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研究生: 陳宏吉
Hung-Chi Chen
論文名稱: 應用X射線薄層描繪法於PCB與BGA檢測之研究
The Study of Using X-Ray Laminography on PCB and BGA Inspection
指導教授: 林士傑
Shin-Chieh Lin
口試委員:
學位類別: 碩士
Master
系所名稱: 工學院 - 動力機械工程學系
Department of Power Mechanical Engineering
論文出版年: 2007
畢業學年度: 95
語文別: 中文
論文頁數: 90
中文關鍵詞: X射線薄層描繪法PCB檢測BGA檢測
外文關鍵詞: X-ray Laminography, PCB inspection, BGA inspection
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  • 對高度競爭的電子產業而言,製程後續的檢測過程不僅可以提高產品的良率,更能減少在不良品上加工的浪費。目前廣泛採用的二維自動光學檢測(Automatic Optical Inspection)設備,在無鉛製程以及高密度化的發展趨勢下,已經不敷使用,因此能夠進行三維結構重建的影像處理方法逐漸嶄露頭角。本研究模擬採用X射線電腦薄層描繪法(X-Ray Laminography)來進行檢測,主要看重該方法的運算速度較能符合電子產品快速檢測的需求。本研究將針對X射線電腦薄層描繪法重建影像的參數進行探討,其中包含運動型態、疊加張數和投影傾斜角度,以藉此加強重建品質,並且應用在多層印刷電路板和BGA錫球的內部結構重建上,期望能快速且精準的檢測出是否含有內部瑕疵或缺陷。


    As to high-competitive electronic industry, the inspection of follow-up process not only enhances production yield but also reduces the waste of manufacture at failure. At present, traditional two-dimension automatic optical inspection machine is already useless under the tendencies of Pb-free manufacturing process and higher component density. Therefore image processing that can rebuild the three-dimensional structure show up prominently gradually.
    This research simulation adopts the X-ray Laminography to measure, value the demand that the high-speed operation of this method can relatively accord with the inspection of the electronic product mainly. The object is to study effects of some system parameters on the reconstruction quality. The system parameters studied include the kinematical type of the system, number of synthesized image and the projection angle. It expects that the measuring of the sample is able to be found the inside flaw or the defect is existing or not.

    摘要 Abstract 誌謝 目錄 圖目錄 表目錄 第一章 緒論 1-1 研究背景 1-2 研究動機與目的 第二章 文獻回顧 2-1 X射線的特性 2-2 X射線電腦斷層掃描 2-3 Laminography的基本原理和分類 第三章 研究方法與步驟 3-1 投影過程 3-2 定位方法與重建過程 3-3 實驗參數設定 3-4 測試模型之建立與分析指標 第四章 實驗結果和討論 4-1 PCB模型重建結果 4-2 BGA模型重建結果 4-3 實際電路板重建結果 第五章 結論與未來展望 5-1 結論 5-2 未來展望 參考文獻

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