MANUFACTURE OF LEAD TERMINAL AND ELECTRONIC PARTS HAVING THE LEAD TERMINAL

摘要

PURPOSE:To increase weldability of electronic parts to electrode surface by a method wherein solder plate of a portion which becomes a weld portion is removed by inserting one end of a terminal material into a hole of a die and the weld portion only is formed into a flat plate-like body. CONSTITUTION:A terminal raw material 1 has a round bar-shaped metallic core wire 1a. A solder plating 1b is formed on the entire surface thereof. The solder plating 1b of the terminal raw material 1 is removed by a die 2. The solder plating 1b in a weld portion 3 is removed by inserting the end portion of the terminal raw material 1 into a hole 2a of the die 2, and a metallic core wire 1a which is a base is exposed. Thereafter, the weld portion 3 is formed into a flat plate-like body by being pressed down by a press, and cut to a length so as to have a plug-in leg 4 with respect to a rotary board from the terminal raw material 1. There is no solder plating in the weld portion 3, and a lead terminal 1' having a solder plating 1b in the portion of the plug-in leg 4 is obtained. The lead terminal 1' is mounted on an electrode surface 5a of electronic parts 5, such as electric double layer or a button type battery.