Patent ID: 8766312
Filing Date: 2014-07-01
Classification: H01L

Abstract:
1. A light-emitting device comprising a plurality of light-emitting elements provided on a support substrate, each of the light-emitting elements comprising a transparent crystal substrate, a semiconductor layer, an insulating layer, vertical conductors, and through electrodes, the transparent crystal substrate having a light-emitting surface at one side thereof, the semiconductor layer having a multilayer structure having a p-type semiconductor layer and an n-type semiconductor layer and being disposed on the other side of the transparent crystal substrate opposite from the light-emitting surface, the insulating layer covering the semiconductor layer, the vertical conductors including a first vertical conductor and a second vertical conductor, the first vertical conductor having one end and the other end, the first vertical conductor passing through the insulating layer, said one end of the first vertical conductor connected to a first surface electrode provided on the n-type semiconductor layer, the second vertical conductor having one end and the other end, the second vertical conductor passing through the insulating layer, said one end of the second vertical conductor connected to a second surface electrode provided on the p-type semiconductor layer, the support substrate having a substrate part and the through electrodes and being disposed on the insulating layer, the through electrodes including a first though electrode and a second through electrode, the first through electrode having one end and the other end, said first through electrode passing through the substrate part, said one end of the first through electrode connected to the other end of the first vertical conductor, the second through electrode having one end and the other end, said second through electrode passing through the substrate part, said one end of the second through electrode connected to the other end of the second vertical conductor, the other end of the first vertical conductor being projected from a surface of the insulating layer and connected to said one end of the first through electrode inside the support substrate, and the other end of the second vertical conductor being projected from the surface of the insulating layer and connected to said one end of the second through electrode inside the support substrate, wherein the through electrodes and the vertical conductors are expansion metallic bodies containing a metallic component that expands upon solidification, the metallic component including Bi and at least one component selected from the group consisting of Ga, Sb, Ag, Cu, and Ge, wherein the expansion metallic bodies are formed by a molten metal filling process.