SEMICONDUCTOR LIGHT-EMITTING DEVICE AND A METHOD OF FABRICATING THE SAME
First Claim
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1. A semiconductor light-emitting device fabricated in a nitride materials system and having an active region comprising two or more quantum well layers, each quantum well layer being separated from a neighbouring quantum well layer by a respective barrier layer;
- wherein the or each barrier layer has a thickness that is at least 13 times as great as the thickness of any one of the quantum well layers.
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Abstract
A semiconductor light-emitting device is fabricated in a nitride materials system and has an active region comprising two or more quantum well layers. Each quantum well layer is separated from a neighbouring quantum well layer by a respective barrier layer. The or each barrier layer has a thickness that is at least 13 times as great as the thickness of any one of the quantum well layers. This increases the output power of the device.
19 Citations
19 Claims
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1. A semiconductor light-emitting device fabricated in a nitride materials system and having an active region comprising two or more quantum well layers, each quantum well layer being separated from a neighbouring quantum well layer by a respective barrier layer;
wherein the or each barrier layer has a thickness that is at least 13 times as great as the thickness of any one of the quantum well layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of fabricating a semiconductor light-emitting device in a nitride materials system, the method comprising the steps of:
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a) growing a first quantum well layer;
b) growing a first barrier layer over the first quantum well layer; and
c) growing a second quantum well layer over the first barrier layer;
wherein the first barrier layer has a thickness that is at least 13 times as great as the thickness of any one of the quantum well layers. - View Dependent Claims (17, 18, 19)
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Specification