| 摘要 |
PURPOSE:To obtain a light emitting diode (LED) having satisfactory performance by making rough the surface of stem which is in contact with the lens forming resin and by obtaining close contact at the interface. CONSTITUTION:An electrode 8 is connected to the upper end of anode lead 4 through a bonding wire 9, while a lens forming resin 10 which hermetically seals an LED7 and wire 9 is mounted to a stem 1. By making rough the upper surface of the stem 1 which is in contact with the resin 10, close contactness at the interface between the resin 10 and stem 1 can be improved. Thereby, migration of moisture from the interface can be prevented, and deterioration of LED characteristics can also be prevented and moreover crack of resin 10 from the stem 1 can be prevented. |
