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Proceedings Paper

Laser microbumping and contamination-free tagging on magnetic hard disk surfaces: techniques and applications
Author(s): DaMing Liu; Teng Soon Wee; Yuan Yuan; Yongfeng Lu; Minghui Hong; Ryan J. K. Goh
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Paper Abstract

Laser micro-bumping and contamination-free tagging magnetic hard disk surfaces had been intensively investigated. Diode- pumped Nd:YVO4 laser with fundamental output was used for microbumping on NiP surface and contamination-free tagging on finished disk surface. Atomic force microscopy and Auger electron spectroscopy were employed to analyse processed samples. Processing results versus laser parameters were studied and optimized in detail. Based on the research, the techniques were commercialized subsequently. In this paper, we present our experimental results and introduce their applications.

Paper Details

Date Published: 25 February 2002
PDF: 4 pages
Proc. SPIE 4426, Second International Symposium on Laser Precision Microfabrication, (25 February 2002); doi: 10.1117/12.456830
Show Author Affiliations
DaMing Liu, Data Storage Institute (Singapore)
Teng Soon Wee, Laser Research Pte Ltd. (Singapore)
Yuan Yuan, Data Storage Institute (Singapore)
Yongfeng Lu, Data Storage Institute (United States)
Minghui Hong, Data Storage Institute (Singapore)
Ryan J. K. Goh, Laser Research Pte Ltd. (United States)

Published in SPIE Proceedings Vol. 4426:
Second International Symposium on Laser Precision Microfabrication
Isamu Miyamoto; Yong Feng Lu; Koji Sugioka; Jan J. Dubowski, Editor(s)

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