Invention Grant
- Patent Title: Light emitting device with high light extraction efficiency
- Patent Title (中): 具有高光提取效率的发光装置
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Application No.: US12080637Application Date: 2008-04-02
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Publication No.: US07652296B2Publication Date: 2010-01-26
- Inventor: Yuan-Fa Chu
- Applicant: Yuan-Fa Chu
- Applicant Address: TW Chu-Nan, Miao-Li Hsien
- Assignee: Foxsemicon Integrated Technology, Inc.
- Current Assignee: Foxsemicon Integrated Technology, Inc.
- Current Assignee Address: TW Chu-Nan, Miao-Li Hsien
- Agent Clifford O. Chi
- Priority: CN200710200755 20070604
- Main IPC: H01L27/15
- IPC: H01L27/15 ; H01L31/12 ; H01L33/00

Abstract:
An exemplary solid-state light emitting device includes a substrate, a light emitting structure, a first electrode and a second electrode have opposite polarities with each other. The light emitting structure is formed on the substrate and includes a first-type semiconductor layer and a second-type semiconductor layer. The first electrode is electrically connected with the first-type semiconductor layer. The second electrode includes a transparent conductive layer formed on the second-type semiconductor layer and a metallic conductive layer formed on a region of the transparent conductive layer and in electrical contact therewith. Any point on the region is no more than 300 micrometers from a nearest part of the metallic conductive layer, and an exposed portion uncovered by the metallic conductive layer of the region has an area of at least 80% of a total area of the transparent conductive layer.
Public/Granted literature
- US20080296603A1 Light emitting device with high light extraction efficiency Public/Granted day:2008-12-04
Information query
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