Fabrication of atmospheric pressure sensors using Au-Au bonding techniques for human activity monitoring

  • Xiuchun Hao*
  • , Yonggang Jiang
  • , Shohei Shiono
  • , Takayuki Fujita
  • , Kohei Higuchi
  • , Kazusuke Maenaka
  • *Corresponding author for this work

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

Abstract

This paper reports a capacitive pressure sensor for human activity monitoring application, which is fabricated by Au-Au diffusion bonding in ambient pressure. The optimized condition for the Au-Au bonding was investigated. A maximum bonding strength of 26.7 MPa is achieved with a bonding temperature of 400°C and bonding pressure of 5.5 MPa. By measuring the pressure-capacitance characteristics of the atmospheric pressure sensor, its sensitivity is found to be 7fF/kPa with a good linearity in the ambient pressure range from 60 kPa to 100kPa.

Original languageEnglish
Title of host publication2010 World Automation Congress, WAC 2010
StatePublished - 2010
Externally publishedYes
Event2010 World Automation Congress, WAC 2010 - Kobe, Japan
Duration: 19 Sep 201023 Sep 2010

Publication series

Name2010 World Automation Congress, WAC 2010

Conference

Conference2010 World Automation Congress, WAC 2010
Country/TerritoryJapan
CityKobe
Period19/09/1023/09/10

Keywords

  • Atmospheric pressure sensor
  • Au-Au diffusion bonding
  • Bonding strength

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