Patent ID: 9343641
Filing Date: 2016-05-17
CPC Classification: H01L

Claim Text:
1. An apparatus comprising: a carrier; an adhesion layer next to the carrier, the adhesion layer comprising a first titanium layer that prevents migration of tin; a bonding metal layer next to the adhesion layer, the bonding metal layer comprising a tin layer; a non-reactive barrier metal layer next to the bonding metal layer, the non-reactive barrier metal layer comprising a second titanium layer that prevents migration of tin; an encapsulation layer next to the non-reactive barrier metal layer, the encapsulation layer comprising a platinum layer that prevents migration of silver; a reflective layer encapsulated by the encapsulation layer, the reflective layer comprising a silver layer; a current blocking layer next to the reflective layer; and a light emitting structure next to the current blocking layer and the reflective layer, the light emitting structure comprising an active layer between a p-type layer and an n-type layer; wherein the n-type layer comprises a first gallium-nitride (GaN) layer, a second GaN layer, and an intervening sublayer between the first GaN layer and the second GaN layer; wherein the intervening sublayer comprises an aluminum-gallium-nitride layer doped with silicon (AlGaN:Si); wherein the intervening sublayer is thinner than the first GaN layer, and the intervening sublayer is thinner than the second GaN layer.