Title :
Gradual laser zone texture for low flying height sliders
Author :
Tomatsu, M. ; Kozu, Junichi ; Murayama, Hiroki ; Arita, Yoshihiko
Author_Institution :
Yokohama Res. Center, Mitsubishi Chem. Corp., Yokohama, Japan
fDate :
9/1/1997 12:00:00 AM
Abstract :
We measured the Acoustic Emission (AE) signals of the Head and Disk Interface (HDI) during slider seek operations using laser textured disks. We found that a gradual laser zone located outside the normal laser zone decreases the shock of landing in the CSS zone when the head flying height and laser bump height are comparable
Keywords :
acoustic emission testing; hard discs; laser materials processing; magnetic heads; magnetic recording; magnetic recording noise; surface texture; surface treatment; CSS zone; acoustic emission signals; gradual laser zone texture; head flying height; head-disk interface; high density hard disk substrates; laser bump height; laser textured disks; low flying height sliders; slider seek operations; Acoustic emission; Acoustic measurements; Acoustic sensors; Bandwidth; Cascading style sheets; Electric shock; Head; Laser noise; Laser theory; Shape; System testing; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
