Shielded magnetic head having an inductive coil with low mutual

Details Shielded magnetic head having an inductive coil with low mutual Shielded magnetic head having an inductive coil with low mutual

1996-07-01

1997-12-02

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Hall effect

360126, G11B 539

Patent

active

056942761

ABSTRACT:
A magnetic head assembly includes a magnetoresistive (MR) read sensor dielectrically disposed between a magnetic shield layer and a first pole layer. A write transducer comprises an inductive coil having a plurality of windings dielectrically disposed between the first pole layer and a second pole layer. The magnetic shield layer partially overlaps portions of the coil windings. A nonmagnetic layer is coplanar with the magnetic shield layer. A reduced coupling area between the magnetic shield layer and the coil decreases the mutual inductance applied to the magnetic coil by the magnetic layer, resulting in the coil having better response to write current and being capable of operating at wider frequency ranges. The first pole layer includes a unique shape having a narrow mid-section integrally formed between the wider end sections. The narrow mid-section of the first pole layer also reduces the coupling area between the first pole layer and the coil and reduces the mutual inductance from the first pole layer to the coil.

REFERENCES:
patent: 5493466 (1996-02-01), Suyama

Affiliated with

Also associated with

Rating

Shielded magnetic head having an inductive coil with low mutual does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shielded magnetic head having an inductive coil with low mutual , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shielded magnetic head having an inductive coil with low mutual will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-806264