Study on soft-particle intrusion in a head/disk interface of load/unload drives

2000 ◽  
Vol 36 (5) ◽  
pp. 2745-2747 ◽  
Author(s):  
Junguo Xu ◽  
H. Tokisue ◽  
Y. Kawakubo
Keyword(s):  
Soft Particle ◽  
Head Disk Interface ◽  
Disk Interface

Soft Particle-Induced Magnetic Erasure Without Physical Damage to the Media

2007 ◽  
Vol 129 (4) ◽  
pp. 729-734 ◽  
Author(s):  
M. Roy ◽  
J. L. Brand
Keyword(s):  
Frictional Heating ◽  
Mechanical Damage ◽  
Soft Particle ◽  
Head Disk Interface ◽  
Physical Damage ◽  
Component Level ◽  
Disk Interface ◽  
Permanent Loss ◽  
The Media ◽  
The Impact

With ever increasing areal density, interactions of particles with a head-disk interface become an ever more important factor impacting the drive reliability. Although particles trapped between the head and the disk could induce mechanical damage to the media resulting in permanent loss of data, data loss has also been observed without any obvious signs of physical damage to the media. We devised a component-level test to study this mode of data erasure on both glass and aluminium media. Our data indicate that the frictional heating associated with contact force between the particle and the disk could lead to permanent loss of data. In addition, we performed investigations to study the impact of air bearing design features, load/unload mechanism, and particle number density on the head disk interface.

Effect of media overcoat on van der Waals interaction at the head–disk interface

2005 ◽  
Vol 97 (12) ◽  
pp. 126106 ◽  
Author(s):  
Raymond R. Dagastine ◽  
Lee R. White ◽  
Paul M. Jones ◽  
Yiao-Tee Hsia
Keyword(s):  
Van Der Waals ◽  
Van Der Waals Interaction ◽  
Head Disk Interface ◽  
Disk Interface

Head–Disk Interface Materials Issues in Heat-Assisted Magnetic Recording

2014 ◽  
Vol 50 (3) ◽  
pp. 137-143 ◽  
Author(s):  
Bruno Marchon ◽  
Xing-Cai Guo ◽  
Bala Krishna Pathem ◽  
Franck Rose ◽  
Qing Dai ◽  
...  
Keyword(s):  
Magnetic Recording ◽  
Head Disk Interface ◽  
Heat Assisted Magnetic Recording ◽  
Disk Interface ◽  
Interface Materials

Air-Bearing Design Towards Super Stable Head-Disk Interface

2006 ◽  
Author(s):  
Bo Liu ◽  
MingSheng Zhang ◽  
Yijun Man ◽  
Shengkai Yu ◽  
Gonzaga Leonard ◽  
...  
Keyword(s):  
Air Bearing ◽  
Head Disk Interface ◽  
Disk Interface ◽  
Bearing Design
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