Monolithic white and full-color light emitting diodes using...

Semiconductor device manufacturing: process – Making device or circuit emissive of nonelectrical signal – Making emissive array

Reexamination Certificate

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C257S014000, C257SE21404, C257SE33008

Reexamination Certificate

active

07851242

ABSTRACT:
An embodiment is a method and apparatus for a white or full-color light-emitting diode. First single or multiple quantum wells (QWs) at a first wavelength are formed at an active region between a p-type layer and an n-type layer of a light-emitting diode. Multiple passive quantum wells (QWs) are formed within the p-type layer or the n-type layer. The multiple passive QWs are optically pumped by the first or single multiple QWs to generate a desired color.

REFERENCES:
patent: 5434700 (1995-07-01), Yoo
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S.C. Shei, et al., “Emission Mechanism of Mixed-Color InGaN/GaN Multi-Quantum-Well Light-Emitting Diodes”, Jpn. J. of Appl. Phys., vol. 45, No. 4A, pp. 2463-2466, 2006.
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I. Ozden, et al., “A Dual-Wavelength Indium Gallium Nitride Quantum Well Light Emitting Diode”, Appl. Phys. Letter, vol. 79, No. 16, pp. 2532-2534, Oct. 2001.
T. Shioda, et al. “GaN Selective Area Metal-Organic Vapor Phase Epitaxy: Prediction of Growth Rate Enhancement by Vapor Phase Diffusion Model”, Jpn. J. of Appl. Phys. vol. 46, No. 43, pp. L1045-L1047, 2007.

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