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Design and Fabrication of Micro Electromagnetic Actuator Array 張緯良、陳俊達

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Design and Fabrication of Micro Electromagnetic Actuator Array 張緯良、陳俊達

E-mail: [email protected]

ABSTRACT

This paper presents a novel technique for the fabrication of electromagnetic micro actuator. Make use of micro-coils of way manufacturing actuator. This technology combining Optical Lithography、Electron Beam Evaporator、Electroplating produce micro actuator. The structure of the actuating device uses the polymaterial (polyimide) to regard as the insulating barrier . Use technology electroplating the copper coil. After the coil enters the e current produce magnetic force. Attract or repel Magnet on the PDMS film. Producing can control displacement. Base on this technique to design and fabricate the array microcoils.Use this microcoils and PDMS as the vibrating diaphragm to produce waves displacement.It will probably used to transport micro-parts. In this study, three types of micro coils are presented as the micro actuator 150 μm line width with 150 μm spacing,125 μm line width with 150 μm spacing and 100 μm line width with 125 μm spacing, respectively. The proposed micro actuator has a maximum displacement of 36.6 μm.

Keywords : microactuator、microactuator、microcoil array、microelectroplating Table of Contents

第一章 緒論 1.1 前言………1 1.2 微機電系統之概述與發展………2 1.3 微型致動器發展之概述………2 1.4 文獻回顧………3 1.5 研究動機與目的

………6 第二章 微型致動器 2.1 研究目的………8 2.2 致動器微小化之優 點………8 2.3 微型致動器之類型………9 2.3.1 電熱式致動器………

…9 2.3.2 靜電式致動器………11 2.3.3 壓電式致動器………12 2.3.4 電磁式致動器………

………13 第三章 微型電磁式致動器製程技術 3.1 研究目的………16 3.2 電鍍技術………

………16 3.3 電鍍銅金屬………16 3.4 銅鍍液之種類………

…17 3.5 電鍍鈷鎳合金………18 3.6 電鍍控制條件………18 3.7 適用於電鍍的 光阻………20 3.8 電鍍基本配備………21 3.9 PDMS之特性概述………

…………23 3.10 製程步驟簡介………24 3.10.1 蒸鍍種子層………25 3.10.2 厚膜 光阻微影製程………26 3.10.3 電鍍線圈通道………30 3.10.4 定義線圈圖形………

……31 3.10.5 蒸鍍線圈………35 3.10.6 電鍍線圈………37 3.10.7 PDMS薄膜製 程………38 3.10.8 電鍍磁性薄膜………40 3.10.9 線圈與上層板結合………45 第 四章 結果與討論 4.1 微型電磁式致動器………47 4.1.1 磁場強度………47 4.1.2 磁場 梯度………55 4.1.3 位移量測………61 4.2 蠕動式致動器………

………67 4.2.1 陣列式線圈………67 4.2.2 驅動電路設計………69 4.2.3 蠕動式致動器…

………71 第五章 結論 5.1 結論………73 5.2 未來與展望………

………74 參考文獻………76 REFERENCES

[1]Riethmuller, W. and Benecke, W., “Thermally Excited Silicon Microactuators,” IEEE Transactions on Electron Devices, Vol. 35, pp. 758 -763, Jun. 1988.

[2]Guckel, H., Klein, J., Christenson, T., Skrobis, K., Laudon, M., and Lovell, E.G., “Thermo-Magnetic Metal Flexure Actuators,” Solid-State Sensor and Actuator Workshop, 5th Technical Digest, IEEE, pp. 73 –75. 1992.

[3]M. Khoo, C. Lin,“A Novel Micromachined Magnetic Membrane Microfluid Pump”, Proceedings of the 22nd Annual EMBS International Conference, July 23-23, pp. 2394-2397, 2000.

[4]Ki Hoon Kim, Hyeun Joong Yoon, Ok Chan Jeong, Sang Sik Yang,“Fabrication and test of a micro electromagnetic actuator,” Sensors and Actuators A , Vol. 117 , pp.8–16, 2005.

[5] Wei Li1, Jingqiu Liang1 , Xiaoqi Li ,Weibiao Wang, Yanchao Zhong , and Degui Sun , “Design and fabrication of a micro-optic switch“, OPTICS EXPRESS 6324 ,Vol. 16, 2008.

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[6]劉政志,電磁致動式微幫浦之最佳效能分析,國立成功大學,碩士論文,2002。

[7]方維倫、吳名清、楊學安,微機構的元件型式與運動特性,國立清華大學動力機械工程學系,微系統暨奈米科技協會會刊第九期

,2002。

[8]陳暉暄,新型變焦凹面型光柵,國立中央大學,碩士論文,2004。

[9]鄧伊浚,電鍍鎳鈷與鎳鐵合金組織與機械性質之研究,大葉大學,碩士論文,2003。

[10]編譯:蘇葵陽、校正:張良謙,實用電鍍理論與實際,複文書局,2003。

[11]Lee C.Y., Lee G.B., Micromachine-based humidity sensors with integrated temperature sensors for signal drift compensation, Journal of Micromechanics and Microengineering,626-631 ,2003.

[12]Hyoung J. Cho and Chong H. Ahn, “A Bidirectional Microactuator Using Electroplated Permanent Magnet Arrays,” IEEE 1057-7157/02, 2002.

[13]D. Armani, C. Liu and N. Aluru, “Re-Configurable Fluid Circuits by PDMS Elastomer Micromachining,” IEEE Micro Electro Mechanical Systems, pp. 222-227, 1999.

[14]Toray,Positive Tone Photosensitive Polyimide Coating, Toray Industries,10-15,2003.

[15]陳皓楨,微型感測器與致動器之設計與應用,大葉大學,碩士論文,2007。

[16]陳震徽,微型電磁式致動器與微幫浦之設計與製作,大葉大學,碩士論文,2008。

[18]章賢聰,用於無閥阻抗微幫浦之新型微電磁致動器之設計、製作與最佳化,大葉大學,博士論文,2007。

[19]張瑞斌,微電鍍技術及其在生物晶片之應用,國立成功大學,碩士論文,2002。

[20]楊啟榮,微機電製程之精密電鑄技術,國立台灣師範大學。

[21]黃偉銘,無閥式磁控微幫浦之設計、製作與分析,國立成功大學,2006。

參考文獻

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