Designing a Hard Disk Drive Kinetic Air Particle Detachment System Using Finite Element Analysis

  • Nualpun Jai-ngam Khon Kaen University
  • Kiatfa Tangchaichi Khon Kaen University

Downloads

Download data is not yet available.

Abstract

The removal of particulate contaminants adhering to a surface has been investigated using an air nozzle jet and purge particle system before assemble Head Stack Assembly to be final Hard Disk Drive finished good. These technical and economic challenges have driven cleaning process development away from chemistries and also maintain high particle removal efficiencies with reduced material loss, pattern damage. Finite element is using to study detachment of deposited particles in turbulent air flows and use this numerical model to design system more effectively. The experiment is established to study the removal effectiveness of system. Removal of the contaminants was observed by optical particle counter and quantified type of particle through digital image analysis. The experimental results showed that air particle purge cleaning performs well for surface cleaning. The particle removal efficiency of air cleaning and purge particle increases with elapsed time and it is well correlate to critical set up parameter such as pressure, velocity, pulse interval and cleaning duration time. The optimum pressure is defined to ensure no harmful to mechanical damage. The removal efficiency was detected higher for submicron-sized contaminants and well correlate to drag force. The success of this system could be further benefit for particle cleaning and process improvement resulting to product reliability improvement.

View article in other formats
Author Biographies
Nualpun Jai-ngam

Mechanical Engineering Department, Khon Kaen University, Thailand

Kiatfa Tangchaichi

Mechanical Engineering Department, Khon Kaen University, Thailand

Published
Vol 22 No 3, Jun 28, 2018
How to Cite
N. Jai-ngam and K. Tangchaichi, “Designing a Hard Disk Drive Kinetic Air Particle Detachment System Using Finite Element Analysis”, Eng. J., vol. 22, no. 3, pp. 65-81, Jun. 2018.

Authors who publish with Engineering Journal agree to transfer all copyright rights in and to the above work to the Engineering Journal (EJ)'s Editorial Board so that EJ's Editorial Board shall have the right to publish the work for nonprofit use in any media or form. In return, authors retain: (1) all proprietary rights other than copyright; (2) re-use of all or part of the above paper in their other work; (3) right to reproduce or authorize others to reproduce the above paper for authors' personal use or for company use if the source and EJ's copyright notice is indicated, and if the reproduction is not made for the purpose of sale.

Article Statistics
Total PDF downloads: 149