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:
Aug. 24, 2004
Filed:
Jan. 10, 2003
Shi-Ming Chen, Tainan, TW;
Chun-Liang Lin, Tainan, TW;
Wen-Bin Chen, Changhua, TW;
Yan-Kuin Su, Tainan, TW;
Epitech Corporation, Ltd., Hsinshi, TW;
Abstract
A lateral current blocking light emitting diode (LED) and a method of making the same are disclosed. The present invention features in that a trench is formed between the two electrodes via the technique of such as etching, wherein the depth of the trench reaches to at least the active layer, thereby blocking the lateral current between the two electrodes. With the use of the present invention, the possibility of the current passing through the active layer can be increased, thereby improving the brightness of the LED; and the chance of the photons emitted from the lateral of the trench can be raised wherein the photons are generated from the active layer, thereby increasing the output efficiency of the photons generated from the active layer.