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姓名 李佳真(Chia-Chen Lee)  查詢紙本館藏   畢業系所 光電科學與工程學系
論文名稱 直流磁控濺鍍氧化膜界面應力之研究
(Interface stress of oxidized films by DC magnetron sputtering deposition)
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摘要(中) 近年來,軟性電子技術的發展為電子產業帶來重大的革命,尤其以軟性顯示器的發展最為迅速,其中軟性基板取代傳統玻璃基板使得消費型電子產品具備輕、薄、短、小的特色而更加便利人們的生活,但是使用軟性基板所衍生而來的應力問題更是極待去解決的一環。
本文以直流磁控濺鍍製鍍SiO2與Nb2O5單層膜以及多層膜堆疊在玻璃基板、PET及PC基板上。由硬性基板(玻璃)的薄膜應力理論出發,發展軟性基板的薄膜應力理論,輔以應力實驗量測來尋找最佳的製程參數使單層SiO2與Nb2O5薄膜之光學性質與應力能同時兼顧,此外也加以去探討SiO2/Nb2O5多層膜疊加後的應力變化與膜層間界面應力的關係,最後發展一套理論詮釋多層膜應力行為 。
SiO2單層膜實驗最佳製程參數為電壓480 volt,氧氣通量11.1 sccm,相對應應力值為玻璃 -0.37 GPa;PET -0.22 GPa;PC -0.45 GPa。Nb2O5實驗最佳製程參數為功率0.6 kw 氧氣通量為15.3 sccm,相對應應力值為玻璃-0.12 GPa;PET -0.09 GPa;PC -0.18 GPa。在多層膜堆疊實驗發現在不同的基板有相同的趨勢,在SiO2/Nb2O5/sub的情況下界面應力會較Nb2O5/SiO2/sub小甚至有張應力的產生。
摘要(英) There has been much focus on flexible display technology, and people life become more convenient because of the flexible electronic technology develops fast recently. The flexible substrate substitution tradition glass substrate causes the expense electronic products to have lightweight, thin, the small characteristic but uses the flexible substrate to grow comes the stress question which is treats extremely solves.
The films of SiO2 and Nb2O5 have been deposited on the glass substrate and flexible substrate by DC magnetron sputtering. We develop residual stress theory of flexible substrate based on that of rigid substrate. In addition, we adjust the best parameters for optical constant and residual stress of SiO2 and Nb2O5 film on the glass substrate and flexible substrate. Finally, a simple model for interface stress of SiO2/Nb2O5 multilayer has been proposed.
The best parameter of SiO2 is voltage of 480 volt, oxygen flux of 11.1 sccm, and residual stress of -0.37 GPa, -0.22 GPa, -0.45 GPa on the glass, PET, PC substrate, respectively. The best parameter of Nb2O5 is power of 0.6 kw, oxygen flux of 15.3 sccm, and residual stress of -0.12 GPa, -0.09 GPa, -0.18 GPa on the glass, PET, PC substrate, respectively. There is the same trend of the result of multilayer that the smaller interface stress when SiO2/Nb2O5/sub multilayer.
關鍵字(中) ★ 磁控濺鍍
★ 軟性基板
★ 界面應力
★ 軟性電子
關鍵字(英) ★ magnetron sputtering
★ flexible substrate
★ flexible electronic
★ interface stress
論文目次 摘要........................................................................................................................ i
Abstract .................................................................................................................ii
致謝......................................................................................................................iii
目錄...................................................................................................................... iv
圖目錄.................................................................................................................vii
表目錄................................................................................................................... x
第一章 緒論.................................................................................................. 1
1-1 前言........................................................................................................ 1
1-2 研究動機................................................................................................ 3
1-3 文獻回顧................................................................................................ 4
1-4 論文結構................................................................................................ 6
第二章 基本理論.......................................................................................... 8
2-1 前言........................................................................................................ 8
2-2 薄膜應力與界面應力定義................................................................... 8
2-3 硬性基板的薄膜應力......................................................................... 10
2-4 軟性基板的薄膜應力......................................................................... 13
2-5 界面應力.............................................................................................. 14
2-6 薄膜應力量測技術............................................................................. 16
第三章 實驗設備以及方法........................................................................ 18
3-1 磁控濺鍍(magnetron sputter deposition)機制[25]........................ 18
3-2 實驗設備.............................................................................................. 18
3-3 分析工具.............................................................................................. 20
3-3-1 可見光-近紅外光光譜儀[5] .................................................... 20
3-3-2 光學參數fitting 程式- 包絡法............................................... 20
3-3-3 相位偏移干涉儀...................................................................... 22
3-3-4 陰影疊紋架構(Shadow Moiré Method) .................................. 24
3-4 基板簡介.............................................................................................. 27
3-4-1 玻璃基板.................................................................................. 27
3-4-2 塑膠基板.................................................................................. 28
3-5 實驗目標及流程................................................................................. 31
第四章 實驗結果與討論............................................................................ 32
4-1 SiO2 單層膜.......................................................................................... 32
4-1-1 固定電壓450 volt.................................................................... 32
4-1-1-1 玻璃基板上的穿透率光譜及折射率表現.................. 33
4-1-1-2 不同通氧量對鍍率的影響........................................... 35
4-1-2 固定電壓480 volt.................................................................... 36
4-1-2-1 玻璃基板上的穿透率光譜及折射率表現.................. 36
4-1-2-2 不同通氧量對鍍率的影響........................................... 37
4-1-3 固定電壓500 volt.................................................................... 38
4-1-3-1 在玻璃基板上的穿透率光譜及折射率表現.............. 38
4-1-3-2 不同通氧量對鍍率的影響......................................... 40
4-1-4 固定電壓450,480,500 之比較................................................ 41
4-1-4-1 在玻璃基板上的穿透率光譜及折射率表現.............. 41
4-1-4-2 在PET及PC基板上的穿透率光譜............................. 42
4-1-4-3 Glass、PET及PC基板之薄膜應力分析.................... 43
4-2 Nb2O5 單層膜........................................................................................ 44
4-2-1 Nb靶材的遲滯效應.................................................................. 44
4-2-2 在玻璃上之穿透率光譜及光學常數...................................... 46
4-2-3 在PET上之穿透率光譜及光學常數....................................... 48
4-2-4 在PC(hard coat)上之穿透率光譜及光學常數.................. 50
4-2-5 Glass、PET及PC基板之薄膜應力分析............................... 52
4-3 多層氧化膜.......................................................................................... 53
4-3-1 玻璃基板.................................................................................. 53
4-3-2 軟性基板.................................................................................. 58
第五章 結論與未來展望............................................................................ 63
Conclusion........................................................................................................... 65
參考文獻............................................................................................................. 66
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[24] SCHOTT公司所提供之產品資料。
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指導教授 李正中(Cheng-Chung Lee) 審核日期 2009-7-22
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