研究生: |
陳俊臣 Chun-Chen Chen |
---|---|
論文名稱: |
線上拋光墊性能監測之彩色共軛焦系統取樣分析 Study on In-Process Sampling Analysis of Polishing Pad Performance Monitoring by Chromatic Confocal Measurement System |
指導教授: |
陳亮光
Liang-Kuang Chen 陳炤彰 Chao-Chang Chen |
口試委員: |
吳煌榮
Whang-Zong Wu 楊棋銘 Chi-Ming Yang 陳亮光 Liang-Kuang Chen 呂立鑫 Li-Hsin Lu 陳炤彰 Chao-Chang Chen |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 機械工程系 Department of Mechanical Engineering |
論文出版年: | 2018 |
畢業學年度: | 106 |
語文別: | 中文 |
論文頁數: | 164 |
中文關鍵詞: | 化學機械平坦化 、彩色共軛焦系統 、拋光墊性能 、取樣分析 、線上監測 |
外文關鍵詞: | Chemical mechanical polishing, Chromatic confocal system, Performance of polishing pad, Sampling analysis, In-Process monitoring |
相關次數: | 點閱:306 下載:3 |
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本研究主要為研發線上拋光墊監測系統,透過彩色共軛焦量測系統架設應用於旋轉式拋光機台,利用拋光盤面的旋轉運動以及搖臂的搖擺旋轉運動,搭配彩色共軛焦系統擷取高度資訊,進行線上監測之拋光墊表面形貌的掃描及重組。目前化學機械平坦化(Chemical Mechanical Planarization/Polishing, CMP)常用硬式發泡拋光墊表面突起(Asperity)尺度在微米(??)等級,拋光墊孔洞大小約在 20~50 微米左右,因此對於動態量測系統需有足夠的解析度,才足以還原拋光墊表面形貌,避免失真的現象。本研究之線上量測系統為一雙輸入單輸出系統,系統控制輸入分別為拋光機台之拋光盤面轉速、搖臂旋轉速度,並對搖臂來回運動掃描時馬達變向以及停頓時間進行回授校正, 系統輸出為拋光墊表面形貌。由於此系統為動態量測會受到許多干擾, 如水平誤差、機台旋轉產生的振動及濕式量測時空氣清除系統都會影響到量測結果。實驗結果顯示當取樣頻率為 1000 Hz、拋光盤轉速為 40 rpm 及計算樣本截斷值為 200 點時量測軌跡分佈準確度達 93.61%。 研究結果可進一步用於改進 IPPMS 整合到 CMP 機台。
This study is to develop an in-process pad monitoring system (IPPMS) with chromatic confocal measurement probe attached on a swing dressing arm in Chemical Mechanical Planarization/Polishing, CMP tool. The rotary motion of the polishing pad surface and the swing motion of dressing arm need to be combined to capture the pad height information measured by chromatic confocal system for in-process monitoring of the polishing pad. The pad asperities of most common hard and porous polishing pad have a pore size is about 20 to 50 microns. Thus the IPPMS needs to have sufficient resolution to restore the surface topography of pad to avoid distortion. The IPPMS system is a dual-input, single-output system from the point-of-view of control theory. The system control inputs are the rotation speed of polishing plate or pad surface and also the swing arm rotation speed of CMP tool, and the feedback correction of the motor in motion scanning. The system output is the surface topography of polishing pad. Some system disturbances for dynamic measurement include the horizontal position error and the periodic vibration, and the air purging system during the wet condition measurement can strongly affect the measurement results. Experimential results show that when the sampling frequency is 1000 Hz and the polishing pad rotation speed is 40 rpm, the distribution accuracy of measurement is 93.61%. Results of this study can be further used to improve the IPPMS for integration into CMP tool.
參考文獻
[1] H. Xiao, 羅正忠, and 張鼎張, "半導體製程技術導論," 台灣培生教育出版, 台北市, 2002.
[2] http://www.linx-consulting.com/CMP-technologies-7nm-node.html
[3] 王柏凱, "雷射共軛焦三維表面形貌量測儀開發應用於拋光墊之碎形維度和承載比分析," 國立台灣科技大學, 機械工程研究所碩士論文, 2013.
[4] 溫禪儒,"單晶矽與藍寶石晶圓化學機械平坦化之拋光墊有效壽命指標分析研究," 國立台灣科技大學, 機械工程研究所碩士論文, 2014.
