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  • 學位論文

應用漫射光學檢測系統改善 LCD Cell 製程真偽缺陷偵測準確度

Improvement of True/False Defects Detection Using Diffuse Reflection Inspection System in the Cell Process of LCD

指導教授 : 鄭泗東

摘要


本研究的目的在於改善 LCD Cell 後段製程中,因環境中的粉塵掉落於面板上,造成 Cell Test AOI (Automatic optical inspection) 誤判為缺陷 (Defect) 而形成無謂的過殺 (Overkill),進而造成面板無謂的重工,平白浪費機台產能。 本研究捨棄傳統的人工清潔機台的方式,改以利用不同的光源照射於面板之上,面板內的真實缺陷與面板上的粉塵受到光源照射會有不同的波長漫射,再利用影像比對,將粉塵所造成的假缺陷比對出來並將其座標記錄至矩陣內,其餘檢測 Pattern 如遇 particle array 內所含之點位,則當成 false defect。經過實驗證明,此方式確實有效,加裝紅外光測光設備可有效降低 AOI 判片 overkill。

並列摘要


In this research, we will improve the overkill which is the particles in the environment fall on the panel , and make Cell test AOI judgment be not correct in the LCD Cell process .And the senseless overkill will make panel repair and waste machine manufacture. This research forsakes clean machine by operator with tradition , and use different source to light up the panel. When the true defect in Cell and the particles on the panel surface lit , it will be different diffuse reflection. And then ,we use image compare to part the false defect cause by particle , and record the coordinates to array. If there is the same coordinate in particle array we meet during the others pattern checking process , it will be false defect. According the experiment , it will work . The infrared rays equipments will decrease the AOI overkill efficaciously , and the yield increase 22% , it will cost down NTD 5,500,000 every year.

參考文獻


[1] 李柏蒼,TFT-LCD高階光學檢測設備國產化策略,國立清華大學碩士論文, 2008年。
[3] 曾彥馨,應用機器視覺於TFT面板之表面瑕疵檢測與分類,元智大學碩士論文,2003。
[5] 張頌榮,TFT-LCD 面板之點線瑕疵自動化檢測系統,p8-13,國立成功大學碩士論文,2005。
[7] C.J. Lu, D.M. Tsai, “Automatic defect inspection for LCDs using singular value decomposition”, International Journal of Advanced Manufacturing Technology Vol 25, 2005。
[8] 陳志忠,液晶顯示器的像素點缺陷與亮度均一性之自動化檢測,中原大學碩士論文,2001。

被引用紀錄


蕭毓則(2015)。晶圓級封裝晶粒檢測自動化研究 -以X公司最終檢驗站為研究對象〔碩士論文,國立中央大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0031-0412201512052828

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