Patent ID: 7675075
Filing Date: 2010-03-09
Classification: F21K,H01L

Abstract:
1. A semiconductor light emitting device comprising: a base substrate made of a highly heat-conductive material; and a pair of power supply terminal thin-film layers, each being provided on different areas of a first main surface of the base substrate, and the pair of power supply terminal thin-film layers being electrically connected to each other via first and second through holes provided in the base substrate, wherein a second main surface of the base substrate has provided thereon a semiconductor multilayer epitaxial structure including a first conductive layer, a light emitting layer, and a second conductive layer formed in the stated order, the multilayer epitaxial structure is mounted on the base substrate in such a manner that a last epitaxially-grown layer having a structure characteristic of being grown on a single-crystal substrate different from the base substrate is positioned closer to the base substrate than a portion of a first epitaxially-grown layer, a first electrode thin-film layer is in contact with the first conductive layer, a second electrode thin-film layer is in contact with the second conductive layer, a phosphor film covers the semiconductor multilayer epitaxial structure, and a first thin-film layer and a second thin-film layer electrically connect the first electrode thin-film layer and the second electrode thin-film layer respectively via the through-holes, wherein the base substrate is made of one of SiC, AlN, GaN, BN, Si, and sapphire.