Integrated electromagnetic microactuators with a large driving force

C. T. Pan, H. Yang, M. C. Chou, S. C. Shen

研究成果: Article同行評審

7 引文 斯高帕斯(Scopus)


This paper describes a high power electromagnetic microactuator fabrication method that combines the hard magnetic Fe/Pt process, Ni/Fe permalloy magnetic circuit design, bulk micromachining, and excimer laser ablation. The hard magnetic material Fe/Pt is deposited under low temperature less than 350°C by sputter onto a suspension diaphragm to produce a perpendicular magnetic anisotropic field. The magnetic circuit with closed loop design is applied to concentrate the magnetic flux and increase the magnetic force. The magnetic field induced by the planar coil and Ni/Fe permalloy enhances the interaction with Fe/Pt to induce attractive and repulsive displacement, provide large output force, and operate at high frequency. This high power electromagnetic microactuator is demonstrated with minimum dimensions with a magnetic force two times greater than conventional magnetic micro-actuators.

頁(從 - 到)173-179
期刊Microsystem Technologies
發行號1-2 SPEC. ISS.
出版狀態Published - 2005 十二月 1

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 硬體和架構
  • 電氣與電子工程


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