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Fabrication of 3D solenoid microcoils in silica glass by femtosecond laser wet etch and microsolidics

  • Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

This paper reports a flexible fabrication method for 3D solenoid microcoils in silica glass. The method consists of femtosecond laser wet etching (FLWE) and microsolidics process. The 3D microchannel with high aspect ratio is fabricated by an improved FLWE method. In the microsolidics process, an alloy was chosen as the conductive metal. The microwires are achieved by injecting liquid alloy into the microchannel, and allowing the alloy to cool and solidify. The alloy microwires with high melting point can overcome the limitation of working temperature and improve the electrical property. The geometry, the height and diameter of microcoils were flexibly fabricated by the pre-designed laser writing path, the laser power and etching time. The 3D microcoils can provide uniform magnetic field and be widely integrated in many magnetic microsystems..

Original languageEnglish
Title of host publicationInternational Conference on Photonics and Optical Engineering, icPOE 2014
EditorsWeiguo Liu, Anand Asundi, Chunmin Zhang, Ailing Tian
PublisherSPIE
ISBN (Electronic)9781628415650
DOIs
StatePublished - 2015
EventInternational Conference on Photonics and Optical Engineering, icPOE 2014 - Xi'an, China
Duration: 13 Oct 201415 Oct 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9449
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceInternational Conference on Photonics and Optical Engineering, icPOE 2014
Country/TerritoryChina
CityXi'an
Period13/10/1415/10/14

Keywords

  • 3D solenoid microcoils
  • femtosecond laser
  • micro-nano manufacturing
  • silica glass
  • wet etching

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