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DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 林致廷(Chih-Ting Lin) | |
dc.contributor.author | Shih-Chao Hsu | en |
dc.contributor.author | 徐士超 | zh_TW |
dc.date.accessioned | 2021-06-08T07:07:27Z | - |
dc.date.copyright | 2008-09-02 | |
dc.date.issued | 2008 | |
dc.date.submitted | 2008-08-12 | |
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Parylene specification and properties by speedline technology, (http://www.ncf.uic.edu/manuals/coatspec.pdf) | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/26357 | - |
dc.description.abstract | 在醫學的檢測上開始以分子標誌診斷方式判斷,治療方式也開始對引發疾病的分子做特定的治療,相當需要具有高效率且可以快速檢測分子的工具,而現今的技術平台提供了一個可信賴、快速、低成本、及多通道檢測生物標誌的診斷方式,可以早點發現疾病,對於癌症早期發現所做治療的成功率,一般將會最高。
因為微影技術的進步,元件尺度縮小至奈米等級,過去已有人提出用奈米線來製作生物分子的感測器如蛋白質、DNA、離子...等等的感測。過去的研究當中,用來作為生物分子感測器的奈米線,不是採用化學氣相沉積法(chemical vapor deposition,CVD)就是使用單晶矽-氧化矽-單晶矽晶圓(silicon on insulator,SOI)的方式達成,前者因為在製作上電極的安排會遭受到製程上的困難,而後者則是成本較一般標準半導體製程來得高出許多。 因此在論文中我們提出了一個新的方式解決上述的問題。我們選擇製作一個多晶矽奈米場效應電晶體來感測pH值,在論文的第一部分我們首先製做使用下閘極結構(bottom gate)的電晶體(Field Effect Transistor,FET),在量測pH值時,將元件蓋上光阻,使用曝光機將通道露出 (biochemical sensor),此結構不僅沒有電極安排上的困難,且可以現今的半導體製程實現,未來希望可以感測生物分子。 | zh_TW |
dc.description.abstract | Medicine progresses toward Diagnostics based on molecular marker, and highly specific therapies aimed at molecular targets, the necessity for high-throughput methods for the detection of biomolecule increases. Technology platform that provide diagnostics which is reliable, rapid, quantitative, low-cost and muti-channel identification of biomarkers. Disease could be found early. Early detection of cancer are treated with the greatest possibility of success.
Due to lithography technology’s progressing, device’s dimension has decreased to nanometer. Recently nanowire has been proposed to detect proteins, DNA, ions…etc. Nanowire used to function as biosensor had been showed, which was made either by CVD(chemical vapor deposition) or by using SOI(silicon on insulator). The former has trouble in electrode arranging, and the latter is suffer from higher cost than standard semiconductor process. In thesis, we announced a new way to solve the problems. We fabricate polysilicon nanowire field effect transistor to sense pH value. In the first part of thesis, we made FET with bottom gate. And When measuring pH value, device layer is cover by photoresist. Channel is open by aligner. The structure not only doesn't have problem in arranging electrode but also could be made by standard semiconductor process. In the future, it will be used to detect biomolecules | en |
dc.description.provenance | Made available in DSpace on 2021-06-08T07:07:27Z (GMT). No. of bitstreams: 1 ntu-97-R95943142-1.pdf: 4312560 bytes, checksum: 240ef141f8f22b57a444d37d7cb8e274 (MD5) Previous issue date: 2008 | en |
dc.description.tableofcontents | 中文摘要.................................................................................................i
英文摘要.................................................................................................ii 目錄..........................................................................................................iv 圖目錄.....................................................................................................vi 表目錄....................................................................................................viii 第一章 序論........................................................................................1 1.1 序言……............................................................................................1 1.2 研究動機...........................................................................................4 參考文獻………………………………………………………………….………..………………....7 第二章 文獻回顧及原理介紹......................................................10 2.1 多晶矽載子傳輸原理………………....................................................10 2.2 多晶矽非理想效應……………………...................................................15 2.2.1 漏電流......................................................................................15 2.2.2 扭曲效應..................................................................................16 2.3 矽奈米線場效應電晶體的應用……………………………………….….…….18 2.3.1 Silicon-based nanoelectronic field-effect pH sensor with local gate control..............................................................................18 2.4 結論......................................................................................................23 參考文獻..................................................................................................24 第三章 實驗過程…………………………………………………………………...…...26 3.1 簡介................................................................................................26 3.2 製程………….....................................................................................27 3.2.1 電子束微影.............................................................................27 3.2.2 非等向性蝕刻.........................................................................29 3.2.3 離子佈質.................................................................................32 3.2.4 下閘極製作………………………………………………………………………….34 3.3 量測架構與方法.............................................................................37 參考文獻………………………………………..