The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2004
Filed:
Feb. 04, 2003
Kuang-Neng Yang, Pingjen, TW;
Pai-Hsiang Wang, Jungli, TW;
Chih-Sung Chang, Hsinchu, TW;
Tzer-Perng Chen, Hsinchu, TW;
United Epitaxy Company Ltd., Hsinchu, TW;
Abstract
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.