Fundamental features of perpendicular magnetic recording and design considerations for future portable HDD integration

Author

Tanaka, Yoichiro

Author_Institution

Core Technol. Center, Toshiba Corp., Tokyo, Japan

Volume

41

Issue

10

fYear

2005

Firstpage

2834

Lastpage

2838

Abstract

By intensive study of the perpendicular magnetic recording integration into the 2.5" 50-80 GB/platter test hard disk drives (HDD), we have successfully developed the first 1.8" 40 GB/platter HDD product featuring the perpendicular magnetic recording technology at 133 Gbit/in² recording density. The high resolution recording performance enabled us to pack more data in the BPI direction than in the TPI direction. Thermal stability and spacing robustness in writing process of the perpendicular recording system were also found to be great advantages of the future portable HDD systems.

Keywords

hard discs; magnetic heads; perpendicular magnetic recording; thermal stability; 1.8 inch; 2.5 inches; 40 GB; 50 to 80 GB; BPI direction; TPI direction; hard disk drives; perpendicular magnetic recording; perpendicular recording system; portable HDD; single pole type perpendicular head; thermal stability; Application software; Digital magnetic recording; Disk recording; Hard disks; Magnetic heads; Perpendicular magnetic recording; Portable computers; Prototypes; Robust stability; Testing; Complementary features; double layer perpendicular media; hard disk drive (HDD); integration; perpendicular recording; portable hard disk drive; single pole type perpendicular head;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.855266

Filename

1519135