Dynamic load head-disk interface durability of 50 percent sliders and polished disks

Author

Fu, Ta-Chang ; Bogy, David B.

Author_Institution

Dept. of Mech. Eng., California Univ., Berkeley, CA, USA

Volume

32

Issue

5

fYear

1996

fDate

9/1/1996 12:00:00 AM

Firstpage

3747

Lastpage

3749

Abstract

The dynamic load head-disk interface durability is experimentally investigated using 50 percent TPC sliders and super-smooth disks. Severe head-disk contact conditions are applied and disk-synchronized head loading motions are performed in order to see the effect of repeated dynamic load head-disk contacts. Readback signals are recorded and analyzed, and the disk surfaces of the head-disk contact area are examined after 100,000 repeated contacts. The results are compared with those of our previous study. We find that the dynamic load head-disk interface durability of 50 percent TPC sliders and polished disks is superior to that of 70 percent taper-flat sliders and textured disks, and the experimental results suggest that better dynamic load head-disk interface reliability can be achieved with good head-loading velocity control, even though head-disk contact may occur during loading

Keywords

magnetic disc storage; magnetic heads; magnetic recording; 50 percent TPC slider; disk-synchronized head loading; dynamic load head-disk interface durability; head-disk contact; readback signal; reliability; super-smooth polished disk; velocity control; Cascading style sheets; Computer interfaces; Disk drives; Disk recording; Laboratories; Magnetic heads; Rough surfaces; Surface resistance; Surface roughness; Surface texture;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.538824

Filename

538824