Invention Grant
- Patent Title: Light-emitting diode structure with electrode pads of similar surface roughness and method for manufacturing the same
- Patent Title (中): 具有类似表面粗糙度的电极焊盘的发光二极管结构及其制造方法
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Application No.: US13221908Application Date: 2011-08-31
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Publication No.: US09231158B2Publication Date: 2016-01-05
- Inventor: Cheng-Ta Kuo , Kuo-Hui Yu , Chao-Hsing Chen , Tsun-Kai Ko , Chi-Ming Huang , Shih-Wei Yen , Chien-Kai Chung
- Applicant: Cheng-Ta Kuo , Kuo-Hui Yu , Chao-Hsing Chen , Tsun-Kai Ko , Chi-Ming Huang , Shih-Wei Yen , Chien-Kai Chung
- Applicant Address: TW Hsinchu
- Assignee: Epistar Corporation
- Current Assignee: Epistar Corporation
- Current Assignee Address: TW Hsinchu
- Agent Ding Yu Tan
- Priority: TW95150037A 20061229
- Main IPC: H01L21/00
- IPC: H01L21/00 ; H01L33/38 ; H01L33/20

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.
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