Contact force measurements at the head/disk interface for contact recording heads in magnetic recording

1996 ◽  
Author(s):  
S. K. Ganapathi ◽  
Mark Donovan ◽  
Yiao-Tee Hsia
Keyword(s):  
Contact Force ◽  
Magnetic Recording ◽  
Head Disk Interface ◽  
Force Measurements ◽  
Disk Interface ◽  
Recording Heads ◽  
Contact Recording

Understanding the Dynamics of Contact Recording Head-Disk Interfaces

2002 ◽  
Author(s):  
Bernhard E. Knigge ◽  
C. Mathew Mate ◽  
Qing Dai ◽  
Francis C. Lee ◽  
Robert N. Payne ◽  
...  
Keyword(s):  
Contact Stiffness ◽  
Integrated Approach ◽  
Contact Dynamics ◽  
Attractive Alternative ◽  
Air Bearing ◽  
Head Disk Interface ◽  
Disk Interface ◽  
Recording Heads ◽  
Contact Recording ◽  
Doppler Interferometer

Contact recording is fast becoming an attractive alternative to conventional flying recording heads. For contact recording, a new design philosophy has to be developed based on good understanding of contact dynamics of the head-disk interface. We have developed an integrated approach to understanding these interfaces, where experimental results from friction and laser doppler interferometer measurements are modeled using modified air bearing codes. Important insights gained: 1) smaller contact pad size reduces friction and bounce, 2) rougher disk surfaces have lower friction and contact stiffness, and 3) pitch angle and lubricant lube thickness strongly influence damping of slider motions.

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

Challenges of the head-disk interface for near contact and contact recording

1999 ◽  
Vol 35 (5) ◽  
pp. 2466-2468 ◽  
Author(s):  
Run-Han Wang ◽  
V. Nayak ◽  
R. Payne ◽  
W. Tang ◽  
L. Dorius ◽  
...  
Keyword(s):  
Head Disk Interface ◽  
Disk Interface ◽  
Contact Recording
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