Browse Prior Art Database

Vertical Bonding of Pole Tip

IP.com Disclosure Number: IPCOM000073933D
Original Publication Date: 1971-Feb-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Haertlein, EE: AUTHOR

Abstract

During the bonding operation in the fabrication of a multielement magnetic head the ferrite profile 11 and ferrite relief 12 are vertically juxtaposed with respective gap-forming surfaces 13 and 14 aligned in a vertical or substantially vertical, position. A glass bonding rod 15 is disposed in a groove and accurately located above the surfaces 13 and 14 by the force of gravity. A spacer 17 is deposited over the entire length of the profile. Upon the application of heat, the rod 15 melts, and due to both capillary action and gravitational force fills the wedge and penetrates into the gap, as shown in view B. A groove 18 prevents the glass from penetrating downwardly between the spacer and the profile. After bonding the sandwich may be diced into single cores or sliced and grooved into multielement heads.

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Vertical Bonding of Pole Tip

During the bonding operation in the fabrication of a multielement magnetic head the ferrite profile 11 and ferrite relief 12 are vertically juxtaposed with respective gap-forming surfaces 13 and 14 aligned in a vertical or substantially vertical, position. A glass bonding rod 15 is disposed in a groove and accurately located above the surfaces 13 and 14 by the force of gravity. A spacer 17 is deposited over the entire length of the profile. Upon the application of heat, the rod 15 melts, and due to both capillary action and gravitational force fills the wedge and penetrates into the gap, as shown in view B. A groove 18 prevents the glass from penetrating downwardly between the spacer and the profile. After bonding the sandwich may be diced into single cores or sliced and grooved into multielement heads.

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