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A diaphragm based piezoelectric AlN film quality test structure

  • Nathan Jackson
  • , Rosemary O'Keeffe
  • , Robert O'Leary
  • , Mike O'Neill
  • , Finbarr Waldron
  • , Alan Mathewson
  • University College Cork
  • Analog Devices, Inc.

Research output: Chapter in Book/Report/Conference proceedingsConference proceedingpeer-review

Abstract

Aluminum nitride (AlN) is becoming a commonly used piezoelectric material for various applications due to its compatibility with CMOS processing. However, the piezoelectric properties of AlN are highly dependent on the deposition process and the underlying layers, and typically require several test structures in order to determine the quality of the film. This paper highlights a MEMS based diaphragm test structure which allows various types of material characterization to be tested, in order to determine the quality of the AlN film on a bulk micromachined device wafer.

Original languageEnglish
Title of host publicationICMTS 2012 - 2012 IEEE International Conference on Microelectronic Test Structures
Pages50-54
Number of pages5
DOIs
Publication statusPublished - 2012
Event2012 IEEE International Conference on Microelectronic Test Structures, ICMTS 2012 - San Diego, CA, United States
Duration: 20 Mar 201222 Mar 2012

Publication series

NameIEEE International Conference on Microelectronic Test Structures

Conference

Conference2012 IEEE International Conference on Microelectronic Test Structures, ICMTS 2012
Country/TerritoryUnited States
CitySan Diego, CA
Period20/03/1222/03/12

Keywords

  • Aluminum nitride
  • Di-aphragm
  • MEMS
  • Piezoelectrics

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