Method of improving electromechanical integrity of cathode coating to cathode termination interfaces in solid electrolytic capacitors

摘要

A solid electrolytic capacitor with an anode and a dielectric on the anode. A cathode is on the dielectric and a conductive coating on the dielectric. A cathode lead is electrically connected to the conductive coating by an adhesive selected from the group consisting of a transient liquid phase sinterable material and polymer solder.

主权项

1. A solid electrolytic capacitor comprising:
an anode; a dielectric on said anode; a cathode on said dielectric; a conductive coating directly on said cathode; and a plating directly on said conductive coating wherein said plating is selected from nickel plating and silver plated with nickel; and a cathode lead electrically connected by metallurgical bonds to said plated metal by a transient liquid phase sinterable material wherein said transient liquid phase sintering adhesive comprises at least one member selected from the group consisting of copper, silver, aluminum, gold, platinum, palladium, beryllium, rhodium nickel, cobalt, iron and molybdenum or an alloy of said member.