 are joined by laser welding. By this configuration where a relationship (A/B) between the width (A) of the tip of the junction 6b to be joined and the diameter (B) of a welded trace ranges from 0.5 to 1.5, an amount of heat in welding does not escape and is concentrated at the welded part 6c, thus obtaining a stable welded state, thus improving and reducing ESR. COPYRIGHT: (C)2009,JPO&INPIT
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