Invention Grant
US08552441B2 AlGaInP light-emitting diode having vertical structure with transparent multilayered reflective films
有权
具有透明多层反射膜的垂直结构的AlGaInP发光二极管
- Patent Title: AlGaInP light-emitting diode having vertical structure with transparent multilayered reflective films
- Patent Title (中): 具有透明多层反射膜的垂直结构的AlGaInP发光二极管
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Application No.: US13213331Application Date: 2011-08-19
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Publication No.: US08552441B2Publication Date: 2013-10-08
- Inventor: Hou-Jun Wu , Yu-Tsai Teng , Po-Hung Tsou , Hsiang-Ping Cheng , Jyh-Chiarng Wu
- Applicant: Hou-Jun Wu , Yu-Tsai Teng , Po-Hung Tsou , Hsiang-Ping Cheng , Jyh-Chiarng Wu
- Applicant Address: CN Xiamen, Fujian
- Assignee: Xiamen Sanan Optoelectronics Technology Co., Ltd.
- Current Assignee: Xiamen Sanan Optoelectronics Technology Co., Ltd.
- Current Assignee Address: CN Xiamen, Fujian
- Agency: Boyle Fredrickson, S.C.
- Priority: CN201010258130 20100820
- Main IPC: H01L33/00
- IPC: H01L33/00

Abstract:
A method for manufacturing the AlGaInP LED having a vertical structure is provided, including: growing, epitaxially, a buffer layer, an n-type contact layer, an n-type textured layer, a confined layer, an active layer, a p-type confined layer and a p-type window layer in that order on a temporary substrate, to form a texturable epitaxial layer; forming a transparent conducting film with periodicity on the p-type window layer of the epitaxial layer, forming a regulated through-hole on the transparent conducting film, and filling the through-hole with a conducting material; forming a total-reflection metal layer on the transparent conducting film; bonding a permanent substrate with the texturable epitaxial layer via a bonding layer, and bring the total-reflection metal layer into contact with the bonding layer; removing the temporary substrate and the buffer layer; forming an n-type extension electrode on the exposed n-type contact layer; removing the n-type contact layer, and forming a pad on the n-type textured layer; and forming a p-type electrode on a back of the permanent substrate. The transparent multilayered film with periodicity provides a greater reflectivity difference and hence brings better results than the conventional reflector consisting of single-layered, or, non-periodic, transparent films; and light-emitting efficiency is enhanced.
Public/Granted literature
- US20120043566A1 AlGaInP Light-Emitting Diode Having Vertical Structure and Method for Manufacturing the Same Public/Granted day:2012-02-23
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