| 摘要 |
PURPOSE:To dissipate heat easily from a light-emitting diode concentrically mounted with high density by forming a light-emitting diode placing section on the surface, forming a black ceramic layer on the back side and laminating a conductor layer on the black ceramic layer. CONSTITUTION:A light-emitting diode placing section 2 consisting of a band- shaped conductor is shaped at the central section of the surface of a light- emitting diode substrate 1. A light-emitting diode 3 with P-N junctions 3 aligned and arranged on a straight line is fixed onto the light-emitting diode placing section 2 with conductive adhesives 4, and wirings are wired to wire bonding pads 5 shaped near the light-emitting diode by metallic small wires 6. The light- emitting diode substrate 1 is formed in laminated structure in which the surface side consists of a wiring layer 1a using white ceramics as a substrate, the intermediate side a black ceramic layer 1b and the back side a conductor layer 1c. A support board 8 combining a radiator plate is fixed on the back by an adhesive layer 7. |
