Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ki Bum Nam0
Chung Hoon Lee0
Dae Sung Kal0
Dae Won Kim0
Date of Patent
February 23, 2010
0Patent Application Number
125417490
Date Filed
August 14, 2009
0Patent Primary Examiner
Patent abstract
A light emitting device can be used for light emitting diodes and laser diodes. The light emitting device includes a substrate, a first semiconductor layer on the substrate, a second semiconductor layer on the first semiconductor layer, and a multi-quantum well structure including at least one well layer and at least one barrier layer between the first and second semiconductor layers. A carrier trap portion is formed in at least one layer within the multi-quantum well structure. The carrier trap portion has a band-gap energy that gradually decreases from a periphery of the carrier trap portion to a center thereof.
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