| 摘要 |
PROBLEM TO BE SOLVED: To easily avoid the electrostatic breakdown, by providing a support board for supporting terminal conductors, making the support board of a resistive material having a lower resistivity than that of air, and specifying the resistance value of the support board between the terminal conductors. SOLUTION: A light emitting diode 1a has a light emitting diode chip 2 as a semiconductor chip, rod-like metal leads 3, 4 as a first and a second terminal conductors and light-permeable resin seal 5, first and second thin metal lead wires 14, 15, and a resistive support board 17 as an envelope. The support board 17 has a low conductivity, resistance of 50 kΩ-50 MΩ between the leads 3, 4 and a resistivity less than that of the air and seal 5. This prevents a high energy from breaking the diode chip 2 and protects it from the electrostatic charge. |
