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Protected High Density MR Head

IP.com Disclosure Number: IPCOM000053860D
Original Publication Date: 1981-Nov-01
Included in the Prior Art Database: 2005-Feb-12

Publishing Venue

IBM

Related People

Authors:
Rohen, JE Wallace, JE [+details]

Abstract

Magnetic read head 10 includes a magnetoresistive (MR) element 11, oriented with its easy magnetic axis 12 being substantially parallel to magnetic record media 13. Element 11 has a relatively short dimension 14, by which it is sensitive to a relatively small region of magnetic flux on media 13. Accordingly, high-density binary patterns of flux can be perceived. The length and thickness of element 11 are selected to provide the required resistance and current density to optimize the performance of the device and to meet the requirements of associated circuitry. Electrical contact with element 11 is made by gold layers 15 and 16.