[5] 陳鈺庭,"拋光墊修整磨合期對銅膜晶圓化學機械拋光影響研究,"國立台灣科技大學, 機械工程研究所碩士論文, 2012.
[6] J. McGrath and C. Davis, "Polishing pad surface characterisation in chemical mechanical planarisation," Journal of Materials Processing Technology, vol. 153-154, pp. 666-673, 2004.
[7] S. Del Monaco, F. Calderone, M. Fritah, T. L. Tiec, and A. Laurent, "Chemical Mechanical Planarization (CMP) In-Situ pad groove monitor through Fault Detection and Classification (FDC) system," in Planarization/CMP Technology (ICPT 2012), International Conference on, 2012, pp. 1-6.
[8] E.-S. Lee, J.-W. Cha, and S.-H. Kim, "Evaluation of the wafer polishing pad capacity and lifetime in the machining of reliable elevations," International Journal of Machine Tools and Manufacture, vol. 66, pp. 82-94, 2013.
[9] SENSOFAR CO. "Surface Metrology for In-Situ Pad Monitoring in Chemical Mechanical Planarization (CMP)." AZO MATERIALS, 2015.
[10] 蔡明城,"開發線上監控量測方法與系統應用於拋光墊性能水準分析之研究," 國立台灣科技大學, 機械工程研究所碩士論文, 2016.
[11] 傅彥綺,"拋光墊線上量測系統於修整性能分析與同化學機械拋光之相關性研究," 國立台灣科技大學, 機械工程研究所碩士論文, 2017.
[12] "ISO 25178-2:2012 Geometrical Product Specifications (GPS) – Surface texture: Areal, Part1: Terms, definitions and surface texture parameters. "
[13] "ISO 25178-602:2010 Geometrical Product Specifications (GPS) – Surface texture: Areal, Part602: Nominal characteristics of non-contact (confocal chromatic probe) instruments. "
[14] P. Ettl, B. E. Schmidt, M. Schenk, I. Laszlo, and G. Haeusler, "Roughness parameters and surface deformation measured by coherence rader," in International Conforence on Applied Optical Metrology, 1988, pp. 133-140.
[15] 張奕威,"多波長差動共焦顯微三維形貌量測技術之研究," 國立台北科技大學, 機電科技研究所博士論文, 2013.
[16] 陳奕璇,"彩色共焦干涉式顯微三維形貌量測方法與探頭之研發," 國立台北科技大學, 自動化科技研究所碩士論文, 2012.
[17] Y. Li, Microelectronic applications of chemical mechanical planarization: John Wiley & Sons, 2007.
[18] M. Stewart, "A New Approach to the Use of Bearing Area Curve", International Honing Technologies and Applications, 1990.
[19] L. B. X. Jiang, "Advanced Techniques for Assessment Surface Topography-Development of a Basis for 3D surface Texture standards", 2003.
[20] H. K. Sunghoon Lee, "Development of a CMP pad with controlled micro features for improved performance", IEEE, 2005.
[21] N. E. Huang, Z. Shen, S. R. Long, M. C. Wu, H. H. Shih, Q. Zheng, N.-C. Yen, C. C. Tung, H. H. Liu, "The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis", Proc. Royal Socity, vol. 454, pp.903-995, 1998.
[22] 徐曉剛、徐冠雷、王孝通、秦緒佳,"經驗模式分解(EMD)及其應用",中國電子學會電子學報,vol. 37, pp. 581-585, 2009.
[23] B. Huang and A. Kunoth, "An optimization base emprical mode decomposition scheme", Journal of Computational and Applied Mathematics, vol. 240, pp. 174-183, 2013.
[24] 王建榮, 林慶福 and 林必窕, "半導體平坦化CMP技術," 全華科技圖書股份有限公司, 台北市, 1999.
[25] 國立中央大學數據分析方法研究中心, “http://rcada.ncu.edu.tw/intro.html”
[26] H. Lee, Y. Zhuang, M. Sugiyama, Y. Seike, M. Takaoka, K. Miyachi, T. Nishiguchi, H. Kojima, A. Philipossian,"Pad flattening ratio, coefficient of friction and removal rate analysis during silicon dioxide chemical mechanical planarization", Thin Solid Film, vol.518, pp.1994-2000, 2010.
[27] 李德治, 林孟儒 and 童惠玲, "統計學," 博碩文化股份有限公司, 新北市, 2012.