NDLI: Slider Design Optimization for Lube-Surfing Head-Disk Interface Scheme

Content Provider	IEEE Xplore Digital Library
Author	Gonzaga, L.V. Bo Liu Shengkai Yu Wei Hua Weidong Zhou
Copyright Year	1965
Abstract	The stringent magnetic spacing requirement of future high-density magnetic disk drives requires new head disk interface scheme. One possible approach is the lube-surfing scheme-where majority of the slider body is flying while the reader/writer (R/W) element is thermally protruded to contact and penetrate the disk lubricant. This scheme, however, has many challenges to overcome to be feasible. One of these challenges is a slider with improved disk waviness-following capability especially for waviness with wavelength less than half the slider length. This paper explores air bearing design strategies to improve the waviness-following performance of a Femto slider. We propose a ¿W-shaped¿ trailing pad slider and investigated the impact of pad layout, etching depth and trailing pad size to the disk waviness-following performance. We have also incorporated a trenched trailing pad structure to reduce air bearing pressure over the R/W element so as to minimize the loss in air bearing pressure during lube contact and to improve the actuation efficiency.
Sponsorship	IEEE Magnetics Society
Starting Page	1922
Ending Page	1924
Page Count	3
File Size	386932
File Format	PDF
ISSN	00189464
Volume Number	46
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Design optimization Memory Magnetic levitation Pressure control Disk drives Magnetic heads Lubricants Etching Technological innovation thermal fly height control Air bearing femto slider lube-surfing head-disk interface
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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High Selectivity Etching for Texture Fabrication on Air Bearing Surface

Effects of Gas Physical Properties on Flying Performance of Air Bearing Slider

Dynamic Studies on Lube-Surfing Recording

Lube-Surfing Recording and Its Feasibility Exploration

Investigations of Light Contact and Lube-Surfing State With Electrical Current

Head disk interface dynamic stability analysis for surfing recording

Characterization of intermittent contact head disk interface

Slider-Disk Contact Characterization Using a Thermal Fly-Height Control Slider

Where Tape and Hard-Disk Technology Meet: The HDD Head–Tape Interface

Slider Design Optimization for Lube-Surfing Head-Disk Interface Scheme

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