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Magnet Resistive Head Electro-Magnetic Interference Damage Protection by Conductive Head Wire Tube

IP.com Disclosure Number: IPCOM000117390D
Original Publication Date: 1996-Feb-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Aoyagi, A: AUTHOR [+4]

Abstract

Disclosed is a Magnet Resistive (MR) head Electro-Magnetic Interference (EMI) damage protection by the conductive head wire tube. When the MR head wire receives the electrical magnetic wave, the head is sometimes damaged by the electrical over current on head wire. This type of damage is protected by using the conductive head wire tube.

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This is the abbreviated version, containing approximately 100% of the total text.

Magnet Resistive Head Electro-Magnetic Interference Damage Protection
by Conductive Head Wire Tube

      Disclosed is a Magnet Resistive (MR) head Electro-Magnetic
Interference (EMI) damage protection by the conductive head wire
tube.  When the MR head wire receives the electrical magnetic wave,
the head is sometimes damaged by the electrical over current on head
wire.  This type of damage is protected by using the conductive head
wire tube.

      The Figure shows the head slider assembly.  Most of the area of
the head wire is covered with the head wire tube.  Normal head wire
which has the non-conductive head wire tube receives the electrical
magnetic wave easily as an antenna.  The changing of the head wire
tube surface from non-conductive to conductive can avoid the
electrical over-stress to the MR head.

      Therefore, the conductive head wire tube is effective in
avoiding MR head damage on the hard disk drive's manufacturing line.