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Magnetic Recording Head/Suspension Array

IP.com Disclosure Number: IPCOM000105693D
Original Publication Date: 1993-Sep-01
Included in the Prior Art Database: 2005-Mar-20
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Kerth, R: AUTHOR

Abstract

In the fabrication process of film head arrays on arms for magnetic recording, sliders must be attached to a multi-part suspension, the suspension attached to an arm, the electrical connections made. This process involves many parts and parts assemblies, each assembly is handled and inspected many times. This translates into cost.

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Magnetic Recording Head/Suspension Array

      In the fabrication process of film head arrays on arms for
magnetic recording, sliders must be attached to a multi-part
suspension, the suspension attached to an arm, the electrical
connections made.  This process involves many parts and parts
assemblies, each assembly is handled and inspected many times.  This
translates into cost.

      This publication describes a method by which the
slider/suspension array can be fabricated in one step.  As shown in
Fig. 1, heads are attached to an element fabricated from flex circuit
technology.  The flex circuit not only contains the electrical
requirements of the magnetic recording head, but it also contains the
mechanical requirements for the suspension.  The heads are fixed to
the suspension, and the electrical connections made.  This connection
can be a bonding and or soldering process.  Once the heads are
attached, the flex circuitry is folded around an arm "E" structure,
as shown in Fig. 2.  The location of each head with respect to the
"E" structure is by the location of pins and holes.  Due to slack in
the bends around the "E" structure, the pin/hole relationship alone
defines the alignment.  Signal conditioning electronics can be
mounted in a central location or distributed along the cable to limit
the signal line lengths.  This simple assembly procedure will allow
low cost magnetic recording arms due to the reduced fabrication
steps, inspections and handling....