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Pico-Slider Design with Reduced Skew Sensitivity

IP.com Disclosure Number: IPCOM000115754D
Original Publication Date: 1995-Jun-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Robert, MP: AUTHOR

Abstract

The widespread use of rotary actuator in disk files generates a skew angle of the slider with respect to the velocity field of up to 20 degrees. Traditional sliders which were designed for linear actuators perform very poorly under skew.

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Pico-Slider Design with Reduced Skew Sensitivity

      The widespread use of rotary actuator in disk files generates a
skew angle of the slider with respect to the velocity field of up to
20 degrees.  Traditional sliders which were designed for linear
actuators perform very poorly under skew.

      A novel slider, with the pico form factor, is presented which
solves this problem while respecting the typical tolerances in
design.

      The proposed air bearing design is made of three pads (2 on the
side, 1 on the trailing edge), each of them presenting a simple step
at a uniform depth.  The rest of the slider has a deep recess which
does not participate in the performance analysis.  The absence of any
taper will significantly reduce the potential manufacturing defects.
The novelty in this design is the inclination of the angle of attack
of the front steps which presents two main advantages:
  1.  very small skew dependency, even for large skew angle; and
  2.  the angle of attack of the front steps may help in pushing away
       (unwanted debris) from the Head/Disk Interface.