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Method And Apparatus for Cleaning the Air Bearing Surface of Magnetic Recording Sliders

IP.com Disclosure Number: IPCOM000120053D
Original Publication Date: 1991-Mar-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 3 page(s) / 103K

Publishing Venue

IBM

Related People

Beck, JL: AUTHOR [+4]

Abstract

An air-bearing surface (ABS) is cleaned by a device that loads the slider in a well-controlled manner against a clean carbon overcoated disk and slides it 2 cm.. Provision is made for proper geometry of load and unload to prevent damage to parts. Inspection of the disk by bright collimated light reveals the debris that was on the slider. The higher surface energy of the disk ensures complete debris transfer from the ABS. Clean disks are available because in the present state of the art, machines that clean disks are much more effective than the production slider cleaning processes.

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This is the abbreviated version, containing approximately 52% of the total text.

Method And Apparatus for Cleaning the Air Bearing Surface of Magnetic
Recording Sliders

      An air-bearing surface (ABS) is cleaned by a device that
loads the slider in a well-controlled manner against a clean carbon
overcoated disk and slides it 2 cm..  Provision is made for proper
geometry of load and unload to prevent damage to parts.  Inspection
of the disk by bright collimated light reveals the debris that was on
the slider. The higher surface energy of the disk ensures complete
debris transfer from the ABS.  Clean disks are available because in
the present state of the art, machines that clean disks are much more
effective than the production slider cleaning processes.

      Fig. 1 shows a side view, and Fig. 2 shows a top view of
the device.  A typical head/arm assembly (HAA) 25 is shown positioned
on the tilting platform 12.  The platform locates the HAA with pin 22
and stop 21.  When the platform is unloaded, spring 14 holds it
tilted such that the spring-attachment bracket 15 rests against the
surface 26. Thus, the HAA can be put in without contacting the disk.
After the HAA is properly located on the platform, the operator
pushes down on the HAA with enough force to extend spring 14 and
bring the slider 23 to rest on the disk surface 2.  The suspension
support area 13 of the platform holds the suspension 24 almost
parallel to the arm 25 when the platform is rotated away from the
disk.  When the platform is rotated towards the disk, until it
contacts the vertical stop 9, the slider rests flat on the disk, and
the support area 13 is only a few thousandths of an inch below the
suspension 24.  Therefore, the entire spring load of the suspension
(typically, 10 grams) is pressing the slider against the disk just as
it would in the disk drive.  This method of loading the slider on the
disk is ideal becau...