| 摘要 |
PROBLEM TO BE SOLVED: To obtain an LED lamp having a good directional characteristic in the small number of processes and at good yield. SOLUTION: The LED lamp with a lead electrode is formed in such a way that, in a region in which the lead electrode is not sealed with a molding resin, at least a solder region is used as an object, that protruded burr parts which is generated at a time when a lead electrode is punched and worked is flattened, and that a lusterless plating operation is executed to the surface of the lead electrode. |
