Interface stability study towards ultra-high density magnetic recording

Information storage technology is the backbone technology of the modern information society. Magnetic disk drive is the major information storage device. One critical challenge for modern magnetic disk drive is the ability to achieve stable and small spacing between the data read/write head and data...

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Main Author: Tan, Boon Kee
Other Authors: Liu Bo
Format: Theses and Dissertations
Published: 2008
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Online Access:https://hdl.handle.net/10356/5291
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-52912023-03-11T17:48:22Z Interface stability study towards ultra-high density magnetic recording Tan, Boon Kee Liu Bo Ling Shih Fu School of Mechanical and Aerospace Engineering DRNTU::Engineering::Manufacturing Information storage technology is the backbone technology of the modern information society. Magnetic disk drive is the major information storage device. One critical challenge for modern magnetic disk drive is the ability to achieve stable and small spacing between the data read/write head and data storage media which allows stable signal to be read and written on the media. This thesis investigates the stability associated with the head-disk interface for future ultra-high density magnetic recording. Currently, the areal density of the top level magnetic disk drives is around 120 Giga-bit per square inch (Gb/in2). The work reported in this thesis is targeted at the technology required for 1000 Gb/in2 (or 1 tera-bit per square inch) of areal density and beyond, which requires a head-disk physical spacing or flying height of the head-slider of about 3.5 nm or below. One significance effect of such small spacing is that the short range surface interaction forces such as the intermolecular force, the lubricant-induced meniscus force and the electrostatic force become comparable in magnitude to the slider air bearing force. As a result, the spacing or flying height stability becomes a severe concern. MASTER OF ENGINEERING (MPE) 2008-09-17T10:47:09Z 2008-09-17T10:47:09Z 2008 2008 Thesis Tan, B. K. (2008). Interface stability study towards ultra-high density magnetic recording. Master’s thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/5291 10.32657/10356/5291 Nanyang Technological University application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
topic DRNTU::Engineering::Manufacturing
spellingShingle DRNTU::Engineering::Manufacturing
Tan, Boon Kee
Interface stability study towards ultra-high density magnetic recording
description Information storage technology is the backbone technology of the modern information society. Magnetic disk drive is the major information storage device. One critical challenge for modern magnetic disk drive is the ability to achieve stable and small spacing between the data read/write head and data storage media which allows stable signal to be read and written on the media. This thesis investigates the stability associated with the head-disk interface for future ultra-high density magnetic recording. Currently, the areal density of the top level magnetic disk drives is around 120 Giga-bit per square inch (Gb/in2). The work reported in this thesis is targeted at the technology required for 1000 Gb/in2 (or 1 tera-bit per square inch) of areal density and beyond, which requires a head-disk physical spacing or flying height of the head-slider of about 3.5 nm or below. One significance effect of such small spacing is that the short range surface interaction forces such as the intermolecular force, the lubricant-induced meniscus force and the electrostatic force become comparable in magnitude to the slider air bearing force. As a result, the spacing or flying height stability becomes a severe concern.
author2 Liu Bo
author_facet Liu Bo
Tan, Boon Kee
format Theses and Dissertations
author Tan, Boon Kee
author_sort Tan, Boon Kee
title Interface stability study towards ultra-high density magnetic recording
title_short Interface stability study towards ultra-high density magnetic recording
title_full Interface stability study towards ultra-high density magnetic recording
title_fullStr Interface stability study towards ultra-high density magnetic recording
title_full_unstemmed Interface stability study towards ultra-high density magnetic recording
title_sort interface stability study towards ultra-high density magnetic recording
publishDate 2008
url https://hdl.handle.net/10356/5291
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