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:
Jan. 05, 2016
Filed:
Aug. 31, 2011
Cheng-ta Kuo, Hsinchu, TW;
Kuo-hui Yu, Chia Yi Hsien, TW;
Chao-hsing Chen, Tainan County, TW;
Tsun-kai Ko, Changhua County, TW;
Chi-ming Huang, Tainan County, TW;
Shih-wei Yen, Tainan County, TW;
Chien-kai Chung, Tainan County, TW;
Cheng-Ta Kuo, Hsinchu, TW;
Kuo-Hui Yu, Chia Yi Hsien, TW;
Chao-Hsing Chen, Tainan County, TW;
Tsun-Kai Ko, Changhua County, TW;
Chi-Ming Huang, Tainan County, TW;
Shih-Wei Yen, Tainan County, TW;
Chien-Kai Chung, Tainan County, TW;
Epistar Corporation, Hsinchu, TW;
Abstract
A light-emitting diode (LED) structure and a method for manufacturing the LED structure are disclosed for promoting the recognition rate of LED chips, wherein a roughness degree of the surface under a first electrode pad of a first conductivity type is made similar to that of the surface under a second electrode pad of a second conductivity type, so that the luster shown from the first electrode pad can be similar to that from the second electrode pad, thus resolving the poor recognition problem of wire-bonding machines caused by different lusters from the first and second electrode pads.