Skew angle and off-track capability of near contact recording systems

Various sliders for near-contact recording systems have begun to appear in high areal density disk drives. In this paper, systematic investigations were conducted to evaluate the effects of skew angle on off-track capability of near-contact recording systems. Tri-pad sliders were used in the investi...

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Bibliographic Details
Published in:IEEE transactions on magnetics 1996-09, Vol.32 (5), p.3866-3868
Main Authors: Hu, Sheng-Bin, Liu, Bo, Low, Teck-Seng
Format: Article
Language:English
Subjects:
Disk drives
Disk recording
Interference
Magnetic heads
Magnetic recording
Noise level
Pneumatic actuators
Target tracking
Testing
Writing
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Summary:Various sliders for near-contact recording systems have begun to appear in high areal density disk drives. In this paper, systematic investigations were conducted to evaluate the effects of skew angle on off-track capability of near-contact recording systems. Tri-pad sliders were used in the investigations. The spacings between read/write elements and disk surface were in the range of 0.6/spl sim/1.2 /spl mu/in. The off-track capability is reduced and the noise level of residual signal after overwriting is increased, when skew angle is increased. A large skew angle also makes the off-track capability asymmetric and sensitive to off-track direction. However, increased skew angle reduces the track-to-track interference in the writing operation.
ISSN:0018-9464
1941-0069
DOI:10.1109/20.539199