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. 15, 2009
Filed:
Jun. 20, 2006
Ming-sheng Chen, Tao-Yung Hsien, TW;
Liang-wen Wu, Tao-Yung Hsien, TW;
Fen-ren Chien, Tao-Yung Hsien, TW;
Ming-Sheng Chen, Tao-Yung Hsien, TW;
Liang-Wen Wu, Tao-Yung Hsien, TW;
Fen-Ren Chien, Tao-Yung Hsien, TW;
Formosa Epitaxy Incorporation, Tao-Yung Hsien, TW;
Abstract
A light-emitting diode chip (LED chip) including a substrate, an electrostatic conducting layer, a first type doped semiconductor layer, an active layer, a second type doped semiconductor layer, a first electrode and a second electrode is provided. The electrostatic conducting layer is disposed on the substrate, while the first type doped semiconductor layer is disposed on a partial area of the electrostatic conducting layer. Besides, the active layer is disposed on a partial area of the first type doped semiconductor layer, while the second type doped semiconductor layer is disposed on the active layer. In addition, the first electrode is disposed on the first type doped semiconductor layer, while the second electrode is disposed on the second type doped semiconductor layer. The LED chip of the present invention has an electrostatic conducting layer, which protects the LED from electrostatic discharge damage (ESD damage).