Browse Prior Art Database

Designing a Magnetic Transducer With Very Narrow Track Width

IP.com Disclosure Number: IPCOM000089219D
Original Publication Date: 1977-Oct-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 25K

Publishing Venue

IBM

Related People

Brock, GW: AUTHOR [+2]

Abstract

The above drawing depicts the surface of a magnetic transducer which interfaces magnetic media (not shown). The width of the read gap is very narrow (that is less than 10 micrometers.) The magnetic head is fabricated from a ferrite core having a predetermined width. The ferrite core is joined or bonded to a nonmagnetic support, for example, BTC (barium-titanium ceramic) material. Flying control slots are then fabricated so as to straddle the ferrite core and coincide with the joining seam. The read gap width and the write gap width are generated by sputter etching geometric holes in the ferrite core. The holes can be filled with ceramic or metallic coating to reduce magnetic interference. This approach allows automatic and accurate alignment between the read gap and the write gap.

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Designing a Magnetic Transducer With Very Narrow Track Width

The above drawing depicts the surface of a magnetic transducer which interfaces magnetic media (not shown). The width of the read gap is very narrow (that is less than 10 micrometers.) The magnetic head is fabricated from a ferrite core having a predetermined width. The ferrite core is joined or bonded to a nonmagnetic support, for example, BTC (barium-titanium ceramic) material. Flying control slots are then fabricated so as to straddle the ferrite core and coincide with the joining seam. The read gap width and the write gap width are generated by sputter etching geometric holes in the ferrite core. The holes can be filled with ceramic or metallic coating to reduce magnetic interference. This approach allows automatic and accurate alignment between the read gap and the write gap.

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