Patent ID: 9331249
Filing Date: 2016-05-03
CPC Classification: H01L

Claim Text:
1. A light-emitting device comprising: a metal connecting structure; a barrier layer on the metal connecting structure, the barrier layer comprising a first metal multilayer on the metal connecting structure and a second metal multilayer on the first metal multilayer; a metal reflective layer on the barrier layer; and a light-emitting stack electrically coupled to the metal reflective layer, wherein the first metal multilayer comprises a first metal layer comprising a first metal element and a second metal layer comprising a second metal element, the first metal layer closer to the metal connecting structure than the second metal layer, and the second metal multilayer comprises a third metal layer comprising a third metal element and a fourth metal layer comprising a fourth metal element, the third metal layer closer to the second metal layer than the fourth metal layer, and the first metal element is different from the second metal element, and the third metal element is different from the fourth metal element, and wherein the metal connecting structure and the metal reflective layer comprise the same metal element.