Patent ID: 7384153

Claim:
A light source device, comprising: a light-emitting element; a support member having the light-emitting element mounted thereto; a heat slag, the heat slag being non-electrically conductive; joining portions connected to the heat slag, the joining portions being joining surfaces adapted for solder balls, the joining portions defining gaps therebetween; solder balls connected to the joining portions, wherein the heat generated by the light-emitting element is conducted to the solder balls via the heat slag; and a thermally conductive filling material injected in the gaps between the joining portions, the thermally conductive filling material being connected to the heat slag via the joining portions, the thermally conductive filling material being connected to an electrode of the light emitting element, wherein the heat slag is disposed between the thermally conductive filling material and the light emitting element and the thermally conductive filling material conducts heat from the heat slag and an electrode of the light-emitting element.