…………………………………………………..39 第四章 實驗結果……………………………………………………………………………40 4.1 簡介................................................................................................40 4.2 電性量測結果................................................................................42 4.2.1 Vgs-Id曲線 ............................................................................42 4.2.2 Vds-Id 曲線.............................................................................43 4.2.3 Degredation………………………………………….……………………………..44 4.2.4 passivation……………………………………………………………………………45 4.2.5 pH 值量測…………………………………………………………………………..47 4.2.5.1 Vds-Id 曲線& Vgs-Id 曲線………………………………………….47 4.2.5.2 degradation…..................................................................49 4.3 電子束顯微鏡圖............................................................................50 4.3.1 元件示意圖.............................................................................50 4.3.2 原子力顯微鏡量測結果.........................................................52 4.4 結論................................................................................................56 參考文獻……………..…..…………………………………………………………………………57 第五章 結論………………...................................................................59 5.1 實驗結果討論................................................................................59 5.2 未來展望........................................................................................60 附錄………………........................................................................................61 製程說明…………………………………………………………………………………………...61 表一………………………………………………………………………..…………………………..69 表二………………………………………………………………..…………………………………..71 圖2.1多晶矽能帶圖[1]………….………………………………….……….……………….11 圖2.2.1 漏電流的載子傳輸方式[4].......................................................17 圖2.2.2 扭曲現象圖...............................................................................17 圖2.3.1.1奈米線場效應電晶體圖[8]………………………………………………….19 圖2.3.1.2實體元件圖[8]……………………………………………………………………..20 圖2.3.1.3 Id對pH值量測圖[8]…………………………………….……………………..21 圖2.3.1.4側邊閘極SEM圖[8]………………………………...………………………….21 圖2.3.1.5閘極電壓與靈敏度關係圖[8]……...…………….….…….................22 圖2.3.1.6元件示意圖[8]……………………………………………………………………..22 圖3.2.1.1 man-2403光阻特性圖………………………………………………….……..27 圖3.2.1.2 man光阻轉速圖………………………………………………………………….28 圖3.2.1.3光阻轉速及其相對厚度圖………………………………………………….28 圖3.2.1.4多晶矽場效應電晶體通道SEM圖……………………….................29 圖3.2.2.1蝕刻不均勻圖……………………………………………………………………..30 圖3.2.2.2蝕刻均勻圖………………………………………………………………………….30 圖3.2.2.3源極蝕刻厚度圖……………………...…………………….......................31 圖3.2.2.4通道蝕刻厚度圖…...…………………...………………………………………31 圖3.2.3.1摻雜遮罩圖…......……...…………………………………………………………33 圖3.2.3.2快速熱退火溫度對時間圖………………………………………………….33 圖3.2.4.1下閘極示意圖……………………………………………………………………..34 圖3.2.4.2閘極孔洞深度圖………………………………………………………………….35 圖3.2.4.3孔洞圖………………………………………………………………………………...35 圖3.2.4.4金屬熱退火-溫度對時間圖…………………………………………………36 圖3.3.1 Vds-Ids量測圖………………………………………………………………………..37 圖3.3.2 pH值量測圖…………………………………………………………………………..37 圖3.3.3流道圖……………………………………………………………………..…………….38 圖3.3.4 pH測試實體圖……………………………………………………………………….38 圖4.2.1 Vgs-Ids圖………………………………………………………….…………………....42 圖4.2.2 Vds-Ids圖…………………………………………………….………………………...43 圖4.2.3.1第一次量測Vds-Ids圖………………………………………………………...44 圖4.2.3.2第二次量測Vds-Ids圖………………………………….………………………44 圖4.2.4.1有保護層第一次量測 Vds-Ids圖……………………………………..…45 圖4.2.4.2有保護層第二次量測 Vds-Ids圖………………………………………..45 圖4.2.5.1.1 不同pH值Vds-Ids圖………………………………………….……………47 圖4.2.5.1.2 不同pH值Vgs-Ids圖……………………………………..……………….48 圖4.2.5.2.1 第一次量測pH值Vds-Ids圖……………………...……………………49 圖4.2.5.2.2 第二次量測pH值Vds-Ids圖……………………..……….……………49 圖4.3.1.1 金屬電極SEM圖……..……………………………………..………………….50 圖4.3.1.2 金屬電極圖……………………………………………….……………………….51 圖4.3.1.3 元件SEM圖…………………………………………………………….………...51 圖4.3.2.1 Pt 2.5nm 晶粒SEM圖…………………………………………………………52 圖4.3.2.2 Pt 7.5nm 晶粒SEM圖…………………………………………………………53 圖4.3.2.3 Pt 7.5nm 晶粒SEM圖…………………………………………..……………53 圖4.3.2.4 以硼摻雜的晶粒SEM圖………………………………………….………...54 圖4.3.2.5 以磷摻雜的晶粒SEM圖…………………………………………..………..54 圖4.3.2.6 無摻雜的晶粒SEM圖…………………………….………………………...55 圖3.2.1-3.2.21製程說明……………………………………………………………………..61 表一 硼原子摻雜深度與能量關係表....................................................69 表二 磷元子摻雜深度與能量關係表....................................................71 | |
dc.language.iso | zh-TW | |
dc.title | 多晶矽奈米場效應電晶體 | zh_TW |
dc.title | polysilicon nanometer Field Effect Transistor | en |
dc.type | Thesis | |
dc.date.schoolyear | 96-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 施文彬,楊燿州,郭宇軒 | |
dc.subject.keyword | 多晶矽,感測器, | zh_TW |
dc.subject.keyword | polysilicon,sensor, | en |
dc.relation.page | 72 | |
dc.rights.note | 未授權 | |
dc.date.accepted | 2008-08-12 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電子工程學研究所 | zh_TW |
顯示於系所單位: | 電子工程學研究所 |
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