公开(公告)号：US09305906B2

公开(公告)日：2016-04-05

申请号：US14336973

申请日：2014-07-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Pun Jae Choi ,  Sang Bum Lee ,  Jin Bock Lee ,  Yu Seung Kim ,  Sang Yeob Song

IPC: H01L33/56 ,  H01L25/13 ,  H01L33/20 ,  H01L33/38 ,  H01L33/00 ,  H01L33/40 ,  H01L33/44 ,  H01L33/48 ,  H01L33/54 ,  H05B33/08 ,  H01L25/075 ,  H01L33/50

CPC classification number: H01L25/13 ,  H01L25/0753 ,  H01L33/002 ,  H01L33/0025 ,  H01L33/0029 ,  H01L33/08 ,  H01L33/20 ,  H01L33/22 ,  H01L33/382 ,  H01L33/387 ,  H01L33/40 ,  H01L33/44 ,  H01L33/486 ,  H01L33/502 ,  H01L33/504 ,  H01L33/507 ,  H01L33/508 ,  H01L33/54 ,  H01L33/56 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/48465 ,  H01L2224/49175 ,  H01L2224/8592 ,  H01L2924/0002 ,  H01L2924/1461 ,  H01L2924/181 ,  H01L2924/3025 ,  H01L2933/0041 ,  H05B33/0803 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

Abstract: In a semiconductor light emitting device, a light emitting structure includes a first-conductivity type semiconductor layer, an active layer, and a second-conductivity type semiconductor layer, which are sequentially formed on a conductive substrate. A second-conductivity type electrode includes a conductive via and an electrical connection part. The conductive via passes through the first-conductivity type semiconductor layer and the active layer, and is connected to the inside of the second-conductivity type semiconductor layer. The electrical connection part extends from the conductive via and is exposed to the outside of the light emitting structure. An insulator electrically separates the second-conductivity type electrode from the conductive substrate, the first-conductivity type semiconductor layer, and the active layer. A passivation layer is formed to cover at least a side surface of the active layer in the light emitting structure. An uneven structure is formed on a path of light emitted from the active layer.