Title :
Investigation of 2 Gb/in2 magnetic recording at a track density of 17 kTPI
Author :
Futamoto, M. ; Kugiya, F. ; Suzuki, M. ; Takano, H. ; Matsuda, Y. ; Inaba, N. ; Miyamura, Y. ; Akagi, K. ; Nakao, T. ; Sawaguchi, H. ; Fukuoka, H. ; Munemoto, T. ; Takagaki, T.
Author_Institution :
Hitachi Ltd., Tokyo, Japan
fDate :
11/1/1991 12:00:00 AM
Abstract :
Developments of magnetic head, recording medium, positioning, and signal processing technologies made it possible to perform magnetic recording at an areal density of 2 Gb/in2 on a prototype 3.5-in diameter hard disk drive. A track density of 17 kTPI, which is comparable to or even greater than that used in optical storage systems, is used to minimize the reduction in the physical clearance between the medium and the head. The authors outline the system and its component technologies. The read/write characteristics of the 3.5-in prototype disk system are also reported
Keywords :
hard discs; magnetic heads; magnetic recording; 3.5 in; areal density; hard disk drive; magnetic head; magnetic recording; positioning; prototype disk system; read/write characteristics; recording medium; signal processing; track density; Actuators; Disk recording; Magnetic films; Magnetic heads; Magnetic noise; Magnetic recording; Magnetic separation; Saturation magnetization; Signal to noise ratio; Sputtering;
Journal_Title :
Magnetics, IEEE Transactions on
