Title :
Study of thin-film media for linear densities beyond 500 KBPI
Author :
Shi, Stone ; Liu, Frank ; Tong, Hua-Ching ; Dey, Subrata ; Kimmal, Jay ; Malhotra, Sudhir ; Lal, Brajesh B. ; Schultz, Marilee
Author_Institution :
Read-Rite Corp., Milpitas, CA, USA
fDate :
9/1/1999 12:00:00 AM
Abstract :
The linear density capability of thin-film media with a coercivity of about 2900 Oe and Mrt ranging from 0.33 to 0.5 memu/cm2 was studied with the advanced dual-spin valve heads used for the 14 Gbits/in2 areal density demonstration. With a track error rate of 10-7 as the criterion, a linear density as high as 546 KFCI was achieved with the optimum head/medium design. Track edge noise was studied. Its effect on linear density design was examined, These results were used for designing the 14 Gbits/in2 system
Keywords :
coercive force; hard discs; magnetic heads; magnetic recording noise; magnetic thin film devices; spin valves; areal density; coercivity; dual-spin valve heads; linear density capability; optimum head/medium design; thin-film media; track edge noise; track error rate; Coercive force; Error analysis; Magnetic heads; Magnetic noise; Magnetic recording; Saturation magnetization; Signal to noise ratio; Test equipment; Testing; Transistors;
Journal_Title :
Magnetics, IEEE Transactions on
