发明名称 |
MAGNETIC DEVICES WITH ENHANCED POLES |
摘要 |
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.
|
申请公布号 |
CA2012294(C) |
申请公布日期 |
1994.10.04 |
申请号 |
CA19902012294 |
申请日期 |
1990.03.15 |
申请人 |
DIGITAL EQUIPMENT CORPORATION |
发明人 |
SHUKOVSKY, HAROLD B.;MARTIN, MICHELLE;MALLARY, MICHAEL;SIDMAN, ALAN L. |
分类号 |
C25D3/56;G11B5/127;G11B5/31;H01F10/16;H01F41/26;(IPC1-7):G11C11/02 |
主分类号 |
C25D3/56 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|