US 12,230,736 B2
Semiconductor light-emitting device and semiconductor light-emitting component
Jian-Zhi Chen, Hsinchu (TW); Yen-Chun Tseng, Hsinchu (TW); Hui-Fang Kao, Hsinchu (TW); Yao-Ning Chan, Hsinchu (TW); Yi-Tang Lai, Hsinchu (TW); Yun-Chung Chou, Hsinchu (TW); Shih-Chang Lee, Hsinchu (TW); and Chen Ou, Hsinchu (TW)
Assigned to EPISTAR CORPORATION, Hsinchu (TW)
Filed by EPISTAR CORPORATION, Hsinchu (TW)
Filed on Mar. 24, 2021, as Appl. No. 17/211,331.
Claims priority of application No. 109109785 (TW), filed on Mar. 24, 2020.
Prior Publication US 2021/0305456 A1, Sep. 30, 2021
Int. Cl. H01L 33/38 (2010.01); H01L 25/075 (2006.01); H01L 33/20 (2010.01); H01L 33/36 (2010.01); H01L 33/30 (2010.01); H01L 33/32 (2010.01); H01L 33/46 (2010.01)
CPC H01L 33/36 (2013.01) [H01L 25/0753 (2013.01); H01L 33/20 (2013.01); H01L 33/385 (2013.01); H01L 33/30 (2013.01); H01L 33/32 (2013.01); H01L 33/46 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A semiconductor light-emitting device, comprising:
a first semiconductor contact layer having a first upper surface comprising a first region and a second region;
a semiconductor light-emitting stack located on the first region and not located on the second region, and comprising an active layer;
a first-conductivity-type contact structure located on the second region and electrically connected to the first semiconductor contact layer;
a second semiconductor contact layer located on the semiconductor light-emitting stack;
a second-conductivity-type contact structure located on the semiconductor light-emitting stack and electrically connected to the second semiconductor contact layer; and
a first electrode pad located on and electrically connected to the first-conductivity-type contact structure;
wherein the first-conductivity-type contact structure has a first side surface, a first bottom surface and a first top surface, and the active layer has a second bottom surface and a second top surface, and the first bottom surface is lower than the second bottom surface, and the first top surface is higher than the second top surface in a cross-sectional view of the semiconductor light-emitting device,
wherein the first electrode pad has a first width, the first-conductivity-type contact structure has a second width less than the first width, and the first electrode pad covers the first side surface, and
wherein the first-conductivity-type contact structure has a first top-view area, the first electrode pad has a second top-view area greater than the first top-view area.