Browse Prior Art Database

Titanium as an Underlayer for Nickel-Iron

IP.com Disclosure Number: IPCOM000041041D
Original Publication Date: 1987-May-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Jubb, NJ: AUTHOR [+4]

Abstract

A thin layer of titanium is often used as an adhesion layer for a nickel/iron layer in magnetic heads. The use of titanium as the adhesion layer has been found to lead to the presence of a (11 preferred orientation in the nickel/iron (NiFe) layer.

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Titanium as an Underlayer for Nickel-Iron

A thin layer of titanium is often used as an adhesion layer for a nickel/iron layer in magnetic heads. The use of titanium as the adhesion layer has been found to lead to the presence of a (11 preferred orientation in the nickel/iron (NiFe) layer.

The titanium flash layer causes varying degrees of strong (111) orientation in the NiFe film structure. When the Ti flash was removed, the NiFe film structure showed little or no preferred orientation and a fine, equiaxed grain structure. Titanium diffusion into the NiFe occurred when the titanium layer was present. Removing the Ti flash layer increased the amplitude of the read signal of the head. There appeared to be no change in adhesion performance or environmental stability of the thin film layers when the Ti flash layer was removed.

Disclosed anonymously

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