Patent ID: 8610143

Claim:
A light emitting device comprising: a light emitting element; a package comprising a portion formed of a thermosetting resin, said portion forming a thermosetting resin side wall of a recess such that said portion is located around said recess, wherein the light emitting element is mounted in the recess formed by the thermosetting resin side wall, and the lowest surface, inside the recess, of the thermosetting resin side wall is lower than the top surface of said light emitting element; a first lead electrode which is exposed at the bottom of the recess and whereon the light emitting element is mounted; and a second lead electrode which is exposed at the bottom of the recess and is electrically connected to the light emitting element; wherein the light emitting element is bonded to the first lead electrode through a eutectic layer, and at least a surface of the first lead electrode is coated with an Ag film, the Ag film being disposed between the first lead electrode and the light emitting element, and at an interface formed between one of said first and second lead electrodes, and a part of the side wall of the recess, such that the Ag film is sandwiched between the side wall of the recess, and said first or second lead electrode, a thickness of the Ag film being in the range from 0.5 μm to 20 μm.