High brightness led and method for producing the same
First Claim
1. A high brightness LED (light emitting diode), comprising:
- a permanent substrate;
LED epitaxial layers with p-n or n-p junction;
a layered structure formed between said permanent substrate and said LED epitaxial layers, and having properties of reflection, adhesion, diffusion barrier and buffer;
a first electrode and a second electrode formed on proper positions to provide enough energy for said LED epitaxial layers.
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Abstract
The present invention discloses a high brightness LED (light emitting diode) and a method for producing the same. The LED of the present invention primarily includes a permanent substrate, LED epitaxial layers with a p-n or n-p junction structure, a layered structure formed between the permanent substrate and the LED epitaxial layers, a first electrode and a second electrode. The layered structure may include single layer, two layers or three layers. For the three layers structure, a reflective layer, a diffusion barrier and a buffer layer are usually included. These layers may be electrically conductive and formed by one or more thin films. Accordingly, the LED of the present invention can exhibit high brightness and excellent mechanical strength during manufacturing.
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Citations
20 Claims
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1. A high brightness LED (light emitting diode), comprising:
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a permanent substrate;
LED epitaxial layers with p-n or n-p junction;
a layered structure formed between said permanent substrate and said LED epitaxial layers, and having properties of reflection, adhesion, diffusion barrier and buffer;
a first electrode and a second electrode formed on proper positions to provide enough energy for said LED epitaxial layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for producing a high brightness LED, comprising steps of:
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a) providing a temporary substrate for epitaxy;
b) forming LED epitaxial layers on said temporary substrate, wherein said LED epitaxial layers with pn junction;
c) providing a permanent substrate;
d) forming a layered structure between said permanent substrate and said LED epitaxial layers, wherein said layered structure has properties of reflection, adhesion, diffusion barrier and buffer; and
e) forming a first electrode and a second electrode on proper position to supply enough energy for said LED epitaxial layers. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification