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Spray coating fabrication: Thin film formation on non-planar surface

  • M. Ichiki
  • , L. Zhang
  • , Z. Yang
  • , T. Ikehara
  • , R. Maeda
  • National Institute of Advanced Industrial Science and Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

6 Scopus citations

Abstract

This paper presents a three-dimensional microfabrication and integration technology for MEMS smart materials that utilizes a spray coating method. Spray coating is shown to be most effective for additional deposition on non-planar surfaces. PZT films were formed both on flat and uneven surfaces at a thickness of about 1μm. Perovskite structures were formed with suitable heat treatment and ferroelectric P-E hysteresis loop was also obtained. This paper is the first report from our group and other researchers on the deposition of smart materials for MEMS using a spray coating method. Spray coating has been proposed as an effective three-dimensional coating method which can be used to deposit piezoelectrics, pyroelectrics, magnetics, etc. for sensors and actuators. The hydrophilic and hydrophobic properties between the substrate surface and ejected liquid are most essential process factors in the spray coating method for improving the film growth conditions.

Original languageEnglish
Title of host publicationTRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages825-828
Number of pages4
ISBN (Electronic)0780377311, 9780780377318
DOIs
StatePublished - 2003
Externally publishedYes
Event12th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2003 - Digest of Technical Papers - Boston, United States
Duration: 8 Jun 2003 → 12 Jun 2003

Publication series

NameTRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers
Volume1

Conference

Conference12th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2003 - Digest of Technical Papers
Country/TerritoryUnited States
CityBoston
Period8/06/03 → 12/06/03

Keywords

  • Coatings
  • Fabrication
  • Ferroelectric films
  • Ferroelectric materials
  • Heat treatment
  • Magnetic hysteresis
  • Micromechanical devices
  • Spraying
  • Surface treatment
  • Transistors

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