Browse Prior Art Database

Hybrid Read/Write/Erase Head

IP.com Disclosure Number: IPCOM000040181D
Original Publication Date: 1987-Oct-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 2 page(s) / 75K

Publishing Venue

IBM

Related People

Anand, A: AUTHOR [+2]

Abstract

A hybrid read/write/erase head has its read element produced by batch fabricating thin film elements of magnetoresistive material, for instance, onto a block of ferrite material. The individual elements are diced and lapped and bonded to an inductive ferrite pole piece as part of the pole structure. The back edge of the read element forms a part of the gap of the write/erase section of the head. As shown in the figure, the head includes an inductive pole piece 10 which has a conductor coil 11 wrapped around a portion of its length. A chip portion 12 of ferrite forms part of the write/erase gap 13 and includes a read transducer element 14 deposited on the outside edge. A closure block 15 of ferrite completes the magnetic path for the head.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Hybrid Read/Write/Erase Head

A hybrid read/write/erase head has its read element produced by batch fabricating thin film elements of magnetoresistive material, for instance, onto a block of ferrite material. The individual elements are diced and lapped and bonded to an inductive ferrite pole piece as part of the pole structure. The back edge of the read element forms a part of the gap of the write/erase section of the head. As shown in the figure, the head includes an inductive pole piece 10 which has a conductor coil 11 wrapped around a portion of its length. A chip portion 12 of ferrite forms part of the write/erase gap 13 and includes a read transducer element 14 deposited on the outside edge. A closure block 15 of ferrite completes the magnetic path for the head. The read transducer element 14 can be made of a magnetoresistive material or can have its own thin film pole pieces and conductor coil forming an inductive read gap. The chip portion 12 can be diced from a wafer of ferrite onto which is batch fabricated the individual read elements 14.

1

Page 2 of 2

2

[This page contains 3 pictures or other non-text objects]