Nanotech 2001 Vol. 1
Nanotech 2001 Vol. 1
Technical Proceedings of the 2001 International Conference on Modeling and Simulation of Microsystems

Applications: MEMS, Sensors Chapter 7

Effects of Slider-Driven Piezo-Microactuator Placements and Profiles on HGA Sway Mode

Authors: J.P. Yang and S.X. Chen

Affilation: National University of Singapore, United States

Pages: 326 - 329

Keywords: piezo-microactuator, head gimbal assembly, hard disk drive, FEM, vibration

With areal recording density of hard disk drives (HDD) historically growing at an average of 60% per year, it is becoming increasingly more difficult to maintain the precise positioning required of the ever-smaller GMR heads to read and write data. It is predicted that 100 Gb/in 2 HDD areal density would be probably delivered by 2003. To reach such high track densities, the lower mechanical disturbances and higher servo-control bandwidth is required. The dual-stage servo system has been considered as the most promising solution. The motivation of this work is to analyze the effects of the slider-driven micro-actuator placements and profiles on head gimbal assembly (HGA) microactuator sway mode. Results showed that the sway mode frequency was obviously increased by selecting micro-actuator placements and its profiles, optimally.

ISBN: 0-9708275-0-4
Pages: 638