Magnetic recording head, magnetic reproducing head, magnetic head, tape drive and disk drive

Abstract

A magnetic recording / reproducing head having a plurality of magnetic head elements for multi-channeling capable of achieving high density recording / reproducing capability, including: a plurality of magnetic recording / reproducing head layers each including magnetic recording / reproducing head elements fabricated by a thin film process and interposed between two insulating / magnetic shielding layers laminated on a non-magnetic substrate; the total of magnetic recording / reproducing head elements formed therein are displaced from each other in a head width direction, and each magnetic recording / reproducing head layer has a plurality of magnetic recording / reproducing head elements formed at a predetermined pitch.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] The present document is based on Japanese Priority Application JP2002-140556, filed in the Japanese Patent Office on May 15, 2002, the contents of which being incorporated herein by reference to the extent permitted by law. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a magnetic recording head, a magnetic reproducing head, a magnetic head, a tape drive and a disk drive using a similar, and in particular, relates to a technology for facilitating arrangement of a plurality of magnetic heads (including both magnetic recording heads and magnetic reproducing heads) (hereinafter referred to as multiplicity of magnetic heads) in order to achieve higher recording density. [0004] 2. Description of the Related Art [0005] Recently, in order to realize large capacity of storage for magnetic recording media, an increasingly higher recording density is required for magnetic heads, so that the us...

AI Technical Summary

Benefits of technology

[0017] As a result, there is a limit to the number of laminations allowable for the magnetic head layers, thereby preventing the multi-channeling, and in consequence, the higher recording density and reproducing of information.

[0036] In other words, as environmental conditions such as temperature at the time of manufacture of the magnetic recording head layer or of the magnetic reproducing head layer differ, if it is arranged so as to change the environment after completion of the manufacture of the magnetic recording head layer for a subsequent manufacture of the magnetic reproducing head layer, an alteration cycle of the process environment can be reduced to once, thereby substantially simplifying the manufacturing process.

Problems solved by technology

However, when a plurality of magnetic head layers are laminated, there occurs a problem that, due to an error in accuracy of positioning (alignment error) between each magnetic head element in its width direction, a displacement between the top magnetic head element and the bottom magnetic head element in the head width direction becomes considerably large.

This is caused by the fact that, when forming magnetic head elements by a thin film processing, each layer thereof is formed by masking with a mask and depositing a film, however, there is a limit to securing accuracy in positioning of each masking in the lamination.

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