Process of forming magnetic devices with enhanced poles

Details Process of forming magnetic devices with enhanced poles Process of forming magnetic devices with enhanced poles

1992-02-06

1996-11-05

Pianalto, Bernard

Coating processes

Direct application of electrical, magnetic, wave, or...

Ion plating or implantation

2041922, 204471, 427128, 427130, 427132, 427250, 427294, 4273741, 4273831, 4274301, 427547, 427599, 205149, 205259, C23C 1414

Patent

active

055715737

ABSTRACT:
A process resulting in enhanced pole performance, relative to permalloy poles, in narrow track magnetic devices. A preferred process includes increasing the anisotropy field of the pole material while maintaining an acceptable coercivity level and near zero magnetostriction. One embodiment utilizes a NiCoFe alloy containing 22% cobalt by weight, heat treated in an easy axis magnetic field in a non-oxidizing atmosphere. This process achieves favorable domain structures at narrow pole tip widths.

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