Ditthavong & Steiner, P.C.
Light-emitting device having patterned substrate and method of manufacturing thereof
A light-emitting device disclosed herein comprises a patterned substrate having a plurality of cones, wherein a space is between two adjacent cones. A light-emitting stack formed on the cones. Furthermore, the cones comprise an area ratio of a top area of the cone and a bottom area of the cone which is less than 0.0064.
Epistar Corporation
H H
H01L H01L
additional inventional
Chung-Ying Dennis Jenq-Dar
Chang Wang Tsay