Birch, Stewart, Kolasch & Birch, LLP
LED stack manufacturing method and its structure thereof
A LED stacking manufacturing method and its structure thereof, mainly uses a stacking method to integrate the epitaxial layer and the high-thermal-conductive substrate by twice bonding process, and the converted epitaxial layer of the temporary bonded substrate replaces the epitaxial wafer growth substrate, and the second bonded layer of the etch stop layer of the epitaxial layer is bonded with the second bonded layer of the high-thermal-conductive substrate to form an alloy layer with permanent connection, and then the temporary bonded substrate is removed, such that the process completes the integration of the epitaxial layer and the high-thermal-conductive substrate and makes the ohmic contact layer to face upward to provide a better reliability and efficiency of optical output of the LED.
United Epitaxy Company Ltd.
H H
H01L H01L
inventional inventional
Kuang-Neng Tzer-Perng Chih-Sung Pai-Hsiang
Yang Chen Chang Wang