中大機構典藏-NCU Institutional Repository-提供博碩士論文、考古題、期刊論文、研究計畫等下載:Item 987654321/46991
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 78936/78937 (100%)
造访人次 : 39792753      在线人数 : 645
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/46991


    题名: 高效能LED關鍵光熱模組元件技術之研究---子計畫三:高適應性檢測LED封裝熱特性技術開發(I);Highly Adaptive LED Packaging Themal Properties Measurement Technology Developement(I)
    作者: 鍾德元
    贡献者: 光電科學與工程學系
    关键词: 高功率近紅外雷射;LED;封裝基板;熱阻;High power near infrared laser;LED;package subtract;thermal resistance;能源工程;光電工程
    日期: 2010-01-01
    上传时间: 2011-07-13 16:23:04 (UTC+8)
    出版者: 行政院國家科學委員會
    摘要: 本計劃以高功率近紅外雷射作為熱源,照射於高功率LED封裝基板上以模擬高功率LED產生之廢熱,由於雷射光源之高度彈性,可以以不同之功率以及光形分佈之高度適應性以模擬各種熱源分佈;而後藉由紅外線熱像儀觀察LED封裝基板之溫度分佈以求得封裝基板之熱阻,並以有限元素分析法同時進行數值模擬以估計封裝基板內部之介面熱阻;第一年將著重於單一LED晶片封裝熱特性研究、建立穩態熱阻量測流程、樣品表面塗層開發與量測環境造成誤差之研究。第二年將著重於以光學系統模擬多LED晶片封裝基板之熱阻量測、脈衝模式操作LED模擬、並對脈衝加熱熱阻量測或近似穩態加熱熱阻量測進行理論與實驗之研究。 This project purposes utilizing high power near-infrared laser as the heating source illuminating on high power LED package subtracts to simulate the waste heat generation of high power LED experimentally. By means of the highly flexibility of laser light, different laser power and beam profile distribution make possible adaptively simulate heat source distribution in various cases. Thermal images of the illuminated subtract can be taken and its thermal resistance can then be calculated correspondingly. At the meantime, model of the subtract will be analyzed by finite element analysis to estimate the interface thermal resistance inside the subtract. The work of the first year will be focused on single LED chip package subtract thermal resistance measurement, standardized the measurement procedure, subtract surface treatment development and error analysis due to environmental condition. In the second year, we will devote to development the optical system for simulate multiple LED chip package and measure its thermal resistance as well as pulsed operate LED simulation and study the possibility of pulsed heating thermal resistance measurement and quasi-steady heating thermal resistance measurement. 研究期間:9901 ~ 9912
    關聯: 財團法人國家實驗研究院科技政策研究與資訊中心
    显示于类别:[光電科學研究中心] 研究計畫

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbHTML522检视/开启


    在NCUIR中所有的数据项都受到原著作权保护.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 隱私權政策聲明