Browse Prior Art Database

Ferrite Head End Section Construction

IP.com Disclosure Number: IPCOM000086189D
Original Publication Date: 1976-Aug-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

McCormick, W: AUTHOR [+3]

Abstract

Magnetic head end sections are constructed from ferrite and ceramic blocks in steps, permitting assembly of delicate windings after the application of high temperatures.

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Ferrite Head End Section Construction

Magnetic head end sections are constructed from ferrite and ceramic blocks in steps, permitting assembly of delicate windings after the application of high temperatures.

Fig. 1 shows the manufacture of a read/write or erase section. Two are required. For each, a ferrite brick is diced into wafers which are lapped on both faces and machined to a desired track thickness. Two shields, for surrounding a ferrite wafer, are formed by dicing a nonmagnetic (for example, ceramic) block into wafers. The ferrite core is sandwiched between the ceramic outer shields by an adhesive or glass. The sandwich is then diced and machined to size. Three relief grooves provide a tab for receiving a coil after high-temperature glassing.

In Fig. 2, two end sections enclose a center section to form a complete head.

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