Amorphous magnetic thin film and plane magnetic element using same
US5522946A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1994 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Jun 28, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F30/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An amorphous magnetic thin film possesses as at least part of a thin film forming area a microstructure composed of a first amorphous phase containing at least either of iron and cobalt and bearing magnetism and a second amorphous phase disposed round the first amorphous phase and containing boron and at least one element selected from among the elements of the 4B Group in the Periodic Table of Elements and exhibits uniaxial magnetic anisotropy in the plane of film. The amorphous magnetic thin film possesses soft magnetism concurrently satisfying high saturation magnetization and high resistivity and, at the same time, easily acquires high frequency permeability by applying magnetic field in the hard axis of magnetization. Use of these amorphous magnetic thin films for plane magnetic elements permits the plane magnetic elements to be miniaturized and to be endowed with exalted performance. The amorphous magnetic thin film possesses a composition substantially represented by the formula: EQU (Fe.sub.1-x Co.sub.x).sub.1-y (B.sub.1-z X.sub.z).sub.y (wherein X stands for at least one element selected from among the 4B Group elements and x, y, and z stand for numerals satisfying the exp…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.