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Development of Piezoelectric RF-MEMS Switch Driven by Low Operating Voltage

[+] Author Affiliations
Isaku Kanno, Takaaki Suzuki, Hironobo Endo, Hidetoshi Kotera

Kyoto University, Kyoto, Japan

Paper No. IPACK2005-73099, pp. 2033-2036; 4 pages
doi:10.1115/IPACK2005-73099
From:
  • ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems collocated with the ASME 2005 Heat Transfer Summer Conference
  • Advances in Electronic Packaging, Parts A, B, and C
  • San Francisco, California, USA, July 17–22, 2005
  • Conference Sponsors: Heat Transfer Division and Electronic and Photonic Packaging Division
  • ISBN: 0-7918-4200-2 | eISBN: 0-7918-3762-9
  • Copyright © 2005 by ASME

abstract

This paper presents the possibility of piezoelectric RF-MEMS switches for low voltage operation. The switches we fabricated consist of micro-cantilevers using PZT thin films with the length of 490 μm and the width of 87 μm. The cantilevers are actuated as unimorph actuators that can be deflected by applying voltage between upper and lower electrodes. We could obtain large tip deflection of 3 μm even at the low voltage of 5.0V, which is well compatible with conventional IC drivers. This result indicates that the RF-MEMS switches using piezoelectric PZT thin films is advantageous to the low voltage switching devices in RF components compared with conventionally proposed electrostatic ones.

Copyright © 2005 by ASME

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