DocumentCode :
1477516
Title :
A new magnetic disk with servo pattern embedded under recording layer
Author :
Ohtsuka, Y. ; Koshikawa, T. ; Aikawa, K. ; Maeda, H. ; Mizoshita, Y.
Author_Institution :
File Memory Lab., Fujitsu Labs. Ltd., Atsugi, Japan
Volume :
33
Issue :
5
fYear :
1997
fDate :
9/1/1997 12:00:00 AM
Firstpage :
2620
Lastpage :
2622
Abstract :
In this paper, we propose a new concept and fabrication process for magnetic disks with embedded servo patterns, named ESPAR. A servo pattern for phase detection consisting of straight lines is formed by photolithography. The disk has a flat and smooth surface for proximity recording. Servo layer thickness and recording layer thickness can be designed independently. We fabricated the disk and demonstrated the demodulation of the servo signal
Keywords :
magnetic disc storage; photolithography; servomechanisms; ESPAR; demodulation; embedded servo pattern; fabrication; magnetic disk; phase detection; photolithography; proximity recording; Demodulation; Disk recording; Fabrication; Lithography; Magnetic heads; Magnetic recording; Magnetic separation; Phase detection; Reflective binary codes; Servomechanisms; Vibrations; Writing;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/20.617427
Filename :
617427
Link To Document :
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