公开(公告)号：US20200251640A1

公开(公告)日：2020-08-06

申请号：US16777796

申请日：2020-01-30

Applicant: Lextar Electronics Corporation ,  ULTRA DISPLAY TECHNOLOGY CO., LTD.

Inventor： Shiou-Yi KUO ,  Jian-Chin LIANG ,  Shen-De CHEN

IPC: H01L33/62 ,  H01L33/00

Abstract: A light emitting diode includes an active layer, a first type semiconductor layer, a second type semiconductor layer, a coupling layer, and a sacrificial thin film. The first type semiconductor layer and the second type semiconductor layer are disposed at opposite sides of the active layer. The coupling layer is disposed on the second type semiconductor layer. The sacrificial thin film is disposed on the coupling layer, in which the coupling layer is disposed between the sacrificial thin film and the second type semiconductor layer, and the sacrificial thin film has a thickness less than a total thickness of the first type semiconductor layer, the active layer, the second type semiconductor layer and the coupling layer.