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Content Provider | IEEE Xplore Digital Library |
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Author | Yao-Long Zhu Bo Liu |
Copyright Year | 1965 |
Abstract | As technology moves to a mechanical head-disk spacing of 4-8 nm for the recording density beyond 100 Gb/in/sup 2/, new testing methodology becomes necessary to achieve both high sensitivity in flying height measurement and accurate characterization of slider-lube-disk interaction. This paper reports a polarization intensity interferometer which retains high sensitivity in fly-height measurement even when the slider-disk spacing is down to nanometer level. The setup can also study the effect of slider-lube-disk interaction on the flying performance of the slider. This is achieved by covering the commercial glass disk substrate with a layer of carbon overcoat and a layer of lubricant which are same as those used in the actual disk media. Both simulation and experimental investigations were conducted and the results agree well with each other. Results also indicate that it is important to take the slider-disk interaction into account in the flying height measurement of the nanometer spaced head-disk interface. |
Sponsorship | IEEE Magnetics Society |
Starting Page | 2677 |
Ending Page | 2679 |
Page Count | 3 |
File Size | 67763 |
File Format | |
ISSN | 00189464 |
Volume Number | 36 |
Issue Number | 5 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2000-09-01 |
Publisher Place | U.S.A. |
Access Restriction | One Nation One Subscription (ONOS) |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Testing Glass Lubricants Rough surfaces Surface roughness Optical polarization Density measurement Mechanical variables measurement Optical interferometry Protection |
Content Type | Text |
Resource Type | Article |
Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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