Degradation characteristics of blue GaN-LED chip related to packages

Jeung Mo Kang, Jae Wook Kim, Jeong Hyeon Choi, Du Hyun Kim, Pyung Sik Oh, Sang Kook Han, Ho Ki Kwon

Research output: Contribution to journalConference articlepeer-review

9 Citations (Scopus)


This paper reports the degradation characteristics of blue GaN-LED (Gallium Nitride-light emitting diode) chip related to various packages. Three types of package have been considered to investigate degradation characteristics in this study. One package is our proposed new concept of metal package by which we can estimate the lifetime of blue LED chip (chip size: 1mm x 1mm) with high accuracy. In the proposed package, components in conventional LED package which may obscure the degradation behaviour of LED chip itself were removed or replaced by other materials or components. And as a control group, two types of commercial packages were used (3W package and low power package). We investigated and analyzed the light-output degradation and changing of package materials of high-power blue LED chip packaged with these three types of package to aging time of 5,000 hours. (Figure Presented)

Original languageEnglish
Pages (from-to)2205-2207
Number of pages3
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Issue number7-8
Publication statusPublished - 2010
Event8th International Conference on Nitride Semiconductors, ICNS-8 - Jeju, Korea, Republic of
Duration: 2009 Oct 182009 Oct 23

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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