Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/4213
標題: 白光LED封裝技術對光效之影響
Effects of Package Technology on Luminous Efficiencies of White Light-Emitting Diodes
作者: 郭朕豪
Kuo, Cheng-Hao
關鍵字: Luminous efficiency
發光效率
YAG
Silicate phosphor
YAG
矽酸鹽螢光粉
出版社: 精密工程學系所
引用: [1]H. J. Round, “A note on carborundum”, Electrical world, vol. 49, no. 6, pp. 309, 1907. [2]O. W. Losseve, Telegrafiai Telefonia, vol. 18, pp. 61, 1923. [3]S. Nakamura, T. Mukai, M. Senoh, N. Iwasa, “Thermal annealing effects on p-type Mg-doped GaN films”, Jpn. J. Appl. Phys., vol. 31, pp. L139-L142, 1992. [4]S. Nakamura, T. Mukai, M. Senoh, N. Iwasa, S. Nagahama, T. Yamada, “Superbright Green InGaN Single-Quantum-Well-Structure Light-Enmitting Diodes”, Jpn. J. Appl. Phys. vol. 34, pp. L1332-L1335, 1995. [5]Y. Jeff Tsao, “Solid-state Lighting Lamps, Chips, and Materials for Tomorrow”, IEEE Circuit & Devices Magazine, vol. 20, issue 3, pp. 28~37, 2004. [6]D. Ibrahim and M. Beasley, ”The Benefits of LED Traffic Lights in London and the Pilot Test Sites”, IEE, Conference Publication no. 454, pp. 172-176, 1998. [7]http:// ww.cnledw.com/knowledge/detail-11120.htm。 [8]http://www.ledinside.cn/node/4161。 [9]http://www.eettaiwan.com/ART_8800376277_480702_NP_8eb29dd4.HTM。 [10]C. C. Lee and J. Park, “An Electrical Model With Junction Temperature for Light-Emitting Diodes and the Impact on Conversion Efficiency”, IEEE Electron Device Letters, vol. 26, no. 5, pp. 308~310, 2005. [11]N. Narendran and Y. Gu, “Life of LED-Based White Light Sources”, IEEE/OSA Journal of Display Technology, vol. 1, no. 1, pp. 167~171, 2005. [12]E. Hong and N. Narendran, “A Method for Projecting Useful Life of LED Lighting Systems”, Third International Conference on Solid State Lighting, Proceedings of SPIE, vol. 5187, pp. 93~99, 2004. [13]中國照明2008年12月刊號,vol. 55,pp. 54~56。 [14]邦達203A操作指引手冊,ITM艾逖恩控股有限公司,2005。 [15]iHawk 操作手冊,ASM太平洋科技有限公司,2008。 [16]SPR-920光源光電色綜合測試系統操作說明書,杭州浙大三色儀器有限公司,2005。 [17]許嘉紋、黃淑禎、陳凱琪,工業材料雜誌262期,2008。 [18]謝宗琳、汪吉祥、呂政璋、黃首勳,”白光發光二極體設計製造”,中華技術學院期刊,Vol. 28,2003。 [19]羅文雄、蔡榮輝、鄭岫盈,” 半導體製造技術”,2003。 [20]道康寧網 www.dowcorning.com.cn。 [21]陳登銘,”照明應用急速擴張,白光LED螢光粉技術三強鼎立 ”,新電子科技雜誌,Vol. 269,2008。 [22]http://www.eettaiwan.com/ART_8800577404_480702_NP_d858f8d5 .HTM。 [23]http://61.61.247.23/DocPrint.aspx?id=7843。 [24]http://www.ledinside.com.tw/sharp_HUW_LED_GW5BWC15L00_2 00706。
摘要: 本篇論文主要是以改善白光發光二極體(LED)發光效率為主,並依封裝基本原理,針對45 mil × 45 mil 氮化銦鎵/氮化鎵(InGaN/GaN)製程的藍光LED晶片採用2串2並的多晶結構方式進行LED光源封裝,並逐一透過從封裝基板結構、矽膠層結構、螢光粉與膠量配比和散熱膏等步驟一一改善製程,以求提升整顆白光LED燈之光效研究。 透過研究將證明以釔鋁石榴石螢光粉(YAG)混白光LED的發光效率可達100 lm/W,同時為規避日亞專利並以矽酸鹽螢光粉混白光LED來提升發光效率為本論文之研究重點。經研究結果我們發現最佳之封裝基板厚度為鋁/銅/銀為1.56 mm/40 μm/15 μm,當藍光晶片波長介在463.6~470.9 nm之間,以折射係數為1.54、黏性為1.8 Pa.s的矽膠為保護層,折射係數為1.54、黏性為4 Pa.s的矽膠為混螢光粉之膠層結構,且以矽酸鹽螢光晶體:6550矽膠為1:19 可以封裝成6400K白光LED;以矽酸鹽螢光晶體:6550矽膠:硫化物為0.095:1:0.0072 可封裝成3500K暖白光LED。經研究最佳化後,以混矽酸鹽螢光粉進行封裝則光效可從38 lm/W提升至66 lm/W;以混YAG螢光粉進行封裝光效可提升到80 lm/W。
This thesis was focused on the efficiency improvement of light-emitting diodes (LEDs) by package 2 × 2 InGaN/GaN LEDs chips with 45 × 45 mil2. The package technology consisting of heat sink structures, silica gel layer, ratio of phosphor/gel and thermal pastes was used to improve luminous efficiency (lm/W) of LEDs. Based on the luminous efficiency of 100 lm/W was be obtained by using Yttrium-Aluminum Garnet phosphor (YAG) of white LEDs. Considering the Circumvention Nichia patents, the thesis was focused on improves luminous efficiency of white LEDs with silicate phosphor. Based on the results of the study, the optimized heat sink thickness of Al/Cu/Ag was 1.56 mm/40 μm/15 μm. The phosphor layer of LEDs (with 45 mil × 45 mil dimensions) was assembled by 2 different silica gel materials. The stickiness and refractive index of the first silica gel layer was 1.8 Pa.s and 1.54, respectively. The second silica gel layer stickiness and refractive index combined with phosphor was 4 Pa.s and 1.54, respectively. The ratio of silicate phosphor/gel was 1/19 for cool white LEDs (6400 K) and the ratio of silicate phosphor/gel/sulfide phosphor was 0.095/1/0.0072 for warm white LEDs (3500 K). The luminous efficiency of cool white LEDs was improved from 38 lm/W to 66 lm/W through the optimum ratio of silicate phosphor. The luminous efficiency of white LEDs with YAG phosphor was 80 lm/W.
URI: http://hdl.handle.net/11455/4213
其他識別: U0005-1208200914321200
文章連結: http://www.airitilibrary.com/Publication/alDetailedMesh1?DocID=U0005-1208200914321200
Appears in Collections:精密工程研究所

文件中的檔案:

取得全文請前往華藝線上圖書館

Show full item record
 
TAIR Related Article
 
Citations:


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.