DocumentCode
998389
Title
Perpendicular magnetic recording floppy disk drive
Author
Yamamori, K. ; Nishikawa, R. ; Muraoka, T. ; Suzuki, T.
Author_Institution
Toshiba R&D Center, Komukai, Kawasaki, Japan
Volume
19
Issue
5
fYear
1983
fDate
9/1/1983 12:00:00 AM
Firstpage
1701
Lastpage
1703
Abstract
A perpendicular magnetic recording floppy disk drive, small in size but large in capacity, has been experimentally developed, employing a ring-shaped head and a Co-Cr sputtered disk. A three megabytes per surface capacity, at a 50 kFRPI linear density and a 144 TPI track density, has been accommodated on a 3.5"-diameter disk. The head has a 0.4 μm recording/ reproducing gap and a 2.0 μm tunnel erasing gap. The disk consists of 0.5μm thick Co-Cr films sputtered on both sides of polyester substrate. The design concept, specifications, and some performance data for the disk are described.
Keywords
Drives; Magnetic disk recording; Magnetic recording/reading heads; Anisotropic magnetoresistance; Disk drives; Disk recording; Fabrication; Floppy disks; History; Magnetic films; Magnetic heads; Magnetic materials; Perpendicular magnetic recording;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1983.1062762
Filename
1062762
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