公开(公告)号：US20130049034A1

公开(公告)日：2013-02-28

申请号：US13611681

申请日：2012-09-12

Applicant: Yi Chieh LIN

Inventor： Yi Chieh LIN

IPC: H01L33/08

CPC classification number: H01L33/30 ,  H01L33/40

Abstract: This disclosure discloses a light-emitting device. The light-emitting device comprises: a substrate; a first light-emitting stack comprising a first active layer; a bonding interface formed between the substrate and the first light-emitting stack; and a contact structure formed between the first light-emitting stack and the bonding interface and comprising a first contact layer and a second contact layer closer to the bonding interface than the first contact layer; wherein the first contact layer and the second contact layer comprises the same material and the first contact layer has an impurity concentration lower than that of the second contact layer.

Abstract translation: 本公开公开了一种发光装置。 发光装置包括：基板; 包括第一有源层的第一发光堆叠; 形成在所述基板和所述第一发光叠层之间的接合界面; 以及形成在第一发光叠层和接合界面之间的接触结构，并且包括比第一接触层更靠近接合界面的第一接触层和第二接触层; 其中所述第一接触层和所述第二接触层包含相同的材料，并且所述第一接触层的杂质浓度低于所述第二接触层的杂质浓度。