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Microsystem Technologies

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03-06-2016 | Technical Paper

Ultraviolet irradiation of lubricant and additives thin films to reduce wear to the magnetic head

Published in: Microsystem Technologies | Issue 7/2017

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Abstract

This paper examined the effects of using 1 nm thickness lubricant thin film combined with additives and deep ultraviolet (UV) irradiation at 185 nm wavelength on the magnetic hard disk to the wear of the magnetic head during contact. Different types and amount of additives were added into the lubricant thin film either with or without deep UV irradiation. A test involved burnishing the magnetic head on the lubricated magnetic hard disk was conducted. The experiment was conducted in a class 100 cleanroom. Contrary to previous studies, the addition of additives into the lubricant film did not lead to a decrease in the amount of wear to the magnetic head. Without deep UV irradiation, the lubricant film combined with additives causes more wear to the magnetic head. The effects of using different percentages of cyclotriphosphazene based additives in perfluoropolyether lubricant were also discussed in this paper. We conclude that deep UV irradiation needed if additives were added when the total lubricant thin film thickness is at 1 nm or below.

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Title: Ultraviolet irradiation of lubricant and additives thin films to reduce wear to the magnetic head
Publication date: 03-06-2016
Published in: Microsystem Technologies / Issue 7/2017
Print ISSN: 0946-7076
Electronic ISSN: 1432-1858
DOI: https://doi.org/10.1007/s00542-016-3004-2

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