Magnetic head of magnetic reluctance effect type and a method fo

Details Magnetic head of magnetic reluctance effect type and a method fo Magnetic head of magnetic reluctance effect type and a method fo

1981-07-20

1984-03-20

Kilgore, Robert Martin

Dynamic magnetic information storage or retrieval

Head

Hall effect

29603, 360126, G11B 512, G11B 530, G11B 542, H01F 706

Patent

active

044384700

ABSTRACT:
A process for making magnetic reluctance effect type magnetic heads comprises forming the magnetic sensor, first lead and second lead sections in series by use of the same material. The noise in the magnetic head is reduced, yet the output is increased by making the first lead section of a width larger than that of the magnetic sensor and second lead sections. The reproducing sensitivity of the magnetic head is increased by forming a plurality of magnetic sensor sections in series within a rectangular area. The control of the magnetic characteristics of the head are controlled for providing less dispersion by providing a substrate on which a magnetic reluctance effect type material varying in electric resistance in response to any magnetic field is formed into a film, the substrate being optionally etched by the use of photolithography to form the magnetic sensor sections, the first lead section and the second lead section on the substrate in given configurations.

REFERENCES:
patent: 3260980 (1966-07-01), Weiss
patent: 4047236 (1977-09-01), Lee
patent: 4051542 (1977-09-01), Kanai
patent: 4071868 (1978-01-01), Kaminaka
patent: 4251910 (1981-02-01), Griffith
patent: 4277808 (1981-07-01), Nagaki
patent: 4320428 (1982-03-01), Somers
patent: 4376337 (1983-03-01), Kobayasi

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