Presentation 1995/6/16
Thermally controlled magnetization microrelay fabricated by nickel surface micromachining
Etsu Hashimoto, Yuji Uenishi, Akinori Watabe,
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Abstract(in English) Requirement of miniaturizing and integrating mechanical devices, such as relays, is increasing because of telecommunication society development. Micromachining has been studied as the technology for realizing on-chip micromechanical devices, microrelays, however, have not appeared because micromachining is not suitable for making a magnetic coil structure. We have proposed a coil free magnetic actuator : a thermally controlled magnetization actuator (TCMA) whose actuation is based on reducing the magnetization by local heating. The TCMA microrelay of 2mm^2 has been fabricated by a planar process technology with nickel surface micromachining. In this paper, we explain the principle, the fabrication method and the generated force of the microrelay. An integrated thin film heater could heat to reduce nickel's magnetization, and the microrelay was operated with 50Hz switching motion.
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Keyword(in English) microrelay / nickel plating / micromachining / thermally controlled magnetization actuator
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Committee EMD
Conference Date 1995/6/16(1days)
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Registration To Electromechanical Devices (EMD)
Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Thermally controlled magnetization microrelay fabricated by nickel surface micromachining
Sub Title (in English)
Keyword(1) microrelay
Keyword(2) nickel plating
Keyword(3) micromachining
Keyword(4) thermally controlled magnetization actuator
1st Author's Name Etsu Hashimoto
1st Author's Affiliation NTT Interdisciplinary Research Laboratories()
2nd Author's Name Yuji Uenishi
2nd Author's Affiliation NTT Interdisciplinary Research Laboratories
3rd Author's Name Akinori Watabe
3rd Author's Affiliation NTT Interdisciplinary Research Laboratories
Date 1995/6/16
Paper #
Volume (vol) vol.95
Number (no) 93
Page pp.pp.-
#Pages 6
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