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Advanced Slider Design and Structure with 3-D Rounded Leading and Trailing Edges

IP.com Disclosure Number: IPCOM000013316D
Original Publication Date: 2000-Aug-01
Included in the Prior Art Database: 2003-Jun-18
Document File: 1 page(s) / 29K

Publishing Venue

IBM

Abstract

In many recent publications on advanced air bearing slider, various slider designs and structures (1,2) with rounded corners and leading and trailing edges have been shown to reduce head/disk interface surface damage during storage device operation. Overall, the rounded corner or edges of the sliders may be formed by various abrasive, grinding, etching, laser ablation, polishing, burnishing, cutting or other blending processes well known in the art.

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  Advanced Slider Design and Structure with 3-D Rounded Leading and Trailing Edges

   In many recent publications on advanced air bearing slider, various slider
designs and structures (1,2) with rounded corners and leading and trailing edges
have been shown to reduce head/disk interface surface damage during storage
device operation. Overall, the rounded corner or edges of the sliders may be
formed by various abrasive, grinding, etching, laser ablation, polishing,
burnishing, cutting or other blending processes well known in the art.

       Generally, sliders with rounded corners or edges increase the impact area
on disk surface, distribute the impact force to a larger area and subsequently
cause much less (or no) damage on the disk surface as compared to those of
sliders with sharp corners and edges. However, most of these rounded slider
corners and edges are only in 2-D dimension. For future contact recording where
the recording slider head is essentially dragging on top of the magnetic disk
surface, the corner and edge rounding (2-D rounding) will not be sufficient in
reducing contacting damage, especially when the head/disk interface is under
shock or vibration under operating conditions. The one sharp edge left by the 2-D
rounding that normally exists by polishing and grinding process will cut and
damage the disk/head surfaces during slider pitching, rolling contact during
shock, or vibration. This damage become worse in contact recording operation.

    Described is the conventional slider...