US 12,255,269 B2
Light emitting device
Huining Wang, Fujian (CN); Hongwei Xia, Fujian (CN); Quanyang Ma, Fujian (CN); Jiali Zhuo, Fujian (CN); Weibin Shi, Fujian (CN); Su-Hui Lin, Fujian (CN); Renlong Yang, Fujian (CN); and Chung-Ying Chang, Fujian (CN)
Assigned to XIAMEN SAN'AN OPTOELECTRONICS CO., LTD., Xiamen (CN)
Filed by XIAMEN SAN'AN OPTOELECTRONICS CO., LTD., Fujian Province (CN)
Filed on Jul. 18, 2022, as Appl. No. 17/867,419.
Claims priority of application No. 202110820138.6 (CN), filed on Jul. 20, 2021.
Prior Publication US 2023/0026786 A1, Jan. 26, 2023
Int. Cl. H01L 33/40 (2010.01); H01L 33/32 (2010.01); H01L 33/42 (2010.01)
CPC H01L 33/405 (2013.01) [H01L 33/42 (2013.01); H01L 33/32 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A light-emitting device, comprising:
a light-emitting laminated structure which includes
a first type semiconductor layer,
a second type semiconductor layer,
an active layer interposed between said first type semiconductor layer and said second type semiconductor layer, and configured to emit a light,
a first electrode disposed on said light-emitting laminated structure, and electrically connected to said first type semiconductor layer,
a second electrode disposed on said light-emitting laminated structure, and electrically connected to said second type semiconductor layer,
wherein
at least said first electrode includes a reflection layer, an electrically conductive layer, and an intermediate layer interposed between said reflection layer and said electrically conductive layer,
said reflection layer is configured to reflect the light that is emitted by said active layer,
said intermediate layer includes a barrier layer which has a plurality of repeating paired layer units, the plurality of repeating paired layer units includes at least two repeating paired layer units that are referred to as a first repeating paired layer unit, and a second repeating paired layer unit, said first repeating paired layer unit is closer to said electrically conductive layer than said second repeating paired layer unit, each of said first repeating paired layer unit and said second repeating paired layer unit includes a platinum layer, a thickness of said platinum layer of said first repeating paired layer unit is greater than a thickness of said platinum layer of said second repeating paired layer unit.