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Thickness and Processing Effects on the Composition and Actuating Force of Pb(Zr,Ti)O3 Thin-Film Micro-Actuator for Hard Disk Drives

[+] Author Affiliations
Yang Jing, Jianbin Luo, Tianmin Shao

Tsinghua University, Beijing, China

Paper No. WTC2005-63316, pp. 691-692; 2 pages
  • World Tribology Congress III
  • World Tribology Congress III, Volume 1
  • Washington, D.C., USA, September 12–16, 2005
  • Conference Sponsors: Tribology Division
  • ISBN: 0-7918-4201-0 | eISBN: 0-7918-3767-X
  • Copyright © 2005 by ASME


Sol-gel process associated with integrated circuit (IC) technique was used to fabricate Lead-zirconate-titanate (PZT) films with different thickness and process parameter on Pt/Ti/SiO2 /Si substrates. Meanwhile, a new dual-stage actuator system including a piezoelectric micro-actuator and a voice coil motor for positioning a magnetic head for high-density hard disc devices (HDDs) have been designed, fabricated. Fig. 1 shows the structure illustration of the micro-actuator that consists of slider, “U”-type substrate and piezoelectric multilayer elements. The crystalline structure and growth behavior of the films with different thickness have been studied by X-ray diffraction, scanning electron microscopy, and Auger electron spectroscopy. The structure of piezoelectric element is as Pt/Ti/PZT/Pt/Ti multi-layer film.

Copyright © 2005 by ASME



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