Patent ID: 8382333
Filing Date: 2013-02-26
Classification: F21K,F21V,F21Y,H05K

Abstract:
1. A light emitting device, comprising: a heat dissipating plate having first and second regions, said first region having a mesa with a first top surface, said second region having a second top surface, said first top surface being higher than said second top surface; a circuit board disposed above said heat dissipating plate, and including a first area that has a through hole to permit said mesa to extend therethrough and that directly contacts said second top surface of said second region of said heat dissipating plate, and a second area that does not contact said heat dissipating plate; a light emitting element disposed on said mesa of said heat dissipating plate and electrically connected to said circuit board: and a eutectic alloy layer between said light emitting element and said mesa; wherein said light emitting element is soldered to said heat dissipating plate and said circuit board using a low melting point solder which is also compressed into the eutectic alloy layer.