Magneto-resistance effect thin-film magnetic head having a laminated flux guide of permalloy and titanium films

摘要

A magneto-resistance effect thin-film magnetic head with a flux guide for efficiently guiding the signal magnetic flux from the magnetic recording medium to a magneto-resistance effect film. The flux guide is made up of a laminated structure of alternate layers of permalloy and Ti so that the number of the permalloy films is two or more. The flux guide may be formed by an underlying layer and the laminated structure formed on the underlying layer. The film thickness T1 of the permalloy film and the film thickness T2 of the Ti film preferably are such that 0 nm T1 50 nm and 0 nm T2 6 nm. The flux guide of the MR head may be formed easily and is excellent in magnetic characteristics. The playback signal output of the MR head may be improved without complicating the production process of the MR head.